Relevant bibliographies by topics / High strength concrete Effect of temperature on

Academic literature on the topic 'High strength concrete Effect of temperature on'

Author: Grafiati
Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "High strength concrete Effect of temperature on"

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Belaoura, Mebarek, Dalila Chiheb, Mohamed Nadjib Oudjit, and Abderrahim Bali. "Temperature Effect on the Mechanical Properties of Very High Performance Concrete." International Journal of Engineering Research in Africa 34 (January 2018): 29–39. http://dx.doi.org/10.4028/www.scientific.net/jera.34.29.

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This study aims at a better understanding of the behaviour of very high performance concretes (VHPC) subjected to high temperatures. The temperature increase within the concrete originating from the hydratation exothermic reaction of cement is emphasized by the mass effect of the structures and can lead to thermal variations of around 50°C between the heart and the structures walls. These thermal considerations are not without consequence on durability and the physical and mechanical properties of very high performance concrete, such as the compressive strength. This work is an experimental research that shows the effects of temperature on the mechanical properties of very high performance concrete (VHPC) and compares them with those of conventional concrete and HPC. Test specimens in usual concrete, HPC and VHPC are made, preserved till maturity of the concrete, and then subjected to a heating-cooling cycle from room temperature to 500°C at heating rate 0.1°C/min. Mechanical tests on the hot concrete and cooling (air and water) were realized. The results show that the mechanical characteristics of VHPC (density, compressive strength, tensile strength and elastic modulus) decrease with increasing temperature, but their strength remains higher than that of conventional concrete.
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Zhang, Nan, Juan Liao, Tao Zhang, Wen Zhan Ji, Bao Hua Wang, and Dong Hua Zhang. "The Effect of Mineral Admixtures on Mechanical Properties of High Performance Concrete at very Low Temperature." Applied Mechanics and Materials 584-586 (July 2014): 1509–13. http://dx.doi.org/10.4028/www.scientific.net/amm.584-586.1509.

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The effect of very low temperature on high performance concrete (HPC) mechanical properties is studied by using a reasonable testing method. The results show that the compressive strengths of concrete are increasing with lower temperatures. Fly ash (FA), compared to ground granulated blast-furnace slag (GGBFS), is positive to the compressive strength increasing at low temperature. The splitting tensile strengths of concrete appear a maximum at-40°C~-80°C. The compound replacement by GGBFS and FA makes the splitting tensile strength present the extreme value at higher temperature. At very low temperature, the single or compound replacement by mineral admixtures can result in the difference of the relationship between compressive strength and splitting tensile strength, and the degradation of concrete subjected to cold-thermal shocks.
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Yuan, Guang Lin, Jing Wei Zhang, Jian Wen Chen, and Dan Yu Zhu. "Deterioration of Mechanical Properties of High-Strength Pumpcrete after Exposure to High Temperatures." Advanced Materials Research 168-170 (December 2010): 564–69. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.564.

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This paper makes an experimental study of mechanical properties of high-strength pumpcrete under fire, and the effects of heating rate, heating temperature and cooling mode on the residual compressive strength(RCS) of high-strength pumpcrete are investigated. The results show that under air cooling, the strength deterioration speed of high-strength concrete after high temperature increases with the increase of concrete strength grade. Also, the higher heating temperature is, the lower residual compressive strength value is. At the same heating rate (10°C/min), the residual compressive strength of C45 concrete after water cooling is a little higher than that after air cooling; but the test results are just the opposite for C55 and C65 concrete. The strength deterioration speed of high-strength concrete after high temperature increases with the increase of heating rate, but not in proportion. And when the heating temperature rises up between 200°C and 500°C, heating rate has the most remarkable effect on the residual compressive strength of concrete. These test results provide scientific proofs for further evaluation and analysis of mechanical properties of reinforced-concrete after exposure to high temperatures.
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Canbaz, Mehmet, and Erman Acay. "Effect of high temperature on SCC containing fly ash." Challenge Journal of Concrete Research Letters 12, no. 1 (March 12, 2021): 1. http://dx.doi.org/10.20528/cjcrl.2021.01.001.

