Готові списки джерел за темами / Modified bituminous binders

Добірка наукової літератури з теми "Modified bituminous binders"

Автор: Grafiati
Опубліковано: 14 березня 2023

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Статті в журналах з теми "Modified bituminous binders"

1

Lakshman Singh, Khwairakpam, and Debjani Panda. "Study on Strength Characteristics Improvement of Polyethylene Modified Bituminous Concrete Mixes." Key Engineering Materials 803 (May 2019): 216–21. http://dx.doi.org/10.4028/www.scientific.net/kem.803.216.

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The present study shows an investigation on improvement of bituminous binder and its mixes using modified binders with different percentage (1% to 7%) of domestic waste polyethylene (PE).The temperature susceptibility and penetration index (PI) of the modified binders were calculated. It is observed that PI value of modified binder is found higher than unmodified binder. The strength characteristics in terms of Marshall Stability and moisture susceptibility expressed in terms of indirect tensile strength ratio (ITSR) of bituminous concrete were determined in the present study. Marshall stability of the bituminous mixture containing 3% PE increased by 34.2% as compare to mixture containing unmodified binder. The addition of 3% PE to neat bitumen, results in an increase of 20% in indirect tensile strength ratio. Using PE modified binder in bituminous concrete mixes increases stability, indirect tensile strength which turn in provide better resistance against permanent deformation.
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Andreev, A. A., P. M. Tyukilina, V. A. Tyshchenko, N. M. Maximov, V. A. Pilshchikov, and D. V. Leshchenko. "Synergetic effect in modification of oxidized road bitumens of different group composition." World of petroleum products 03 (2022): 12–19. http://dx.doi.org/10.32758/2782-3040-2022-0-3-12-19.

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The physico-chemical-rheological properties of the asphalt binder are critical to the long-term performance of the asphalt pavement infrastructure. The objectives of this investigation are to characterize the physico-rheological properties of unmodified pure and polymer-modified bituminous binders using rheological performance tests. The rheological properties of three pure oxidized bitumen, three SBS with sulfur-modified bituminous binders, and three bituminous binders modified with SBS+S+PPA were studied in this work. Various amounts of styrene-butadiene-styrene (SBS), sulfur (S) and polyphosphoric acid (PPA) modifiers were added to the pure binder for this purpose. The tested physical properties of the bituminous binder include traditional penetration and softening temperature. Group composition studies (saturates, aromatics, tars and asphaltenes; SARA) were respectively conducted to quantify the chemical composition and structural properties of pure oxidized bitumen. A dynamic shear rheometer (DSR) was used to evaluate the durability (PG) of virgin, thin film oxidized (RTFO-aged) and pressure vessel (PAV-aged) bitumens. The resistance to rutting and fatigue failure was evaluated using the test for creep recovery after repeated loading (MSCR). A bending beam rheometer (BBR) was used to study the low temperature properties of bituminous binders. All modifiers have been found to improve the high temperature properties of clean asphalt. In addition, these modifiers have not been found to have a significant effect on the low temperature continuous grade of the binders.
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Wang, Cai, Zhang, Xu, and Yu. "Laboratory Investigation of Lignocellulosic Biomass as Performance Improver for Bituminous Materials." Polymers 11, no. 8 (July 29, 2019): 1253. http://dx.doi.org/10.3390/polym11081253.

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Lignocellulosic biomass has gained increasing attention as a performance modifier for bituminous material due to the vast amount available, its low cost and its potential to improve the durability of pavement. However, a comprehensive study concerning both the binder and mixture performance of modified bituminous material with lignocellulose is still limited. This research aims to evaluate the feasibility of applying lignocellulose as bitumen modifier by rheological, chemical and mechanical tests. To this end, two lignocellulosic biomass modified bituminous binders and corresponding mixtures were prepared and tested. The chemical characterization revealed the interaction between lignocellulosic biomass and bitumen fractions. Rheological test results have shown that lignocellulosic modifiers improve the overall performance of bituminous binder at high, intermediate and low temperatures. The findings obtained by mixture mechanical tests were identical to the binder test results, proving the positive effect of lignocellulosic biomass on overall paving performance of bituminous materials. Although lignocellulosic modifier slightly deteriorates the bitumen workability, the modified bitumen still meets the viscosity requirements mentioned in Superpave specification. This paper suggests that lignocellulosic biomass is a promising modifier for bituminous materials with both engineering and economic merits. Future study will focus on field validation and life cycle assessment of bituminous pavement with lignocellulosic biomass.
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Radziszewski, Piotr, and Karol J. Kowalski. "QUALITY ASSESSMENT OF BITUMINOUS BINDERS BASED ON THE VISCOELASTIC PROPERTIES: POLISH EXPERIENCE." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 20, no. 1 (March 10, 2014): 111–20. http://dx.doi.org/10.3846/13923730.2013.843586.

