Готові списки джерел за темами / Bitumen Analysis

Зміст

Статті в журналах
Дисертації
Книги
Частини книг
Тези доповідей конференцій
Звіти організацій

Добірка наукової літератури з теми "Bitumen Analysis"

Автор: Grafiati

Опубліковано: 10 грудня 2022

Оновлено: 28 січня 2023

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Ознайомтеся зі списками актуальних статей, книг, дисертацій, тез та інших наукових джерел на тему "Bitumen Analysis".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Статті в журналах з теми "Bitumen Analysis"

Zheng, Chuanfeng, Genze Li, Yazhi Xu, Danni Wang, and Dan Lv. "Analysis of the Effects of Ageing on the Cohesive Strength of Polymer-Modified Bitumen at Low Temperatures." Baltic Journal of Road and Bridge Engineering 13, no. 2 (June 25, 2018): 156–64. http://dx.doi.org/10.7250/bjrbe.2018-13.410.

Повний текст джерела

Анотація:

The decay law on the ageing process of the cohesive strength of styrene-butadiene-styrene(SBS)- and polyethylene(PE)-modified bitumens at low temperatures was investigated. The rotated-thin-film oven test was used to age the two types of polymer-modified bitumens. The cohesive strengths at different low-temperature conditions were tested quantitatively according to technology for testing the low-temperature cohesive strength of bitumen. The decay curve of bitumen low-temperature cohesive strengths was drawn, and the embrittlement time of bitumen at different ageing states was obtained according to the decay curve. Results showed that ageing time definitely influenced the attenuation degree of the low-temperature cohesive strength of the two types of polymer-modified bitumens and influenced the appearance of the low-temperature cohesive strength peak, i.e., the bitumen embrittlement time, which advanced after ageing. The lightweight components of polymer-modified bitumen were lost after ageing. The bitumen embrittlement time was advanced, and the sharp attenuation of the low-temperature cohesive strength of bitumen appeared. In the future, bitumen antiageing technology and lighter part pre-supplement technology should be studied in-depth.

Стилі APA, Harvard, Vancouver, ISO та ін.

Zhang, Ji Zhe, Martin Van de Ven, and Shao Peng Wu. "Morphology and Rheological Analysis of Nanoclay in Polymer Modified Bitumen." Key Engineering Materials 509 (April 2012): 155–61. http://dx.doi.org/10.4028/www.scientific.net/kem.509.155.

Повний текст джерела

Анотація:

This paper investigated the influence of nanoclay on the properties of polymer modified bitumen(PMB). The nanoclay-polymer modified bitumen has been produced by mixing a standard 70/100 pen bitumen with polymer at a fixed proportion and then mixed with different amount of nanoclay. The rheological behaviour of the samples have been determined using dynamic shear rheometer. The morphology of the samples as well as the distribution of polymer and nanoclay throughout the bitumen have been characterized with a fluorescence microscopy. The result indicate that the rheological properties of nanoclay-polymer modified bitumens dependent on the percentage nanoclay. The morphology result shows that dispersed polymer particles existed in continuous bitumen phase and the addition of nanoclay does not seem to change the particle size of the polymer.

Стилі APA, Harvard, Vancouver, ISO та ін.

Zieliński, K. "Analysis of Rheological State of SBS Modified Bitumens Based on Viscosity Measurements." Archives of Civil Engineering 59, no. 1 (March 1, 2013): 143–53. http://dx.doi.org/10.2478/ace-2013-0007.

Повний текст джерела

Анотація:

Abstract Each bitumen has a slightly different group composition, thus bitumen modification with the SBS copolymer gives slightly different results in each case. Both in the industry and construction practice there is still no simple method available which would allow the evaluation of the impact of SBS content and the group composition of bitumen on the structural and rheological properties of the polymer bitumen mix. The article presents the results of the dynamic viscosity tests of three bitumen types. Based on the analysis of the results obtained, it was found that changes in the rheological properties caused by SBS additive are characteristic for each of the bitumens tested and their chemical and group composition. They are also proportionate to the amount of the modifier added. In order to have a possibility to measure this impact, three coefficients rheologically characterizing polymer and bitumen mixes were applied.

Стилі APA, Harvard, Vancouver, ISO та ін.

Zhurinov M.Zh.,, Teltayev B.B.,, Kalybay A.A.,, Rossi C.O.,, and Amirbayev Ye.D.,. "COMPARATIVE ANALYSIS OF LOW TEMPERATURE RESISTANCE FOR NANOCARBON AND OTHER BITUMENS." NEWS of National Academy of Sciences of the Republic of Kazakhstan 5, no. 443 (October 15, 2020): 89–96. http://dx.doi.org/10.32014/2020.2518-170x.108.

Повний текст джерела

Анотація:

A comparative analysis of the low temperature resistance for a nanocarbon bitumen and other 30 neat and modified bitumens has been performed in the work. The stiffness at the temperatures of -24°С, -30°С and -36°С under technical system Superpave has been accepted as an indicator of low temperature resistance of the bitumens. The stiffness of the bitumens has been determined on a bending beam rheometer (standard ASTM D 6648-08). Before testing the bitumens have been subjected to the double artificial aging: short-term aging – under standard AASHTO Т 240-13 and long-term aging – under standard ASTM D 6521-08. The nanocarbon bitumen has been prepared in the laboratory of the Kazakhstan Highway Research Institute (KazdorNII) with the use of a road bitumen of the grade BND 70/100 produced by the Pavlodar petrochemical plant (PNHZ) and a nanocarbon powder (2% by weight) manufactured from a coal rock of the deposit “Saryadyr” “Corporation “ON-Olzha” LLP, Akmola region, Kazakhstan). The nanocarbon powder (150-200 nm) has been manufactured by three-stage size reduction of the coal rock: I – a mechanical dispergator (up to 2-3 mm), II – an aerodynamic mill (up to 20 mcm), III – a reactor with a rotating electromagnetic field. The neat bitumens of the grades BND 50/70, BND 70/100, BND 100/130 have been produced by the plants of Kazakhstan and Russia; they satisfy the requirements of the standard ST RK 1373-2013. The modified bitumens have been prepared in the laboratory of KazdorNII with the use of the neat bitumens, 7 types of the polymers, crumb rubber and polyphosphoric acid and they satisfy the requirements of the standard ST RK 2534-2014. It has been determined that the nanocarbon bitumen is one of the most resistant at the low temperatures: -24°С, -30°С and -36°С.

Стилі APA, Harvard, Vancouver, ISO та ін.