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The effect of high temperature on self-compacting concrete, which contains different amounts of fly ash, has been investigated. By considering the effect of concrete age and increased temperatures, the optimum fly ash-cement ratio for the optimum concrete strength is determined using experimental studies. Self-compacting concrete specimens are produced, with fly ash/cement ratios of 0%, 20% and 40%. Specimens were cured for 28, 56 and 90 days. After curing was completed, the specimens were subjected to temperatures of 20°C, 100°C, 400°C, 700°C and 900°C for three hours. After the cooling process, tests were performed to determine the unit weight, ultrasonic pulse velocity and compressive strength of the specimens. According to the experiment results, an increase in fly ash ratio causes a decrease in the compressive strength of self-compacting concrete. However, it positively contributes to self-compaction and strength loss at high temperatures. The utilization of fly ash in concrete significantly contributes to the environment and the economy. For this reason, the addition of 20% fly ash to concrete is considered to be effective.
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Amin, Mohamed, and Khaled Abu el-hassan. "Effect of different fiber types on the mechanical properties of normal and high strength concrete at elevated temperatures." Challenge Journal of Concrete Research Letters 12, no. 1 (March 12, 2021): 30. http://dx.doi.org/10.20528/cjcrl.2021.01.004.

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The effects of the types of fibers on mechanical properties of normal and high strength concrete under high temperature, up to 700 °C, was investigated. Three different- type fiber; "Steel Fiber (SF), Glass Fiber (GF) and Polypropylene Fiber (PPF)" are added into the concretes in five different ratios (0, 0.50, 1.00, 1.50 and 2.0%)of the volume under the following temperatures; 22, 100, 400 and 700°C. The results indicate that all the different types of fibers researched contribute to both the compressive and flexural strengths of concrete under high temperature, however, it is also found that this contribution decreases with an increase in temperature. The flexural strengths and compressive strengths for NSC and HSC mixes at 28 days under high temperature decreases as the temperature increases especially up to 400°C. Also, the best compressive and flexural strengths performance under high temperature was also those of SF. The compressive strength of the concrete incorporating SF was reduced under high temperature only, while the mixes containing PPF and GF were reduced under high temperature or with fiber addition. The optimum fiber addition ratios of the mixes containing PPF and GF are between 0.5-1.0 percent by volume. And for SF, it is 1.5% by the volume.
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VefaAkpınar, Muhammet. "EFFECT OF GLASS BEAD AND ZEOLITE IN CONCRETE UNDER HIGH TEMPERATURE." International Journal of Research -GRANTHAALAYAH 4, no. 12 (December 31, 2016): 65–71. http://dx.doi.org/10.29121/granthaalayah.v4.i12.2016.2393.

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The paper presents the impact of high temperature on concrete with glass bead and zeolite in its mixture. It is desired to reduce the concrete surface temperature when it is exposed to high temperature. In this study, different range of proportions of glass beads (%10, %20, %30) and zeolite (%10, %30) were added into the C30/37 strength class concrete as a fine aggregate and Portland cement, respectively. Surface temperatures of concrete samples were measured when concrete was under about 3000°C flame for a short time. It was determined that, using glass bead and zeolite together in concrete reduces surface temperature significantly under high temperature. The study presented herein provides important results on regulating concrete mixture if there is any risk to be exposed to high temperature. The study presented herein provides important results on regulating concrete mixture if there is any risk to be exposed to high temperature. The main research question is “Is it possible to reduce surface temperature of concrete when it is exposed to very high temperature by using glass bead and zeolite in concrete mixture”. 10 different types of concrete mixtures were designed to study the effects of concrete and zeolite on compressive strength and surface temperatures of concrete. It was determined that using glass bead as a fine aggregate and zeolite, significantly affects concrete surface temperature and temperature differences of both sides when concrete is exposed to very high temperature. Using glass bead and zeolite in concrete for fire resistance hasn’t been searched before. In this study it was determined that it is possible to get lower surface temperatures by using glass bead and zeolite in concrete mixture. The ideal proportion was %20 for glass bead and %30 for zeolite in the mixture to obtain lowest surface temperatures and meet the compressive strength requirements. These types of mixtures can also be examined for concrete pavements to get lower temperature gradients in summer and obtain less thermal cracking on concrete road.
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Liu, Chuan Xiong, Yu Long Li, Bing Hou, Wei Guo Guo, and Jin Long Zou. "Dynamic Compressive Behavior of Concrete at High Temperatures." Advanced Materials Research 217-218 (March 2011): 1811–16. http://dx.doi.org/10.4028/www.scientific.net/amr.217-218.1811.