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Анотація:
Construction of modern and durable bituminous pavements requires high quality bituminous binder, aggregates and additives. The main objective of this paper was to analyse and compare viscoelastic properties of unmodified and polymer modified bitumens produced in Poland, Europe, in order to assess their quality. In this paper there are presented results of bituminous binder European classification tests (penetration, softening point and Fraass breaking point) as well as rheological test results conducted over a wide range of temperatures. In addition, image analysis of the microstructure of selected polymer modified bitumens is also presented. Based on the analysis it was concluded that although bituminous binders complies with European specification requirements, they are significantly different in terms of their rheological properties. It was found that regardless of binder producer, bituminous binder within the same hardness group exhibit different low and high temperature properties.
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Ayyar, Pugazhenthi, Sundaram Lakshmi, and Ajithkumar Padmarekha. "Effect of Rest Period and Temperature on the Estimation of Fatigue Life of Bituminous Mixture." Baltic Journal of Road and Bridge Engineering 17, no. 2 (June 27, 2022): 25–46. http://dx.doi.org/10.7250/bjrbe.2022-17.559.

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This paper reports the experimental investigation conducted to study the influence of temperature and rest period on different methods of estimation of fatigue life of the bituminous mixture. Four-point beam bending tests were conducted on the bituminous mixture prepared with one unmodified binder and two different modified binders (crumb rubber modified and elastomer modified binder). The test was conducted at 20 °C and 0 °C using continuous loading and a rest period between two load cycles. The fatigue life was estimated using stiffness modulus and energy dissipation. The performance of three different bituminous mixtures was ranked—ranking a bituminous mixture based on the fatigue performance varied with temperature and loading condition. In addition, the ranking also varied with different post-processing methods adopted.
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Vysotskaya, Marina, Anastasia Kurlykina, Artem Shiryaev, Anna Tkacheva, and Dmitry Litovchenko. "Modification of bituminous binders for guss asphalt." E3S Web of Conferences 274 (2021): 02011. http://dx.doi.org/10.1051/e3sconf/202127402011.

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Over the past few years, the research of the use of cast asphalt concrete mixtures in the upper layers of the coating of bridge structures has been actively carried out. The experience gained allows us to conclude that one of the most common effective ways to improve the durability and thermal stability of cast asphalt concrete pavements is the use of modified bituminous binders. The modified bitumen part of cast asphalt concrete acts as a medium capable of initiating the «self-healing» of the composite, independently eliminating structural defects. This study aims to research the rheological characteristics of modified bituminous binders. Bitumen grade BND 50/70 was used as a raw material in the study; the following types of additives were used as its modifiers: rubber modifier (RM), EVATHERM and SBS. The optimal concentrations of the proposed additives for modification allowing to achieve the effect of structuring the mastic component of cast asphalt concrete with insignificant increases in the temperatures of mixing and compaction of mixtures based on them have been revealed.
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Cui, Pei Qiang, Hong Hua Zhang, and Shao Peng Wu. "Influence of High-Temperature Volatilization on Performance of Bituminous Binder." Key Engineering Materials 599 (February 2014): 164–67. http://dx.doi.org/10.4028/www.scientific.net/kem.599.164.