Eskandarsefat, S., P. Caputo, C. Oliviero Rossi, R. Vaiana, and C. Sangiorgi. "Advanced Characterization of Bituminous Binders: Comparing Industrial and Paving-Grade Bituminous Binders." Eurasian Chemico-Technological Journal 23, no. 1 (March 25, 2021): 45. http://dx.doi.org/10.18321/ectj1033.

Повний текст джерела

Анотація:

This paper deals with the fundamental differences between industrial and paving-grade bituminous binders. The paper is presented in two main sections: 1) a review of the materials’ colloidal structure and the required properties for the industrial and paving applications; 2) a wide range of experimental tests with which the bituminous binders were studied and compared. In this research, a 160/220 industrial bitumen was studied and compared to a paving-grade bitumen with the same penetration and with a lower penetration, 70/100 one. The research consisted of physical, chemical, thermal, microstructural, and rheological analysis to provide a comprehensive understanding of these bituminous binders of diverse applications. Overall, the comparison of the tests’ results indicated that while the asphaltene content and its characteristics have a great influence on the bitumen’s properties, it is not the only fundamental factor. During the study of the chemical structures via Atomic Force Microscopy (AFM), it was found that the Peri phase (attributed to the resins) also plays an important role, defining the bitumen’s physical visco-elastic properties. In fact, from a microstructural point of view using AFM a significant difference was notified between the industrial bitumen and the paving-grade ones. These differences allow the paving-grade bitumens to be more elastic and ductile compared to the industrial bitumen.

Стилі APA, Harvard, Vancouver, ISO та ін.

Zhurinov, M. Zh, and B. B. Teltayev. "BITUMENS AND POLYMER BITUMENS - NANODISPERSE SYSTEMS." Series of Geology and Technical Sciences 445, no. 1 (February 1, 2021): 172–76. http://dx.doi.org/10.32014/2021.2518-170x.24.

Повний текст джерела

Анотація:

This work shows the data regarding the elemental and chemical group compositions of the road bitumens. The short characteristic has been shown for the components of the bitumens - the asphaltenes, the resins and the oils. The properties have been described for the bitumens on which they have the direct impact. The description is given for the micellar model of the bitumens from the point of view of the colloid chemistry. The analysis has been performed for the results of the study by other authors for the asphaltenes of a bitumen and an oil. The group chemical compositions are given for the bitumen of the grades BND 50/70, BND 70/100 and BND 100/130 produced by the plants of Kazakhstan. It has been shown that the content of the asphaltenes in them is from 15.8% to 24.3%; in most cases, the content of the asphaltenes is within the range of 20-25%, i.e. the asphaltenes nanoclusters are almost a fourth of the bitumen by weight. The brief description is given for the best known polymers used for the modification of the road bitumen: 1) the reactive polymers Elvaloy 4170 and Elvaloy AM; 2) the polymers of the group SBS - Kraton D 1192A, Calprene 501, SBS L 30-01 A, KUMHO KTR and Butonal NS 198. It is proposed to consider the bitumen and the polymer bitumen as the peculiar nanodisperse systems. The structures are described for the polymer bitumen nanodisperse systems occurring during the modification of the road bitumen with the polymers of the above two groups.

Стилі APA, Harvard, Vancouver, ISO та ін.

Fatemi, Saeed, Jafar Bolouri Bazaz, and Seyed Ali Ziaee. "Laboratory Investigation of Using Calcium Lignosulfonate as an Oxidation Inhibitor in Bitumen." Advances in Civil Engineering 2022 (January 31, 2022): 1–17. http://dx.doi.org/10.1155/2022/1488958.

Повний текст джерела

Анотація:

Asphalt mixtures are the major constituent of road constructions. Those mixtures expose to high-temperature levels during the construction process and their life cycle. The bitumen aging occurred because of the harmful effects of elevated temperatures upon the asphalt mixtures, which leads to oxidation, evaporation, and physical hardening within the bitumen structure. The aging phenomenon can intensify the hardness and brittleness of bitumen, which negatively affects the performance of asphalt mixtures. Researchers have investigated different types of bitumen additives to diminish the negative effects of bitumen aging, among which biomass additives are more attractive for researchers because that additives are organic and mainly emanate from waste materials. The current study investigated the effect of calcium lignosulfonate (CLS) at four quantities (i.e., 5%, 10%, 15%, and 20% by the weight of base bitumen) as an antiaging bitumen additive on physical, workability, thermal susceptibility, rheological, and chemical properties of 60/70 penetration grade bitumen. The results revealed that although the addition of CLS into the bitumen enhanced the rigidity of bitumen against rutting failure at high-temperature conditions, the CLS-modified bitumen was more susceptible to fatigue failure than the virgin bitumen at low-temperature regions. The workability analysis showed that the CLS powder could improve the bitumen’s consistency against permanent deformation at high-temperature levels. Although the bitumen’s viscosity increased because of CLS modification, the CLS-modified bitumen provided acceptable workability based on the Superpave specifications. Outcomes from the rheological test revealed that the addition of CLS into the bitumen improved the rutting resistance of bituminous mixtures at high-temperature levels. The SARA analysis indicated that the hardening of CLS-modified samples emanated from the formation of asphaltenes within the bitumen because of CLS incorporation. Different types of aging indices, including PRP, SPI, VAI, and AIRF, which were calculated in this research, showed that the presence of CLS within the bitumen could retard the bitumen’s aging process.

Стилі APA, Harvard, Vancouver, ISO та ін.

Plachy, Jan, Vít Petranek, and Zdenek Caha. "Bitumen Substance Analysis." Advanced Materials Research 897 (February 2014): 103–6. http://dx.doi.org/10.4028/www.scientific.net/amr.897.103.

Повний текст джерела

Анотація:

This contribution deals with the composition of the bitumen substance of bitumen waterproofing sheets used in bridge decks in the Slovak Republic. This contribution examines the samples of waterproofing sheets from various manufacturers in terms of the bitumen areal weight and the quantity of fillers in the bitumen substance. This contribution also answers the hypothesis of whether the quantity of bitumen is increased or decreased and the filler affects the basic thermal technical properties of bitumen waterproofing sheets, such as its flexibility at low temperatures and its heat resistance.

Стилі APA, Harvard, Vancouver, ISO та ін.

Porto, Michele, Paolino Caputo, Abraham A. Abe, Valeria Loise, and Cesare Oliviero Rossi. "Stability of Bituminous Emulsion Induced by Waste Based Bio-Surfactant." Applied Sciences 11, no. 7 (April 6, 2021): 3280. http://dx.doi.org/10.3390/app11073280.