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For investigating the effect of temperature on the dynamic properties of concrete material, tests for cylindrical concrete specimens at 23°C ~ 800°C were carried out by using Split Hopkinson Pressure Bar (SHPB) apparatus, and the strain rates ranged from 30/s to 220/s. Effects of temperature and strain-rate on the dynamic behavior of concrete were analyzed. The results show that: above 4000C, the dynamic compressive strength of concrete decreases with increasing temperature, and the enhancements of strain-rates on the compressive strength of concrete depend significantly on temperatures. Moreover, both strain-rate and temperature can enhance the peak strain of concrete.
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Zhao, Jun, Kang Wang, Shuaibin Wang, Zike Wang, Zhaohui Yang, Eskinder Desta Shumuye, and Xinglong Gong. "Effect of Elevated Temperature on Mechanical Properties of High-Volume Fly Ash-Based Geopolymer Concrete, Mortar and Paste Cured at Room Temperature." Polymers 13, no. 9 (May 2, 2021): 1473. http://dx.doi.org/10.3390/polym13091473.

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This paper presents results from experimental work on mechanical properties of geopolymer concrete, mortar and paste prepared using fly ash and blended slag. Compressive strength, splitting tensile strength and flexural strength tests were conducted on large sets of geopolymer and ordinary concrete, mortar and paste after exposure to elevated temperatures. From Thermogravimetric analyzer (TGA), X-ray diffraction (XRD), Scanning electron microscope (SEM) test results, the geopolymer exhibits excellent resistance to elevated temperature. Compressive strengths of C30, C40 and C50 geopolymer concrete, mortar and paste show incremental improvement then followed by a gradual reduction, and finally reach a relatively consistent value with an increase in exposure temperature. The higher slag content in the geopolymer reduces residual strength and the lower exposure temperature corresponding to peak residual strength. Resistance to elevated temperature of C40 geopolymer concrete, mortar and paste is better than that of ordinary concrete, mortar and paste at the same grade. XRD, TGA and SEM analysis suggests that the heat resistance of C–S–H produced using slag is lower than that of sulphoaluminate gel (quartz and mullite, etc.) produced using fly ash. This facilitates degradation of C30, C40 and C50 geopolymer after exposure to elevated temperatures.
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Sophia, M., and N. Soundarya. "Temperature Effect On Reactive Powder Concrete Using Sillimanite As Fine Aggregate." Journal of Physics: Conference Series 2332, no. 1 (September 1, 2022): 012014. http://dx.doi.org/10.1088/1742-6596/2332/1/012014.

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Abstract This study examines the use of sillimanite as a fine aggregate in the production of temperature-resistant reactive powder concrete. The impact of high temperatures on the mechanical strength of reactive powder concrete with High Alumina cement is investigated. The effectiveness of utilizing glass powder and sillimanite on the mechanical properties of RPC at high temperatures is investigated in this research. The samples were heated in the muffle furnace to the desired temperatures and then tested for their residual compressive strength, flexural strength and split tensile strength. The residual values of compressive strength, flexural strength and split tensile strength were measured at the temperature of 270C to 800°C. The weight loss of the specimens after exposure to the elevated temperatures was measured and the values showed enhanced resistance to the high temperature effects. The results demonstrate the greater contribution of glass powder and sillimanite towards the significant improvement of high temperature strength of reactive powder concrete than those made with normal quartz sand as fine aggregate.
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Peng, G.-F., Y.-C. Jiang, B.-H. Li, J. Zhang, and Y.-X. Shi. "Effect of high temperature on normal-strength high-performance concrete." Materials Research Innovations 18, sup2 (May 2014): S2–290—S2–293. http://dx.doi.org/10.1179/1432891714z.000000000414.

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Dissertations / Theses on the topic "High strength concrete Effect of temperature on"

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Acquaye, Lucy. "Effect of high curing temperatures on the strength, durability and potential of delayed ettringite formation in mass concrete structures." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0013837.

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TSIMBROVSKA, MARIANA. "Dégradation des bétons à hautes performances soumis à des températures élevées : évolution de la perméabilité en liaison avec la microstructure." Université Joseph Fourier (Grenoble), 1998. http://www.theses.fr/1998GRE10030.