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Two bituminous binders were used in this research to investigate the influence of high-temperature volatilization on the binder performance. The results indicated that at higher temperature, the weight of bituminous binder reduced and the reducing rate was decreasing with heating time. After certain volatilization period, the softening points of bituminous binder increased while the penetration reduced significantly. The volatilization condition of oxygen and vacuum did not have significant differences on the asphaltene and colloid. The bitumen binder modified with 3% of Layered double hydroxides (LDHs) would reduce the amount of VOC fumes.
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P, Praveen Kumar, and Dr Kiran Kumar B V. "Performance Evaluation of Flexible Pavements with Modified Bitumen Binders." International Journal for Research in Applied Science and Engineering Technology 10, no. 4 (April 30, 2022): 1496–501. http://dx.doi.org/10.22214/ijraset.2022.41537.

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Abstract: In India majority of roads are being constructed by flexible pavements. But the performance of the pavement largely depends on quality and type of materials used, Construction methodology adopted, temperature, climatic conditions etc. Because of these variations in the mentioned parameters, pavements undergo distress/ failure. The different types of failure in flexible pavement are Rutting, Shovelling, Edge breaks, Cracks, Slippage etc. Rutting is a common phenomenon which occurs in flexible pavement surface due to overloading of vehicles and repeated application of wheel load. Rutting is defined as channelized depression in the pavement surface along wheel path due to heavy repetitive traffic load. Design of bituminous paving mixes greatly effects the performance of pavements. In the present laboratory research work, conventional bitumen is used in wearing/ surface course and Modified Bitumen is used in binder course of the layer. Pavement layers are constructed/casted in an Indigenously designed, developed and fabricated equipment called Roller Compactor cum Rut Analyzer (RCRA) and Rutting test was performed. The overall objective is to compare the Marshall properties of the conventional and Modified Bituminous mix and to study the rutting performance of these bituminous mixes. Results shows that bituminous mixes prepared with Modified Bitumen/Binders has a very high Marshall Strength and offers greater resistance to rutting Keywords: Modified Bitumen, Bituminous Concrete (BC), Dense Bituminous Macadam (DBM), Marshall Stability, Roller Compactor cum Rut Analyzer (RCRA), Crumb Rubber Modified Bitumen (CRMB)
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P, Praveen Kumar, and Dr Kiran Kumar B V. "Performance Evaluation of Bituminous Mixes with Modified Binders using Roller Compactor cum Rut Analyzer (RCRA)." International Journal for Research in Applied Science and Engineering Technology 10, no. 4 (April 30, 2022): 1502–7. http://dx.doi.org/10.22214/ijraset.2022.41551.

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Анотація:
Abstract: In India majority of roads are being constructed by flexible pavements. But the performance of the pavement largely depends on quality and type of materials used, construction methodology adopted, temperature, climatic conditions etc. Because of these variations in these parameters, pavements undergo distress/ failure. The different types of failure in flexible pavement are Rutting, Shovelling, Edge breaks, Cracks, Slippage etc. Rutting is a common phenomenon which occurs in flexible pavement surface due to overloading of vehicles and repeated application of wheel load. Rutting is defined as channelized depression in the pavement surface along wheel path due to heavy repetitive traffic load. Design of bituminous paving mixes greatly effects the performance of pavements. In the present laboratory research work, conventional bitumen is used in wearing/ surface course and Modified Bitumen is used in binder course of the layer. Pavement layers are constructed/casted in an Indigenously designed, developed and fabricated equipment called Roller Compactor cum Rut Analyzer (RCRA) and Rutting test is performed. The Rutting test is carried out on wearing course of bituminous layer (BC Gr-II with VG-30) and by adopting Binder course layer namely DBM Gr-II prepared with two different types of binders namely VG-30, SBS-70. The overall objective is to compare the Marshall properties of the conventional and Modified Bituminous mix and to study the rutting performance of these bituminous mixes.. Results shows that bituminous mixes prepared with Modified Bitumen/Binders (SBS-70) has a very high Marshall Strength and offers greater resistance to rutting. Keywords: Modified Bitumen, Bituminous Concrete (BC), Dense Bituminous Macadam (DBM) , Marshall Stability, Roller Compactor cum Rut Analyzer (RCRA), Styrene-Butadiene-Styrene (SBS).
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Moumita, Naskar, Tapan Kumar Chaki, and K. Reddy Sudhakar. "Effect of Recycled EVA as Modifier on the Various Properties of Bituminous Binder for Road Application." Advanced Materials Research 214 (February 2011): 339–43. http://dx.doi.org/10.4028/www.scientific.net/amr.214.339.