Повний текст джерела

Анотація:

In the asphalt industry, bituminous emulsions are widely used in road pavement operations and in building/construction processes such as cold mix asphalt and waterproofing processes, respectively. A very important fact to keep in mind is that not all types of bitumen are suitable for the realization of bituminous emulsions. This is largely due to the variation in their chemical nature and the different cracking processes carried out on the bitumen during the fractional distillation process in the petroleum industry. The objective of this study is to identify the underlying causes of the non-emulsionability of bitumen using Nuclear Magnetic Resonance (NMR) and Dynamic Shear Rheology (DSR) analysis. NMR analysis aims at identifying the fundamental chemical components that are responsible for the emulsionability of the bitumen binder and how important their role is in this phenomenon. On the other hand, the DSR analysis is aimed at determining if the rheological (viscoelastic) behavior of bitumen is implicated in its emulsionability. The indications gotten from the data produced by these techniques, enable us as soon as the analyzed bitumen is deemed non-emulsionable to identify what type of additive can be used to modify the bitumen and alleviate its non-emulsionability until a point where its chemical components become ideal for the realization of bituminous emulsions. In this research work, a model bitumen (labelled as Cimar) which is known for its excellently high emulsionability in the production of anionic bituminous emulsions was used as the reference sample. Two bitumens (labelled as Adriatica and Alma) which from preliminary testing were deemed non-emulsionable were alongside the additives selected and subjected to the aforementioned techniques for analysis on their emulsionability. The NMR data obtained allowed the identification of the chemical nature of the components of the analyzed bitumens and the design of the right additive which improves the bitumen and makes it suitable for the preparation of emulsions. In addition to these, a largely uncommon however effective method of acid number determination of bitumen gave indications on an underlying factor which largely influences the emulsionability of bitumen. An aliphatic and an aromatic surfactant were identified thanks to the spectroscopic findings in this study.

Стилі APA, Harvard, Vancouver, ISO та ін.

Antunes, Vítor, Fernando Moreno, Maria Rubio-Gámez, Ana Cristina Freire, and José Neves. "Assessing RAP Multi-Recycling Capacity by the Characterization of Recovered Bitumen Using DSR." Sustainability 14, no. 16 (August 16, 2022): 10171. http://dx.doi.org/10.3390/su141610171.

Повний текст джерела

Анотація:

This paper addresses the changes in bitumen properties during multi-recycling cycles, both before and after ageing. The rheology of recovered bitumen was characterized using the dynamic shear rheometer. The softening point and penetration value were also determined. The analysis showed that the bitumen’s properties could be recovered even after more than one recycling cycle. The bitumen recovered from the second recycling cycle presented an average reduction of 45% in terms of complex modulus when compared with the first recycling cycle. The bitumen from the RAP mixtures presented a similar susceptibility to ageing. The analysis clearly showed that RAP has the potential to be multi-recycled.

Стилі APA, Harvard, Vancouver, ISO та ін.

Більше джерел

Дисертації з теми "Bitumen Analysis"

Hailesilassie, Biruk. "Morphology Characterization of Foam Bitumen and Modeling for Low Temperature Asphalt Concrete." Doctoral thesis, KTH, Byggnadsmaterial, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-183105.

Повний текст джерела

Анотація:

Development of new asphalt technologies to reduce both energy consumption and CO2 production has attracted great interest in recent years. The use of foam bitumen, as one of them, is attractive due to the low investment and production cost. Formation and decay of foam bitumen is a highly dynamic temperature dependent process which makes characterization difficult. In this thesis, new experimental tools were developed and applied for characterizing the foam bitumen during the hot foaming process. One of the main goals of this study was to improve understanding and characterization of the foam bitumen formation and decay. X-ray radiography was used to study the formation and decay of foam bitumen in 2D representation. The results demonstrate that the morphology of bubble formation depends on the types of bitumen used. Moreover, theoretical investigation based on the 3D X-ray computed tomography scan dataset of bubble merging showed that the disjoining pressure increased as the gap between the bubbles in the surface layer (foam film) decreased with time and finally was ruptured. Examining the foam bitumen stream right at the nozzle revealed that foam bitumen at a very early stage contains fragmented pieces of irregular size rather resembling a liquid than foam. The result from thermogravimetric analysis demonstrated that residual water content depends on the initial water content, and was found to be between 38 wt% and 48 wt% of the initial water content of 4 wt% to 6 wt%. Moreover the influence of viscosity and surface tension on bubble shape and rise velocity of the bubbles using level-set method was implemented in finite element method. The modeling results were compared with bubble shape correlation map from literature. The results indicated that the bubble shapes are more dependent on the surface tension parameters than to the viscosity of the bitumen, whereas the bitumen viscosity is dominant for bubble rising velocity.

QC 20160303

Стилі APA, Harvard, Vancouver, ISO та ін.

Edwards, Ylva. "Influence of waxes on bitumen and asphalt concrete mixture performance." Doctoral thesis, KTH, Väg- och banteknik, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-553.

Повний текст джерела

Анотація:

This doctoral thesis consists of a literature review, presented in two papers, and another six papers describing experimental studies of the influence of different kinds of wax and polyphosporic acid on bitumen and asphalt concrete mixture properties. The literature review should give an extensive description of the field of knowledge concerning wax in bitumen. Effects of wax in crude oil, bitumen and asphalt concrete as well as test methods for studying these effects are described. Theories behind possible mechanisms are also discussed, and commercial wax as additive to bitumen for different purposes included. The experimental parts comprise laboratory studies involving totally five 160/220 penetration base bitumens from different sources, two isolated bitumen waxes, five commercial waxes and one polyphosphoric acid. Asphalt concrete slabs, containing base or modified bitumen were prepared and tested. Binder properties were evaluated using different types of laboratory equipment, such as dynamic shear rheometer (DSR), bending beam rheometer (BBR), differential scanning calorimeter (DSC), force ductilometer, as well as equipment for determining conventional parameters like penetration, softening point, viscosity, and Fraass breaking point. Fourier Transform Infrared (FTIR) spectroscopy and Thin Layer Chromatography (TLC-FID) were used for chemical characterization. The binders were aged by means of the rolling thin film oven test (RTFOT) and pressure ageing vessel (PAV) in combination. Asphalt concrete properties were evaluated at low temperatures using the tensile strain restrained specimen test (TSRST) and creep test at -25°C. Dynamic creep testing was performed at 40°C, as well as complex modulus tests between 0 and 20°C. Binder test results indicated that the magnitude and type of effect on bitumen rheology depend on the bitumen itself, type of crystallizing fraction in the bitumen and/or type and amount of additive used. Bitumen composition was found to be of decisive importance. Adding polyethylene wax or polyphosphoric acid, especially to a non-waxy 160/220 penetration grade bitumen, showed no or positive effects on the rheological behaviour at low temperatures (decrease in stiffness) as well as medium and high temperatures (increase in complex modulus and decrease in phase angle). However, the corresponding positive effects could not be shown in dynamic creep testing (at 40°C) of asphalt concrete mixtures containing these modified binders. Adding FT-paraffin decreased the physical hardening index for all bitumens. Also polyethylene wax and montan wax showed this effect for some bitumens. Slack wax showed a large increasing effect on physical hardening, and polyphosphoric acid none or a minor negative effect. No correlation between physical hardening index (PHI) and wax content by DSC was found in this study, involving both natural bitumen wax and commercial wax. Addition of the commercial waxes used showed no or marginally positive influence on bitumen ageing properties for the bitumens and test conditions used. Comparing asphalt mixture test results to the corresponding binder test results, the effects on asphalt mixtures from adding commercial wax or polyphosphoric acid were less evident. Significant binder physical hardening by BBR could not be confirmed by TSRST.
QC 20101006

Стилі APA, Harvard, Vancouver, ISO та ін.