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Les betons a hautes performances (bhp), grace a leur durabilite et resistance mecanique elevees, sont de plus en plus utilises dans la construction. Cependant, sous certaines sollicitations thermiques (incendie, accident nucleaire) ces betons manifestent parfois un comportement fragile appele eclatement. Un des principaux parametres regissant l'eclatement est la permeabilite qui controle les transferts des fluides. Cette propriete est fonction de la microstructure du materiau, caracterisee par la porosite, la distribution des tailles de pores, la connectivite et la tortuosite du reseau poreux, la densite et l'ouverture des fissures. Ce travail a pour but d'etudier l'evolution de la permeabilite intrinseque des bhp degrades suite a un echauffement (jusqu'a 400c) et de correler cette evolution aux caracteristiques de microstructure. Une etude comparative avec les betons ordinaires est effectuee. La permeabilite intrinseque des betons est estimee a partir des mesures de la permeabilite aux gaz. Avant traitement thermique la permeabilite intrinseque des bhp est inferieure d'environ un ordre de grandeur a celle des betons ordinaires. Cependant sous l'effet de la temperature cette propriete augmente plus rapidement dans les bhp (2 ordres de grandeur) et apres traitement thermique a 400c les bhp sont plus permeables que les betons ordinaires. Le sous-espace poreux efficace vis-a-vis de la permeabilite est identifie comme celui constitue de pores de diametre superieur a 0,1m. L'evolution de ce sous-espace poreux avec la temperature et la microfissuration expliquent les variations de la permeabilite dans chaque type de materiau. Trois modeles reliant la permeabilite a la microstructure sont appliques et leurs previsions sont comparees aux resultats experimentaux. Cette comparaison est satisfaisante mais montre les limites des representations topographique et geometrique des reseaux poreux utilisees dans la modelisation des transferts de masse.
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Marquis, Glenn M. "Effect of high-strength concrete on the seismic response of concrete frames." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ37270.pdf.

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Sheikh, Vassiem. "Fresh properties, temperature rise and strength development of high strength concrete with binary and tertiary blended cements." Thesis, University College London (University of London), 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395651.

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The use of high strength concrete in the construction industry has become more frequent as both the knowledge of the behaviour of the material and the confidence in its production have increased. An appropriate formulation of materials and mix proportions can result in significantly enhanced performance such as high early strength, reduced heat of hydration and increased durability. As a step towards obtaining optimum performance, an investigation has been carried out on the fresh properties (workability), temperature rise during hydration and strength development. This research was aimed at understanding the role of supplementary cementing materials in binary (OPC+PFA, GGBS, CSF) and ternary (OPC+ CSF/PFA, CSF/GGBS) combinations in these three areas. With respect to workability the use of binary mixes of PFA or CSF reduce the superplasticiser dosage required to obtain a target slump, whereas GGBS increases it. Optimum replacement levels of 10% CSF, 40%PFA+l0%CSF and 60%GGBS+l0% CSF were found at a water/binder ratio of 0.26. Binary mixes of 40% PFA or 60% GGBS reduce the peak semi-adiabatic temperature rise compared to their equivalent OPC mix at 0.26 water/binder ratio. Ternary combinations of 10% CSF with PFA or GGBS have shown significant reductions in peak temperature rise compared to their equivalent binary mixes. Measurement of the in-situ strength by temperature matched curing (TMC) has shown higher early age strengths but lower long term strengths for both binary and ternary mixes compared to cubes cured under standard conditions (20°C). Microstructural evaluation of hardened cement paste indicates that these differences in strength are likely to be associated with stresses generated at the paste/aggregate interface. A novel non-destructive technique to assess the in-situ strength has shown good correlation between conductivity and strength development of high strength concrete.
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Ghannoum, Carla M. "Effect of high-strength concrete on the performance of slab-column specimens." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0027/MQ50609.pdf.

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Ghannoum, Carla M. "Effect of high-strength concrete on the performance of slab-column specimens." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=21294.