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Recycled ethylene vinyl acetate (REVA) modified bituminous binders can be used in pavement construction for improved durability and enhanced performance in resisting permanent deformation of bituminous layers. This paper reports the thermogravimetric studies conducted on REVA modified bitumen (REMB) binders. The activation energies were determined from thermogravimetric analysis (TGA) data using Kissinger method, which does not require knowledge of the reaction mechanism. The effect of different percentages of REVA addition, as modifier in neat bitumen on the rheological properties, surface energy and microstructure of the bitumen/ REVA blends has been investigated in this study, which ensured the successful modification of bitumen with REVA.
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Дисертації з теми "Modified bituminous binders"

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Burger, A. F. "Rheology of polymer modified binders : a comparative study of three binders and three binder/filler systems." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52438.

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Thesis (MEng)--University of Stellenbosch, 2001.
ENGLISH ABSTRACT: The use of polymer modified binders have increased drastically over the past twenty years. It is generally accepted that current empirical specification tests do not adequately characterise the improvement in binder properties when bitumen is modified with polymers. At the University of Stellenbosch, a programme was initiated to relate binder properties to asphalt mix performance. This study forms part of that programme. This study focuses on three binders and is an attempt to characterise binder properties fundamentally. The binders that were tested are: • 60/70 penetration grade bitumen • SBS modified 60/70 bitumen • Bitumen-Rubber Two rheometers were used to characterise the binder properties: • Sliding Plate Rheometer (SPR) • Dynamic Shear Rheometer (DSR) The Sliding Plate Rheometer was modified to allow testing at elevated temperatures. The modification is described in this thesis. Three types of testing were used to test the binders: • Creep tests (SPR and DSR) • Dynamic tests (Strain and Frequency Sweeps - DSR) • Flow tests (high temperature viscosity tests - DSR) The results of the tests were used to characterise differences between the binders. Shear susceptibility lines were plotted and viscosities calculated from the creep test results; Master Curves and Black Diagrams were plotted from frequency sweep results; flow test results were used to characterise high temperature behaviour. A further development in the asphalt industry is the move towards the development of performance based specifications. A programme has been initiated in this regard and this study forms part of the programme. As a step towards the development of performance based specifications filler was included in this study. BinderlFiller systems were subjected to the same test programme the binders were, to characterise the influence on binder properties of filler addition. Some of the conclusions that were drawn at the end of the study are: • Polymer modification improves binder properties related to rutting. • Filler addition does not affect binder properties negatively. • Shear rate is very important during production of asphalt mixes and construction of asphalt layers containing polymer modified binders.
AFRIKAANSE OPSOMMING: Die gebruik van polimeer gemodifiseerde bitumen het drasties toegeneem oor die afgelope twintig jaar. Dit word algemeen aanvaar dat die huidige empiriese spesifikasie toetse nie die verbetering in bindmiddeleienskappe van polimeer modifisering aanvaarbaar karakteriseer nie. 'n Program is geïnisieer by die Universiteit van Stellenbosch om 'n verband te vind tussen bindmiddeleienskappe en asfaltmengseleienskappe. Hierdie studie vorm deel van die program. Hierdie werk fokus op drie bindmiddels en is 'n poging om die bindmiddeleienskappe fundamenteel te karakteriseer. Die bindmiddels wat gebruik is in hierdie werk, is: • 60/70 penetrasiegraad bitumen • SBS gemodifiseerde 60/70 bittimen • Bitumen-Rubber Twee reometers is gebruik om bindmiddeleienskappe te karakteriseer: • Glyplaat Reometer (SPR) • Dinamiese SkuifReometer (DSR) Die glyplaat reometer is aangepas om toetse by hoër temperature te doen en die aanpassing wat gemaak is word in die tesis beskryf. Drie tipes toetse is uitgevoer om die bindmiddels mee te toets: • Kruiptoetse (SPR en DSR) • Dinamiese toetse (DSR) • Vloei toetse (DSR) Die resultate van die toetse is gebruik om die verksille tussen die bindmiddels te kwalifiseer. Verskillende grafieke en figure is getrek van die resultate om die onderskeie bindmiddels te karakteriseer. Die beweging weg van empmese spesifikasies na werkverrigting gebaseerde spesifikasies in die asfalt industrie is 'n verder nuwe ontwikkeling. 'n Program is geïnisïeer ten opsigte hiervan en hierdie werk vorm deel van die program. As 'n stap in die ontwikkeling van die werkverrigting gebaseerde spesifikasies is 'n vuIler ingesluit in die toetsprogram. Bindmiddel/vuIler stelsels is onderwerp aan dieselfde toetse waaraan die bindmiddels onderwerp is om die invloed van die vuIler op die bindmiddels te karakteriseer. Sommige van die gevolgtrekkings waartoe gekom is aan die einde van die tesis, is: • Polimeer modifisering verbeter bindmiddeleienskappe met betrekking tot wielsporing. • Die toevoeging van vuIler affekteer nie die bindmiddeleienskappe negatiefnie. • Die vervormingstempo is van groot belang wanneer asfaltmengsels gemeng en lae gebou word van mengsels wat polimeer gemodifiseerde bitumen bevat.
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2