Hunt, Philip Duncan. "Analysis of roughness deterioration of bitumen sealed unbound granular pavements for use in road asset management modeling." Thesis, Queensland University of Technology, 2002. https://eprints.qut.edu.au/36178/1/36178_Hunt_2002.pdf.

Повний текст джерела

Анотація:

The road system under the care and control of the State of Queensland, Australia has an estimated replacement value of $23 Billion (US$12 billion), excluding structures. Pavement management systems for recording, rating, and predicting a pavement's condition are used to prudently manage this large asset. Tne of the fundamental components of a pavement management system is the method of determining a pavement's rate of deterioration over time. Throughout the world, "pavement roughness" is one of the most widely used methods of measuring the performance of a pavement. Queensland is a large State, having an approximate area of 1.7 million square kilometres, and incorporates many small communities separated by vast distances. The majority of bitumen sealed pavements exist in low traffic volume rural areas, and consist of either a flexible unbound granular pavement or a semi-rigid modified granular pavement. This study has focussed on the roughness progression of these pavement types. Roughness data has been collected at varying frequencies since 1987, across the State's road network. In order to understand roughness progression behaviour, this research has considered 16,000 pavement segments (each lkm) from all parts of the State. This number is significant, as many previous research efforts, which form the basis of the current roughness progression models, have been based on the study of typically between forty and several hundred pavement segments. This extensive database has been used in this study to investigate trends in roughness pogression over time (~R). Traditionally, roughness progression has been represented in many road asset management models as an exponential relationship, providing rapidly increasing roughness values as the pavement approaches the end of its theoretical life. However, this relationship has not been commonly observed in the State's pavement asset. Investigations revealed that a linear relationship, termed the Linear Roughness Progression Rate (LRPR), represented the roughness progression of the pavement segments very well, and thereby assists in the identification of poor performing pavement segments. Pavement maintenance costs can also be used to identify poor performing pavement segments, based on excessive use of pavement maintenance funds to maintain functionality. This information assists in 'unmasking' pavements that may possess an umepresentative LRPR. For this reason, the effects of pavement maintenance costs (~PMC) on roughness progression have also been examined. Independent variables which are typically considered to affect roughness progression, have been examined with LRPR in this study. These variables include traffic volume, traffic loading, pavement type, subgrade soil classification, climate (rainfall, temperature, Thomthwaite Index), pavement age, and width of bitumen surface (seal width). It has been established that the roughness progression of each individual pavement segment is unique. No particular formula or model has been identified, which can accurately predict the roughness progression of any particular pavement segment from a population, based upon known values of the independent variables. In order to develop an understanding of the effects of these variables on pavement performance, a means of rating a pavement's condition using a combination of LRPR and excessive pavement maintenance expenditure has been established. Subsequently, a discrete rating scale from "Good", "Fair" to "Poor" has been used. The effects of the independent variables on pavement rating have been examined across the population of study pavement segments, using summary charts. This has enabled the proportions of pavement rated within each category to be examined with changes in each independent variable, to establish whether that variable has a global influence on pavement rating. For instance, whether the proportion of pavements rated "Poor" varies with Annual Average Daily Traffic. These summary charts provide the basis of a Network Performance Profile, which has yielded a better understanding of the variables globally influencing pavement rating across the State's road network. Further, the Network Performance Profile provides insight into the inbuilt risk of the past and current pavement design and delivery system. The knowledge gained from a whole of network analysis of condition may form a catalyst for the assessment of material quality, design methods, construction technology, and contract delivery, to ensure that pavements have the best chance of performing well. Currently, road network performance is commonly defined only by a measure of the road network's 'Absolute Condition'. The Network Performance Profile developed in this study will add new measures of pavement performance to the current definition. By including a Current Network Profile, and a more robust method for predicting mid term (five year) roughness values, asset managers will have a suite of information on historic, current, and estimated future road network condition, to use in evaluating the impact of previous and current management decisions. Pavement roughness prediction analysis, based on site-specific extrapolation of LRPR, has shown that at least six time-series roughness data points are required if an accurate short term prediction (4 to 6 year) is to be achieved. It is believed that the research of roughness progression has highlighted the unique nature of pavement segment deterioration. It is interesting to note that all categories of pavements suffer from a range of good to poor performance, and this finding is considered to be one of the keys in understanding pavement behaviour. At a network level, the study of performance has been considered very successful and has not only provided a robust methodology for quantifying road network performance, but also provides information for input into the improvement of technical policies and funding distribution decisions.

Стилі APA, Harvard, Vancouver, ISO та ін.

Barrett, Anna S. "Analysis of Polycyclic Aromatic Hydrocarbon Exposure in Road Paving Workers." University of Cincinnati / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1406809606.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Hosseini, Ehsan. "Mechanical Properties of Outer Protection Layer on Submarine High Voltage Cables." Thesis, Blekinge Tekniska Högskola, Institutionen för maskinteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-859.

Повний текст джерела

Анотація:

In this thesis, the Mechanical properties of polypropylene yarn of outer protection layer on Submarine High Voltage Cable, twisted around submarine cable,is determined on various conditions at ABB Company. In the first step, tensile tests are done with polypropylene yarn specimens with and without Bitumen at Room temperature. In the second step,tensile tests are done with polypropylene yarn specimens with and without Bitumen and with knotted polypropylene yarn namely: the Fishermen’s knot, the Weaver’s knot, the Square knot and the Overhand knot at Warm Condition (60˚c) and Cold Condition(-5˚c). In the final step,it is proposed to obtain numerical solution using FEM analysis with ABAQUS Software to obtain the hoop stress , the yarn stresses from twisting cable and analyzing of the cylindrical buckling in the buckling torsion and buckling bending on the outer layer of submarine cable with polypropylene material that is mixed with Bitumen.