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The behaviour of interior slab-column connections in flat plates is investigated. The first part of this thesis discusses six two-way slab-column specimens which were designed such that they would fail in punching shear. The parameters investigated were the use of high-strength concrete and the concentration of the slab flexural reinforcement in the immediate column region. The effects of these parameters on the punching shear capacity, negative moment cracking, and stiffness of the two-way slab specimens are investigated.
The second part of this thesis is a comparison of the test results obtained from this experimental program with the punching shear predictions of the Canadian CSA A23 3-94 Standard and the American ACI 318-95 Code. Some comparisons of the punching shear strength provisions of the British BS 8110-85 Standard and the European CEB-FIP 1990 Model Code are also carried out. Furthermore, the CSA Standard and the ACI Code predictions are compared to the experimental results obtained from some slab-column connections tested in this experimental program and tested by various investigators.
The beneficial effects of the use of high-strength concrete and of the concentration of flexural reinforcement in the immediate column vicinity are demonstrated. It is also concluded that the punching shear strength of slab-column connections is a function of the flexural reinforcement ratio and that the shear design of slabs according to the current Canadian and American codes can be unconservative under certain conditions. It is recommended that the punching shear expressions of the CSA Standard and the ACI Code be modified to include the effect that the flexural reinforcement ratio has on the shear capacity of slab structures.
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Trende, Uwe. "Interface fracture mechanics of high strength concrete : size effect and aggregate roughness." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/11812.

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Griškevičius, Mečislavas. "High Temperature Effect On Resistance Of Timber Structures." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20101119_134602-29128.

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The present dissertation and its main subjects inquires into the pine and oak timber strength property changes-temperature relations. It also explores the behaviour of slender timber elements in axial compression at higher temperatures; and the comparative analysis of obtained results. The work seeks to accomplish the following major tasks: to obtain test data about the influence of high temperature on the properties of different natural – pine and oak – timber; to investigate the behaviour of slender timber elements under axial compression exposed to fire. Taking into account the investigated real fire effect to correct accordingly the existing in LST EN 1995-1-2 procedure for the fire resistance calculation of timber slender elements in compression. The dissertation consists of an introduction, five chapters, general conclusions, a list of references, a list of author’s publications on the dissertation subject, and 2 Annexes. Chapter 1 provides a literature review. It focuses on the publications inquiring into the loss of strength properties by timber at higher temperatures, the fire resistance of timber structures in compression. The chapter ends with the formulation of conclusions and the adjustment of research tasks. Chapter 2 offers the methodology of the research on strength properties of timber at higher temperatures, and the schemes of the developed testing equipment. Chapter 3 presents the procedure of the research on the behaviour of slender timber elements... [to full text]
Disertacijoje nagrinėjami pušinės ir ąžuolinės medienos stipruminių savybių pokyčių temperatūriniai sąryšiai bei medinių centriškai gniuždomų liaunų elementų elgsena veikiant aukštesnėms temperatūroms. Pagrindiniai tyrimo objektai yra Lietuvos spygliuočių ir lapuočių medienos savybių pokyčiai didėjant temperatūrai ir centriškai gniuždomų liaunų medinių elementų elgsenos veikiant kaitrai eksperimentiniai tyrimai bei rezultatų lyginamoji analizė. Darbe spręsti tokie pagrindiniai uždaviniai: gauti eksperimentinius duomenis apie aukštos temperatūros poveikį skirtingos natūralios – pušinės ir ąžuolinės – medienos savybėms, atlikti centriškai gniuždomų liaunų medinių elementų elgsenos ugnyje tyrimus. Atsižvelgiant į tyrinėtą tikrovišką gaisro poveikį patikslinti esamą EN 1995-1-2 medinių liaunų gniuždomų elementų atsparumo ugniai skaičiavimo metodiką. Disertaciją sudaro įvadas, penki skyriai, bendrosios išvados, naudotos literatūros ir autoriaus publikacijų disertacijos tema sąrašai ir du priedai. Pirmasis skyrius skirtas literatūros apžvalgai. Jame pateikta darbų, kuriuose nagrinėjamas aukštesnės temperatūros veikiamos medienos, stipruminių savybių mažėjimas ir kuriuose pateikiami gaisro sąlygomis gniuždomų medinių elementų laikomosios galios tyrimų rezultatai. Pabaigoje formuluotos išvados ir disertacijos tikslai ir uždaviniai. Antrajame skyriuje pateikta medienos stipruminių savybių aukštesnėse temperatūrose tyrimo metodika ir sukurtų nestandartinių bandymo įrenginių schemos... [toliau žr. visą tekstą]
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De, Carufel Sarah. "Effect of High-Performance Steel Materials on the Blast Behaviour of Ultra-High Performance Concrete Columns." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/35380.