Çelik, Osman Nuri. "The engineering properties and fatigue behaviour of asphaltic concrete made with waste shredded tyre rubber modified binders." Thesis, University of Leeds, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271237.

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MIGLIETTA, FABRIZIO. "Self-healing of bituminous binders: a methodological framework from experimental testing to advanced modeling." Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2942112.

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4

VERCELLI, ARIANNA. "Reuse of automotive paint sludge in road pavements." Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2675002.

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Automotive industries produce from 2.5 to 5 kg of paint sludge for each car, thus facing relevant expenses required for its management. For this reason, since the 90’s major automotive companies have tried to find alternative solutions for a more economic and sustainable management of such a waste. In order to provide a solution, F.C.A. Italy S.p.A. funded a research project in collaboration with the Politecnico di Torino, aiming to develop and implement the process for the production of Paint Sludge Modified Binders (PSMBs) on industrial level. In particular, laboratory activities included physical and chemical characterization of fourteen paint sludge samples different for type and origin. Selected paint sludge samples were mixed with two different neat binders by adopting variable dosage. Then, the expected field performances of PSMBs were evaluated by means of a complete rheological, mechanical and environmental characterization. The last step was the production of PSMB mixtures, the properties of which were assessed in terms of mechanical performances and environmental aspects. In order to check the environmental feasibility of the project, a preliminary life cycle assessment was developed based on a case study. Finally, the project was implemented on full scale through the construction of a trial section, in which PSMB mixtures were used for a wearing course layer. Results demonstrated that the use of automotive paint sludge as modifier for bituminous binders is a feasible and environmental sustainable alternative to disposal in landfills and incineration. Despite the different effects produced by paint sludge as a function of their type, they do not alter significantly the behaviour of neat binder and, for this reason, no specific prescriptions are required to adapt equipment and procedures commonly used for laboratory testing and construction of bituminous layers. However, some recommendations are needed to avoid phase separation during storage and reflective cracking during service life. Furthermore, particular attention must be paid on the choice of the correct temperature at which paint sludge is pre-treated in order to control gaseous emissions during mixing and laying.
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Ágústsson, Arnar. "Fish oil in Icelandic road constructions. : A case study of bituminous binder mixtures modified with bio-oil." Thesis, KTH, Väg- och banteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-149535.