Стилі APA, Harvard, Vancouver, ISO та ін.

Orire, Endurance. "The techno-economics of bitumen recovery from oil and tar sands as a complement to oil exploration in Nigeria / E. Orire." Thesis, North-West University, 2009. http://hdl.handle.net/10394/5704.

Повний текст джерела

Анотація:

The Nigeria economy is wholly dependent on revenue from oil. However, bitumen has been discovered in the country since 1903 and has remained untapped over the years. The need for the country to complement oil exploration with the huge bitumen deposit cannot be overemphasized. This will help to improve the country's gross domestic product (GDP) and revenue available to government. Bitumen is classifled as heavy crude with API (American petroleum Institute) number ranging between 50 and 110 and occurs in Nigeria, Canada, Saudi Arabia, Venezuela etc from which petroleum products could be derived. This dissertation looked at the Canadian experience by comparing the oil and tar sand deposit found in Canada with particular reference to Athabasca (Grosmont, Wabiskaw McMurray and Nsiku) with that in Nigeria with a view of transferring process technology from Canada to Nigeria. The Nigeria and Athabasca tar sands occur in the same type of environment. These are the deltaic, fluvial marine deposit in an incised valley with similar reservoir, chemical and physical properties. However, the Nigeria tar sand is more asphaltenic and also contains more resin and as such will yield more product volume during hydro cracking albeit more acidic. The differences in the components (viscosity, resin and asphaltenes contents, sulphur and heavy metal contents) of the tar sands is within the limit of technology adaptation. Any of the technologies used in Athabasca, Canada is adaptable to Nigeria according to the findings of this research. The techno-economics of some of the process technologies are. x-rayed using the PTAC (petroleum technology alliance Canada) technology recovery model in order to obtain their unit cost for Nigeria bitumen. The unit cost of processed bitumen adopting steam assisted gravity drainage (SAGD), in situ combustion (ISC) and cyclic steam stimulation (CSS) process technology is 40.59, 25.00 and 44.14 Canadian dollars respectively. The unit cost in Canada using the same process technology is 57.27, 25.00 and 61.33 Canadian dollars respectively. The unit cost in Nigeria is substantively lesser than in Canada. A trade off is thereafter done using life cycle costing so as to select the best process technology for the Nigeria oil/tar sands. The net present value/internal rate of return is found to be B$3,062/36.35% for steam assisted gravity drainage, B$I,570124.51 % for cyclic steam stimulation and B$3,503/39.64% for in situ combustion. Though in situ combustion returned the highest net present value and internal rate of return, it proved not to be the best option for Nigeria due to environmental concern and response time to production. The best viable option for the Nigeria tar sand was then deemed to be steam assisted gravity drainage. An integrated oil strategy coupled with cogeneration using MSAR was also seen to considerably amplify the benefits accruable from bitumen exploration; therefore, an investment in bitumen exploration in Nigeria is a wise economic decision.
Thesis (M.Ing. (Development and Management))--North-West University, Potchefstroom Campus, 2010.

Стилі APA, Harvard, Vancouver, ISO та ін.

Glita, Sylvie. "Contribution à l'étude de certains bitumes." Le Havre, 1988. http://www.theses.fr/1988LEHAA002.

Повний текст джерела

Анотація:

Etude de la relation entre la teneur en vanadium des bitumes et leur vitesse de vieillissement. Mise au point d'une méthode de dosage rapide du vanadium dans les bitumes par absorption atomique en four graphite. A la suite d'un vieillissement artificiel, il est montre par des essais physiques et par chromatographie, que la nature du chelate dans lequel est engagé le groupement Vanadyl, ainsi que celle des substrats auxquels il peut se fixer, doivent intervenir sur l'éventualité d'une réaction d'oxydation. Observation des organisations moléculaires, telles qu'elles se développent au sein du matériau, par microscopie électronique, après cryofracture

Стилі APA, Harvard, Vancouver, ISO та ін.

Therene, Hubert. "Etude physico-chimique de la fraction dite saturée des bitumes." Rouen, 1987. http://www.theses.fr/1987ROUES006.

Повний текст джерела

Анотація:

Les composés saturés des bitumes c'est-à-dire les alcanes et les cyclanes sont séparés des bitumes par précipitation sélective et chromatographie d'adsorption. Ils sont analysés par des méthodes spectrométriques et chromatographiques. L'influence des composés saturés sur les démixtions et les propriétés mécaniques dynamiques du bitume est déterminée par microscopie en contraste de phase et en lumière polarisée

Стилі APA, Harvard, Vancouver, ISO та ін.

Das, Prabir Kumar. "Ageing of Asphalt Mixtures : Micro-scale and mixture morphology investigation." Doctoral thesis, KTH, Väg- och banteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-145051.

Повний текст джерела

Анотація:

There are many variables that affect the viscoelastic properties of asphalt mixtures with time, among which age hardening may be considered one of the important ones. Age hardening of asphalt mixtures is an irreversible process, which contributes to a reduction of the durability of pavements and eventually increases the maintenance cost. Beside the environmental effects, ageing in asphalt mixture depends on the physicochemical properties of bitumen and mixture morphology which is a combined effect of aggregate packing, porosity, air void distribution and their interconnectivity. Thus, a clear understanding on the physicochemical properties of bitumen and mixture morphology may help to predict the performance of asphalt mixtures, which will contribute to longer-lasting and better performing pavements. When looking at the bitumen at micro-scale, one can see microstructures appearing under certain conditions which can be partially explained by the interaction of the individual phases. Since the thermo-rheological behavior of bitumen depends largely on its chemical structure and intermolecular microstructures, studying these can lead to understanding of the mechanism, speed and conditions under which this phase behavior occurs. Linking this to the changes in properties of bitumen can thus lead to better understanding of the causes of ageing, its dominant parameters and the resulting diminished mechanical response. To investigate ageing in asphalt pavements, along with physicochemical properties of bitumen one needs to also focus on the influence of mixture morphology. It is known that asphalt mixtures with similar percentages of air-voids can have different morphologies and thus can age differently. Prediction of ageing behavior without considering the influence of mixture morphology may thus lead to erroneous conclusions and non-optimal mix design. Hence, it is important to understand the interplay between the mixture morphology and ageing susceptibility and relate this to the long term mixture performance. The aim of this Thesis was to develop fundamental understanding on ageing in asphalt mixtures that can contribute to the asphalt community moving away from the currently used accelerated ageing laboratory tests and empirical models that can lead to erroneous conclusions. To reach this aim, experimental and numerical micro-scale analyses on bitumen and meso-scale investigations on mixture morphology have been performed which, collectively, allowed for the development of a method for the prediction of asphalt field ageing, incorporating both mixture morphology and micro-scale bitumen mechanisms. For this, first, the mechanisms of surface ageing and diffusion controlled oxidative ageing were identified. Secondly, the influence of mixture morphology on asphalt ageing susceptibility was investigated. Procedures to determine the controlling parameter were then developed and an empirical framework to quantify the long-term field ageing of asphalt mixtures was set-up. For this, a combination of experimental and numerical methods was employed. An extensive experimental study was carried out to understand the fundamental mechanisms behind the micro-structural phase appearance and the speed or mobility at which they change. Atomic Force Microscopy (AFM) was utilized at different temperatures to investigate the phase separation behavior for four different types of bitumen and co-relate it with the Differential Scanning Calorimetry (DSC) measurements. Based on the experimental findings, it was concluded that the observed phase separation is mainly due to the wax/paraffin fraction presence in bitumen (Paper I). A hypothesis was developed of the appearance of a thin film at the specimen surface due to ageing which is creating a barrier, restricting thus the microstructures to float towards the surface. Furthermore, investigation showed that depending on the bitumen and exposure types this surface thin film is water soluble and thus the moisture damage becomes more severe with the ageing of asphalt pavement (Paper II and IV). A new empirical relation to obtain the primary structure coating thickness was established utilizing mixture volumetric properties and gradation using a large set of data from different literature sources. It was found that the enhanced morphological framework can be used to optimize the long term performance of asphalt mixtures (Paper III). Thereafter, the effect of diffusion controlled oxidative ageing on different mixture morphologies based on oxidative ageing mechanism of bitumen and diffusion-reaction process was investigated using the Finite Element Method (FEM). From the FE analyses, the effect of air-void distribution and their interconnectivity combined with the aggregate packing was shown to have a significant effect on age hardening (Paper IV). It was shown that focusing only on the percentage of air-void as the main predictive ageing parameter may lead to an erroneous conclusion and non-optimal predictions of long-term behavior. To replace such approaches, a new way to predict the long-term ageing was proposed in this Thesis, utilizing the found influences of mixture morphology and fundamental mechanism. Though additional mechanisms and non-linear coupling between them may be still needed to reach the ‘ultimate’ ageing prediction model, the current model was found to be a significant improvement to the currently used methods and may lead the way towards further enhancing the fundamental knowledge towards asphalt mixture ageing (Paper V).

QC 20140509

Стилі APA, Harvard, Vancouver, ISO та ін.

Michon, Laurent. "Contribution à l'étude structurale de bitumes routiers. Analyses spectroscopiques et étude par les réseaux de neurones." Dijon, 1996. http://www.theses.fr/1996DIJOS051.

Повний текст джерела

Анотація:

Notre contribution à l'étude des bitumes routiers, peut se résumer de la façon suivante: la spectroscopie de résonance magnétique nucléaire (RMN) du carbone-13 s'est révélée être un bon outil dans l'analyse structurale des bitumes. Un nouveau jeu de paramètres moléculaires moyens simples a été proposé. L'analyse de bitumes ayant et après oxydation a conduit à proposer que l'aromatisation des structures peut se faire selon trois voies principales. L'analyse fonctionnelle des bitumes a porté sur l'étude des fonctions oxygénées et soufrées. Dans le premier cas, il a été montré que la méthode d'analyse par RMN du silicium-29 permet d'étudier de manière qualitative et quantitative les produits qui possèdent de faibles teneurs en oxygène. Le contenu acide total a été déterminé et corrélé à l'évolution des bitumes au cours de l'oxydation. Dans le second cas, les études menées par X-ray absorption near edge structure ont permis de proposer la répartition en fonction de type sulfure et de type thiophénique dans le bitume. Concernant l'oxydation du soufre, cette étude a permis de montrer que la proportion du soufre subissant l'oxydation n'est que de 1%. Les réseaux de neurones ont permis d'établir des corrélations structure-propriété dans des milieux chimiquement complexes comme les bitumes. Il ressort que les paramètres moléculaires moyens servent de base dans la prédiction des propriétés rhéologiques mesurées à froid et qu'elles sont dépendantes des chaines aliphatiques.

Стилі APA, Harvard, Vancouver, ISO та ін.

Більше джерел

Книги з теми "Bitumen Analysis"

Liu, Joseph K., and Harry E. Gunning. Syncrude analytical methods manual for bitumen upgrading. Edmonton, Alta: Alberta Oil Sands Technology and Research Authority, 1991.

Знайти повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Wallace, D., and Andrew Pickard. A review of analytical methods for bitumens and heavy oils. Edited by Alberta Committee on Oil Sands Analysis and Alberta Oil Sands Technology and Research Authority. Edmonton: Alberta Oil Sands Technology and Research Authority, 1988.

Знайти повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Strausz, Otto P. The chemistry of Alberta oil sands, bitumens and heavy oils. Calgary, Alta: Alberta Energy Research Institute, 2003.

Знайти повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

D, Galʹpern G., and Institut neftekhimicheskogo sinteza im. A.V. Topchieva., eds. Metody issledovanii͡a︡ sostava organicheskikh soedineniĭ nefti i bitumoidov. Moskva: "Nauka", 1985.

Знайти повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Mercer, Gregory Eugene. The distribution and association of trace elements in the bitumen, kerogen and pyrolysates from New Albany oil shale. 1992.

Знайти повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

John, Parnell, Kucha H, and Landais P, eds. Bitumens in ore deposits. Berlin: Springer-Verlag, 1993.

Знайти повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Parnell, John, Henryk Kucha, and P. Landais. Bitumens in Ore Deposits. Springer, 2012.

Знайти повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

1923-, Hosterman John W., ed. Chemistry and mineralogy of natural bitumens and heavy oils and their reservoir rocks from the United States, Canada, Trinidad and Tobago, and Venezuela. [Washington, D.C.]: U.S. G.P.O., 1990.

Знайти повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Peckham, Stephen Farnum. Solid Bitumens, Their Physical and Chemical Properties and Chemical Analysis: Together with a Treatise on the Chemical Technology of Bituminous Pavements. Creative Media Partners, LLC, 2018.