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Previous events have demonstrated the vulnerability of reinforced concrete infrastructure to blast loading. In buildings, ground-story columns are key structural components, and their failure can lead to extensive damages which can cause progressive collapse. To prevent such disasters, the steel reinforcement in such columns must be properly detailed to ensure sufficient strength and ductility. The use of modern concrete materials such ultra-high performance concrete (UHPC) is one potential solution to improve the blast performance of columns. UHPC shows high compressive strength, high tensile resistance and superior toughness, properties which make it ideal for use in the blast-resistant design of columns. The combined use of UHPC and high-performance steels can potentially be used to further enhance the blast resistance of columns. This thesis presents an experimental and analytical study which investigated the use of high-performance materials to increase the blast capacity and ductility of reinforced concrete columns. As part of the experimental study, a total of seventeen columns were tested under simulated blast loading using the University of Ottawa Shock-Tube. Parameters investigated included the effect of concrete type (NSC and UHPC), steel reinforcement type (normal-strength, high-strength or highly ductile), longitudinal reinforcement ratio, seismic detailing and fiber properties. The test program included two control specimens built with normal-strength concrete, five specimens built with UHPC in combination with high-strength steel, and ten columns built with highly ductile stainless steel reinforcement. Each column was subjected to a series of increasing blast pressures until failure. The performance of the columns is investigated by comparing the displacements, impulse capacity and secondary fragmentation resistance of the columns. The results show that using high-performance steels increases the blast performance of UHPC columns. The use of sufficient amounts of high-strength steel in combination with UHPC led to important increases in column blast capacity. The use of ductile stainless steel reinforcement allowed for important enhancements in column ductility, with an ability to prevent rupture of tension steel reinforcement. The study also shows that increasing the longitudinal reinforcement ratio is an effective means of increasing the blast resistance of UHPC columns The thesis also presents an extensive analytical study which aimed at predicting the response of the test columns using dynamic inelastic, single-degree-of-freedom (SDOF) analysis. A sensitivity analysis was also performed to examine the effect of various modelling parameters on the analytical predictions. Overall, it was shown that SDOF analysis could be used to predict the blast response of UHPC columns with reasonable accuracy. To further corroborate the results from the experimental study, the thesis also presents an analytical parametric study examining the blast performance of larger-scale columns. The results further demonstrate the benefits of using UHPC and high-performance steel reinforcement in columns subjected to blast loading.
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Kim, Byoungil. "Effect of fiber types on the mechanical properties and permeability of high strength concrete." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0015827.

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Books on the topic "High strength concrete Effect of temperature on"

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Grodzicka, Alicja. Odporność betonu wysokowartościowego na działanie mrozu: Freeze-thaw resistance o high-performance concrete. Warszawa: Wydawnictwa Instytutu Techniki Budowlanej, 2005.

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tutkimuskeskus, Valtion teknillinen, ed. Frost effects on the microstructure of high strength concrete, and methods for their analysis. Espoo, Finland: Technical Research Centre of Finland, 1992.

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Alca, Nedim. Effect of size on flexural behaviour of high-strength concrete beams. Edmonton, Alta: Dept. of Civil Engineering, University of Alberta, 1993.

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Duncan, G. Effect of stray currents on high strength steel prestressingwire in concrete. Manchester: UMIST, 1994.

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Bažant, Z. P. Concrete at high temperatures: Material properties and mathematical models. Harlow: Longman, 1996.

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The influence of fly ash and early-age curing temperature on the durability and strength of high-performance concrete. Ottawa: National Library of Canada = Bibliothèque nationale du Canada, 1999.

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J, Marchand, Pigeon Michel, Setzer M, and International Workshop on Freeze-Thaw and De-icing Resistance of Concrete (Lund, Sweden), eds. Freeze-thaw durability of concrete: Proceedings of the International Workshop in the Resistance of Concrete to Scaling Due to Freezing in the Prsence of De-icing Salts, Sainte-Foy, Québec, Canada : papers from the International Workshop on Freeze-Thaw and De-icing Resistance of Concrete, Lund, Sweden. London: E & FN Spon, 1997.