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In this thesis an extensive background study on the use of bio-oil modified binder, used in surface dressings in Iceland, was carried out. Surface dressings, or chip seals, are paved by first spraying out binder and then distributing aggregates over the surface before compaction. The bio-oil, most notably fish oil ethyl ester or rape seed oil, is included in a binder mixture to lower its viscosity, enabling the binder to be sprayed out at a lower temperature than unmodified bitumen. In January 2013, severe bleeding of binder was noticed on road sections paved with bio-oil modified surface dressings in the northern part of Iceland. Following the bleeding, the Icelandic Road and Coastal Administration (IRCA) sent samples of the sections in question, as well as binder samples, for testing at the laboratory of Highway and Railway Engineering at KTH Royal Institute of Technology (KTH) in Stockholm, Sweden. The conclusions of that study were that the fish oil ethyl ester was highly polar and had solubility issues with the bitumen. This was found to have led to the fish oil separating from the binder mixture and covering the stones, preventing bonding between aggregates and binder [1]. The laboratory tests in this thesis extend on the aforementioned research. Through the background investigation it was found thatWetfix N, an adhesion promoter, was used in the binder mixture to facilitate bonding to the aggregates. Based on these findings, previous work and field experience in Iceland, two sample sets were created. The first sample set included 7.5% of either fish oil ethyl ester or rape seed oil by weight, while the second set included 4% of the same bio-oils by weight. To determine the effect of the adhesion promoter, all samples were tested with and without Wetfix N. Furthermore, all samples were put through a short-term aging treatment to simulate the process during mixing and paving, and tested again. The findings of this study suggest that the fish oil ethyl ester is more suitable for road constructions, compared to the rape seed oil, and that adhesion promoter should always be included when paving surface dressings in Iceland. Furthermore, the samples tested cannot be recommended for field use due to high polarity in the sample with a fish oil concentration of 7.5% and too high viscosity in the sample which includes 4% of fish oil. Therefore, it can be said that the upper and lower limits have been narrowed to the range between the two concentrations tested. To better understand the properties and behavior of the sample mixtures, a complete adhesion test with aggregates is advisable. Viscosity testing of samples which include between 4.5% and 7% of fish oil by weight are recommended and the mixture with the lowest concentration that passes IRCA’s guidelines for spraying viscosity at a desired temperature should be used in practice.
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Книги з теми "Modified bituminous binders"

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Bonaquist, Ramon F. (Ramon Francis), National Research Council (U.S.). Transportation Research Board, National Cooperative Highway Research Program, American Association of State Highway and Transportation Officials, and United States. Federal Highway Administration, eds. Investigation of short-term laboratory aging of neat and modified asphalt binders. Washington, D.C: Transportation Research Board, 2012.

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2

Katamine, Nidal Murdi Abdullah. Creep and fatigue behaviour of bituminous mixes with and without an SBS modified binder. Birmingham: University of Birmingham, 1989.

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Частини книг з теми "Modified bituminous binders"

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Kuznetsov, D. A., A. V. Kurlykina, A. O. Shiryaev, and D. P. Litovchenko. "Influence of Modified Bituminous Binders on the Properties of Stone Mastic Asphalt." In Lecture Notes in Civil Engineering, 287–93. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-54652-6_43.

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Muhammed Rinshad, K., M. Sivakumar, and M. V. L. R. Anjaneyulu. "Effect of Short-Term Ageing on Mechanical Characteristics of Modified Bituminous Binders." In Proceedings of the Sixth International Conference of Transportation Research Group of India, 41–55. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-3505-3_4.

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Vijayan, Vishnu, Jeevan Mathew Tharayil, R. Rakhil Krishna, Jiji Saji, Divya S. Shaji, and G. Lakshmi. "Sustainable Bituminous Pavement: A Study on Low-Density Polymer Modified Bituminous Binder." In Lecture Notes in Civil Engineering, 435–46. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-6557-8_35.

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Polacco, G., S. Filippi, M. Paci, S. Markanday, F. Merusi, and F. Giuliani. "Fuel resistance of bituminous binders." In Polymer Modified Bitumen, 336–65. Elsevier, 2011. http://dx.doi.org/10.1533/9780857093721.2.336.

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"Testing and appraisal of polymer modified road bitumens." In Bituminous Binders and Mixes, 25–50. CRC Press, 1998. http://dx.doi.org/10.1201/9781482271973-10.