Знайти повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Частини книг з теми "Bitumen Analysis"

Penki, Ramu, Banna Madhavi, K. Akhilesh Patnaik, and A. Sri Divya. "A Scientometric Analysis on Bio-Bitumen." In Lecture Notes in Civil Engineering, 607–19. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-6557-8_50.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Lu, Xiaohu, Peter Sjövall, Hilde Soenen, Johan Blom, and Martin Andersson. "Visualization and Chemical Analysis of Bitumen Microstructures." In RILEM Bookseries, 168–73. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-00476-7_27.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Sirsikar, Pankaj V., Chandrakant R. Sonawane, Ashok Tanna, and Manoj Yadav. "Thermal Design and Numerical Analysis of Transportable Bitumen Storage Tank for Improved Liquefied Bitumen Supply." In Lecture Notes in Mechanical Engineering, 499–509. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6416-7_46.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Borinelli, J. B., J. Blom, G. Jacobs, D. Hernando, W. Van den Bergh, and C. Vuye. "Microstructural and rheological analysis of crumb rubber modified bitumen." In Green and Intelligent Technologies for Sustainable and Smart Asphalt Pavements, 599–604. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003251125-96.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Mirwald, Johannes, Hinrich Grothe, Bernhard Hofko, Daniel Maschauer, and Daniel Steiner. "Analysis of Bitumen and PmB Using Fluorescence Spectroscopy and Microscopy." In RILEM Bookseries, 139–44. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-00476-7_22.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Hadole, H. P., and M. S. Ranadive. "FTIR Analysis for Ageing of HDPE Pyro-oil Modified Bitumen." In Recent Trends in Construction Technology and Management, 1311–28. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2145-2_96.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Bottelin, Caroline, Marc Chardonnet, Philippe Marchal, Lazaros Vozikis, and Yvong Hung. "Rheometrics Framework Analysis to Capture Self-assemblies Organization in Bitumen Matrix." In RILEM Bookseries, 1627–33. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-46455-4_206.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Pszczola, Marek, Dawid Rys, and Piotr Jaskula. "The Application of the Superpave Method of Climatic Zones Analysis in Poland with Regard to Bitumen Performance Grading." In Proceedings of CEE 2019, 361–68. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-27011-7_46.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Gize, A. P. "The Analysis of Organic Matter in Ore Deposits." In Bitumens in Ore Deposits, 28–52. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-85806-2_3.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Mitra, Sourav, Saurav Pal, and Pritam Aitch. "Reliability Analysis on Fatigue and Rutting Failures of Flexible Pavement with the Variation of Surrounding Atmospheric Condition and Mix Design of Bitumen." In Lecture Notes in Civil Engineering, 607–17. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6090-3_45.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Тези доповідей конференцій з теми "Bitumen Analysis"

Komperød, Magnus, Bjørn Konradsen, and Roger Slora. "Viscoelastic Large Strain Model of Bitumen Used for Corrosion Protection in Subsea Cables and Umbilicals." In ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/omae2015-41135.

Повний текст джерела

Анотація:

Bitumen is used as anticorrosion material to protect armor wires in subsea cables and umbilicals. Establishing bitumen’s viscoelastic properties is essential for developing analytical models of how bitumen influences the cable’s mechanical properties, in particular the bending stiffness. A new laboratory instrument has been developed for establishing the viscoelastic properties of bitumen subject to equally large strains as in real-life cables. This paper presents the basic principle of the new instrument and derives how to calculate bitumen’s viscoelastic properties from the measurements logged by the instrument. The paper also models bitumen’s viscoelastic properties as function of strain amplitude, strain frequency, and bitumen temperature, using multi-variable data analysis. These models show that the viscoelastic properties are highly temperature dependent. Bitumen’s shear stress / shear strain amplitude ratio grows with increasing rate as the temperature decreases.

Стилі APA, Harvard, Vancouver, ISO та ін.

Somé, Sâannibè-Ciryle, Vincent Gaudefroy, and Didier Delaunay. "Use of Inverse Method for Bonding Quality Assessment Between Bitumen and Aggregates Under Asphalt Mixes Manufacturing Conditions." In ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/esda2012-82361.

Повний текст джерела

Анотація:

In roads building, classical asphalt mix manufacturing commonly requires the heating (at 160°C) and the complete drying of aggregates. The induced energy cost has opened the way to develop alternatives processes and materials with low energy/carbon materials such as Warm Mix Asphalt (WMA). In warm mixes processes, aggregates manufacturing temperatures are different and lower than the Hot Mix ones. However, manufacturing temperature reduction can locally lead to poor bonding between bitumen and aggregate during the mixing step, due to the bitumen viscosity increasing, although bonding quality measurement remained a challenge. The aim of our study was to presents two thermal inverse methods for bonding quality assessment. These methods are based on Thermal Contact Resistance (TCR) assessment between bitumen and aggregate, during asphalt mix manufacturing. The experimental test principle consisted of heating both bitumen and cylindrical aggregate to their manufacturing temperatures (over 100°C) and to put them into contact thanks to a special experimental device. According to initial samples temperatures, heat transfer occurs from the bitumen to the aggregate. Two variants of the sequential Beck’s method were used to solve the inverse heat conduction problem. The first one consisted of determining the TCR from heat flux and temperatures and the second one consisted of identifying directly the TCR. The TCR values were interpreted as bonding quality criteria. Results showed low sensitivity to temperature measurement noise in the second variant of the inverse method. Moreover our study showed that bonding quality depends on bitumen and aggregate temperatures. The higher the component’s temperatures, the lower the TCR values and better is the bonding quality.

Стилі APA, Harvard, Vancouver, ISO та ін.

F. Sokolova, T., D. A. Kozhevnikov, N. Ye. Lazutkina, and G. A. Petrov. "New Log Analysis Technology for Evaluating Bitumen Reservoirs." In 57th EAEG Meeting. Netherlands: EAGE Publications BV, 1995. http://dx.doi.org/10.3997/2214-4609.201409748.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Gražulytė, Judita, and Audrius Vaitkus. "Analysis of Methods and Criteria for Evaluation of Bitumen Performance at Low Temperatures." In Environmental Engineering. VGTU Technika, 2017. http://dx.doi.org/10.3846/enviro.2017.137.

Повний текст джерела

Анотація:

Thermal cracking is the dominant pavement failure in the cold regions. After each winter, the newly appeared cracks have to be sealed. However, after a few years depending on the sealing method the previously sealed cracks have to be resealed. It results in high maintenance budget and human resources. The appropriate bitumen selection on the basis of bitumen performance at low temperatures can reduce the effect of thermal cracking. For this purpose, number of methods are developed such as Fraass test, bending beam rheometer (BBR) test, direct tension (DT) test, asphalt binder cracking device (ABCD), dynamic shear rheometer using 4 mm diameter parallel plates (4-mm DSR) test, single-edge-notched bending (SENB) test, doubleedge- notched tension (DENT) test and spectral analysis of acoustic emission (AE). This paper presents the analysis of different tests for the evaluation of the bitumen performance at low temperatures, highlights their advantages and disadvantages and gives their limiting criteria. These limiting criteria are usually used to determine the critical cracking temperature, which is defined as the lowest temperature at which bitumen can withstand induced thermal stresses.

Стилі APA, Harvard, Vancouver, ISO та ін.

Gumustekin, Sevket, Ali Topal, and Burak Sengoz. "Texture analysis on modified bitumen images using Gabor features." In 2008 IEEE 16th Signal Processing, Communication and Applications Conference (SIU). IEEE, 2008. http://dx.doi.org/10.1109/siu.2008.4632627.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Lu, Zhao-feng, Zhao-yi He, Gang Huang, and Qin Min. "Performance Analysis on Modified Bitumen by Nature Rock Asphalt." In Tenth International Conference of Chinese Transportation Professionals (ICCTP). Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41127(382)354.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Котлярский, Э. В., E. V. Kotlyarskiy, Н. Ю. Челышева, N. Yu Chelysheva, А. Л. Рамос, and A. L. Ramos. "COMPARATIVE ANALYSIS OF TECHNICAL REQUIREMENTS FOR VISCOUS ROAD BITUMEN." In International Scientific and Practical 65th anniversary conference BSTU them. V.G. Shukhov "HIGH-TECH TECHNOLOGIES AND INNOVATIONS (XXIII scientific readings)". Belgorod State Technological University named after V.G. Shukhov, 2019. http://dx.doi.org/10.12737/conferencearticle_5cecedc2ed01f9.09024503.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Ozum, Baki. "Solvent Versus Surfactant Co-Injection with Steam to Improve Efficiency of Steam Assisted Bitumen and Heavy Oil Recovery Processes." In SPE Western Regional Meeting. SPE, 2022. http://dx.doi.org/10.2118/209338-ms.

Повний текст джерела

Анотація:

Abstract In Alberta, Canada bitumen is produced by SAGD and CSS methods at about 1.5x106 barrels per day capacity. Efficiency of these operations is measured by steam-to-bitumen mass ration, which is reported in the range of 2.6 to 5. Oil industry has invested on solvent such as light hydrocarbons co-injection with steam to reduce SBR, speculating that solvent would reduce bitumen viscosity and increase Darcy mobility of bitumen in the reservoir, which has resulted limited commercial success. In majority of these studies, effect of solvent co-injected with steam on bitumen-water interfacial tension, therefore on Darcy permeability was ignored. Our laboratory has been studying to increase Darcy permeability of bitumen by reducing bitumen-water interfacial tension. For this purpose two methods were investigated: (i) surfactant species were produced by in-situ sulfonation-sulfoxidation of bitumen asphaltenes by co-injecting a trace amount of gaseous sulfur dioxide (SO2) with steam; and (ii) co-injection of biodiesel (BD) as a surfactant additive, with steam at under 2 g-BD/kg-bitumen dosages, which corresponds to under 0.32 kg-BD/bbl-bitumen, or under 0.67 kg-BD/ton-steam if SBR is 3:1. Bitumen recovery tests were also made to compare performances of solvent versus surfactant co-injection with steam methods by operating the test apparatus in bath mode, which most likely stimulate the steam zone of the steam zone of the SAGD and CSS reservoirs. These tests showed that solvent co-injection potentially reduces bitumen recovery efficiency compared to steam-only methods. We wonder that the solvent co-injected with steam increases bitumen-water interfacial tension, increases slip velocity at bitumen-water interface and reduces Darcy permeability of bitumen. Experimental observations supported with fluid dynamics analysis of two immiscible fluids with slip boundary condition at the interface of two fluids were encouraging to expand our research in BD-water emulsions flooding for cold heavy oil recovery, CHOPS and Post CHOPS, and BD-solvent-water emulsions flooding for extra viscous heavy oil, and bitumen production from high permeability reservoirs, which would eliminate demand for steam. Experimental data on bitumen viscosity, bitumen-water interfacial tension and potential effects of solvent and surfactant co-injection with steam on commercial steam assisted bitumen and heavy oil recovery operations will be discussed.

Стилі APA, Harvard, Vancouver, ISO та ін.

Xia, T. X., and M. Greaves. "Downhole Upgrading Athabasca Tar Sand Bitumen Using THAI - SARA Analysis." In SPE International Thermal Operations and Heavy Oil Symposium. Society of Petroleum Engineers, 2001. http://dx.doi.org/10.2118/69693-ms.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Steyn, Wynand Jvd M. "Analysis of Bitumen Properties during Ageing Using Atomic Force Microscopy." In GeoHunan International Conference 2011. Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/47634(413)4.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Звіти організацій з теми "Bitumen Analysis"

Pelechaty, S. M., J. P. Grotzinger, F. Goodarzi, L. R. Snowdon, and V. Stasiuk. A preliminary analysis of middle Proterozoic karst development and bitumen emplacement, Parry Bay Formation [dolomite], Bathurst Inlet area, District of Mackenzie. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1988. http://dx.doi.org/10.4095/122645.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Cesar, J. R., and O. H. Ardakani. Organic geochemistry of the Montney Formation: new insights about the source of hydrocarbons, their accumulation history and post accumulation processes. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329788.

Повний текст джерела

Анотація:

This study consists of a non-traditional molecular and stable isotope approach to analyze organic matter (soluble bitumen and produced oil/condensate) from the Montney Formation low-permeability reservoirs, with the purpose of identifying source(s) of hydrocarbons, accumulation history and post accumulation processes. The same approach bases on the distribution of compound classes such as aromatic carotenoids, polycyclic aromatic hydrocarbons (PAHs), bicyclic alkanes, and oxygen-polar compounds. The geochemical screening has been enhanced with performing compound specific isotope analysis (CSIA) of n-alkanes and selected aromatic hydrocarbons. Widely spread PAHs, the presence of molecular indicators of euxinia, and hydrocarbon mixtures identified using CSIA profiles, are some of the key findings from this research, which will improve our understanding of the Montney petroleum system(s).

Стилі APA, Harvard, Vancouver, ISO та ін.

Geochemical analysis (total organic carbon, rock-eval, bitumen geochemistry, vitrinite reflectance) from the Ikpikpuk #1, W.T. Foran #1, J.W. Dalton #1, Seabee #1, Sentinel Hill, Titaluk Test #1, N. Inigok #1, Drew Pt. #1, Gubik Test #1, Inigok #1 and Oumalik Test #1 wells. Alaska Division of Geological & Geophysical Surveys, August 2009. http://dx.doi.org/10.14509/20301.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Ми пропонуємо знижки на всі преміум-плани для авторів, чиї праці увійшли до тематичних добірок літератури. Зв'яжіться з нами, щоб отримати унікальний промокод!