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De Visscher, J., du Bus de Warnaffe, N. Pi√©rard, S.Vansteenkiste, E. Schelkens, and A. Leuridan. "New tests for polymer-modified binders." In Advanced Testing and Characterization of Bituminous Materials. CRC Press, 2009. http://dx.doi.org/10.1201/9780203092989.ch116.

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7

Abd, D., and H. Al-Khalid. "Fatigue performance characterization of warm-modified bituminous binders." In Bituminous Mixtures and Pavements VI, 105–13. CRC Press, 2015. http://dx.doi.org/10.1201/b18538-17.

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Ali, Shaban, Amiruddin Ismail, and Nur Yusoff. "Investigation on the physical and rheological properties of acrylate-styrene-acrylonitrile polymer and nano aluminum oxide modified asphalt binders nano aluminum oxide modified asphalt binders." In Bituminous Mixtures and Pavements VI, 81–87. CRC Press, 2015. http://dx.doi.org/10.1201/b18538-14.

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9

Bilski, M., and M. Słowik. "Impact of aging on Gilsonite and Trinidad Epuré modified binders resistance to cracking." In Bituminous Mixtures and Pavements VII, 65–70. CRC Press, 2019. http://dx.doi.org/10.1201/9781351063265-11.

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10

Słowik, M., and M. Bilski. "Modeling of creep and recovery of Gilsonite and Trinidad Epuré modified asphalt binders." In Bituminous Mixtures and Pavements VII, 75–80. CRC Press, 2019. http://dx.doi.org/10.1201/9781351063265-13.

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Тези доповідей конференцій з теми "Modified bituminous binders"

1

Radziszewski, Piotr, Michał Sarnowski, Jan B. Król, and Karol J. Kowalski. "Bitumen Binders Properties – Middle-European Climate Requirements." In Environmental Engineering. VGTU Technika, 2017. http://dx.doi.org/10.3846/enviro.2017.145.

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Анотація:
The article concerns the properties of bitumens and modified binders manufactured in Poland and used in Central and Eastern Europe for road paving. The aim of the article is to evaluate the properties of bituminous binders in terms of the climatic conditions of Central and Eastern Europe, taking the Polish climate as an example. In order to obtain a qualitative assessment of binders taking into account their role in the formation of road surface and its operating conditions in a wide range of temperatures, extensive research of the binders most commonly used in the construction of asphalt pavement were carried out. Aside from the results of standard tests, this article also presents the results of studies determining the functional properties of binders according to the SUPERPAVE method. Based on the results, it was found that the bituminous binders meet the requirements specified in European standards and technical guidelines. The temperature range of viscoelasticity of all the tested bituminous binders is very wide and exceeds 80 °C. However, in view of the Polish climate, an unfavourable phenomenon is a shift in the temperature range of viscoelasticity towards higher operating temperatures, at the same time lowering the binder performance at low temperatures.
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2

Valentin, Jan, Pavla Vacková, Nadia Maria Jose Tarifa, and Dimitra Giannaka. "Potential substitutions of traditional hydraulic binders in cold recycled mixtures using blast furnace slag." In 6th International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2021. http://dx.doi.org/10.5592/co/cetra.2020.1246.

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Cold recycling techniques are known for decades in pavement engineering as a suitable rehabilitation method mainly for existing asphalt pavements. Traditionally the most common solution is to use bituminous emulsion or foamed bitumen as a binder usually in combination with small amount of cement or lime as active fillers. In some countries cement or hydraulic road binders are preferred instead of bitumen based options since it is believed that hydraulic binders can increase the bearing capacity of cold recycled layer especially for pavements with underestimated structures which were designed >40 years ago. Based on that the Faculty of Civil Engineering, CTU Prague is for more than 10 years evaluating and developing further alternatives for the cement-based approach of cold recycled mixtures. In the past experience with fly-ashes or activated fly-ash based alternative binders were presented. Presently the focus is concentrating on the potentials of using blast furnace slags which are not generally usable for the cement industry (e.g. because of limited content of glassy compounds which are very typical mainly for granulated blast furnace slags). Air-cooled blast furnace slags were selected and activated by high-speed milling to get a material with latent hydraulic properties. This modified slag was applied in several options to cold recycled mixtures and standard strength and deformation tests were performed, including the determination of resistance to water immersion. Separately pastes based on used treated fine-grained slags were tested and evaluated. Data of the pastes are discussed jointly with the results for experimentally tested cold recycled mixtures.
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3

Mazurek, Grzegorz. "The Viscoelastic Characteristics of the Asphalt Concrete Modified with Different Synthetic Waxes Using a Modified Huet- Sayegh Model." In Environmental Engineering. VGTU Technika, 2017. http://dx.doi.org/10.3846/enviro.2017.141.

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The article presents the results of dynamic modulus tests carried on the asphalt concrete (AC16W). The sinusoidal load was applied to the samples in accordance with DTC-CY method. The neat bituminous binder (penetration grade 35/50) was modified by means two synthetic waxes, coming from the Fischer-Tropsch raction, with various molecular weights and softening point temperature results (hard and softer). The relaxation phenomenon in terms of changes in complex modulus and phase angle was evaluated using the modified Huet-Sayegh (2S2P1D). Estimated model parameters pointed out that the addition of the synthetic wax with the high (hard wax) and the low (softer wax) molecular weight raised the stiffness of the bituminous binder in relation to the reference bitumen 35/50. The application of the modified Huet-Sayegh model showed that the presence of the synthetic wax in the bitumen significantly affected the stiffness modulus of considered asphalt concretes. Basing analysis on Cole-Cole diagram it was found significant differences in the viscoelastic behaviour between the reference asphalt concrete and the asphalt concretes with synthetic waxes. In contrast, there were no significant differences between viscoelastic properties of tested asphalt concretes modified, used in the experiment, synthetic waxes. Furthermore, the sensitivity to the loading time of asphalt concretes containing both synthetic waxes was marginal.
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4

Sirin, O. "Investigation of problems in binder extraction from conventional and rubber modified asphalt mixtures." In Sixth International RILEM Symposium on Performance Testing and Evaluation of Bituminous Materials. RILEM Publications SARL, 2003. http://dx.doi.org/10.1617/2912143772.025.

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5

Tarta, Ciprian Rares, Nicolae Ciont, Mihai Iliescu, and Gavril Hoda. "Comparative study on using thermoplastic polymers to improve asphalt mixtures characteristics." In 6th International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2021. http://dx.doi.org/10.5592/co/cetra.2020.1170.

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Анотація:
Asphalt mixtures are composite building materials consisting of a mineral skeleton mixed with a bituminous binder, following a recipe which may also include fibres and/or polymers. The natural aggregates sustain the mixture structure, but adequate bitumen behaviour under various temperature and mechanically-induced stresses is also essential for the structural durability. Much research effort was directed towards improving the asphalt mixtures’ resistance to permanent deformation, implying an increase in mixture stiffness. At the same time, the mixture must exhibit enough low temperature cracking resistance. Six reference asphalt mixture samples were prepared and tested: mixtures M1 and M2 for base and binder courses respectively, as well as four mixtures for wearing courses (two asphalt concrete - AC1 and AC2, a stabilised mixture SMA containing fibres, and a porous mixture - PM). A 50/70 penetration grade bitumen was used to prepare all mixtures. In some cases, the obtained results did not meet the standard requirements. Bitumen or mixture modification is commonly performed by adding thermoplastic or elastomeric polymers, to improve the asphalt mixture behaviour. In this study, the effects of four thermoplastic polymers on the stiffness modulus, dynamic creep and fatigue resistance were studied. All tested polymers were introduced as grains during mixture preparation. Polymer addition led to a 31 % to 104 % increase in mixture stiffness modulus. A 220 % average increase in fatigue resistance was observed for mixtures M1 and M2. For the wearing course mixtures, creep resistance is expressed through a 99 % reduction in deformation speed and a 50 % to 80 % reduction in rut depth. The obtained results met the standard requirements. Using grain polymers is currently an effective alternative to polymer-modified bitumen, because of several technological and economical advantages. Polymer quality is essential to obtain adequate mixture characteristics.
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