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J, Carino Nicholas, and National Institute of Standards and Technology (U.S.), eds. Mechanical properties of high-strength concrete at elevated temperatures. Gaithersburg, MD: U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 2001.

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J, Carino Nicholas, and National Institute of Standards and Technology (U.S.), eds. Mechanical properties of high-strength concrete at elevated temperatures. Gaithersburg, MD: U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 2001.

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J, Carino Nicholas, and National Institute of Standards and Technology (U.S.), eds. Mechanical properties of high-strength concrete at elevated temperatures. Gaithersburg, MD: U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 2001.

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Book chapters on the topic "High strength concrete Effect of temperature on"

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Otto, Corinne, Kerstin Elsmeier, and Ludger Lohaus. "Temperature Effects on the Fatigue Resistance of High-Strength-Concrete and High-Strength-Grout." In High Tech Concrete: Where Technology and Engineering Meet, 1401–9. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-59471-2_161.

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Bourchy, Agathe, Laury Barnes, Laetitia Bessette, and Jean Michel Torrenti. "Effect of the Cement Composition on the Temperature and Strength Rising at Early Age." In High Tech Concrete: Where Technology and Engineering Meet, 100–108. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-59471-2_13.

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Rehman, Ateequr, Amjad Masood, Sabih Akhtar, and M. Shariq. "Effect of Elevated Temperature on the Residual Compressive Strength of Normal and High Strength Concrete." In Lecture Notes in Civil Engineering, 177–87. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2545-2_17.

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Petrus, Clotilda, Ruqayyah Ismail, Fariz Aswan Ahmad Zakwa, Nur Ashikin Marzuki, Nor Hafida Hashim, and Khairil Imran Fadillah. "The Effect of Steel Fibre on Flexural Strength of Fibre Reinforced Concrete at High Temperature." In InCIEC 2013, 721–29. Singapore: Springer Singapore, 2014. http://dx.doi.org/10.1007/978-981-4585-02-6_62.

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Yazıcıoğlu, Salih, Rukiye Tuğla, Serhay Ay, and Bahar Demirel. "Effect of High Temperature on Compressive Strength of Concrete Prepared Using Different Types of Aggregates." In Lecture Notes in Civil Engineering, 425–34. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-63709-9_34.

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Bian, Song Hua, Gai Fei Peng, Zhang-Li Zhao, and Quan Xin Yi. "Effect of Various Moisture Contents, Variety and Dosage of Fibers on Explosive Spalling and Residual Compressive Strength of High Performance Concrete Subjected to High Temperatures." In Environmental Ecology and Technology of Concrete, 618–23. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-983-0.618.

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Rathi, V. R., and C. D. Modhera. "Effect of Elevated Temperature on Mechanical Properties of High-Strength Concrete Produced by Adding Fly Ash and Colloidal Nanosilica." In Lecture Notes in Civil Engineering, 137–43. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8496-8_17.

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Prakash, Patnayakuni Ravi, and Gaurav Srivastava. "Numerical Modeling of Spalling in High Strength Concrete at High Temperature." In Lecture Notes in Civil Engineering, 431–40. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0362-3_34.

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Peng, Gai Fei, Sammy Yin Nin Chan, Qi Ming Song, and Quan Xin Yi. "Effect of High Temperature on Concrete: A Literature Review." In Environmental Ecology and Technology of Concrete, 138–49. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-983-0.138.

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Park, Hong-Gun, Jang-Woon Baek, and Sung-Hyun Kim. "Effect of High-Strength Reinforcement for Shear Strength and Shear-Friction Strength of RC Walls Subjected to Cyclic Lateral Loading." In Concrete Structures in Earthquake, 67–81. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-3278-4_5.

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Conference papers on the topic "High strength concrete Effect of temperature on"

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"Effect of Low Temperature on the Creep Behavior of High-Strength Concrete." In SP-135: Creep and Shrinkage of Concrete: Effect of Materials and Environment. American Concrete Institute, 1992. http://dx.doi.org/10.14359/2259.

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"High Temperature Effect on Stress-Strain Properties of High-Strength Steel Fiber Concrete." In SP-326: Durability and Sustainability of Concrete Structures (DSCS-2018). American Concrete Institute, 2018. http://dx.doi.org/10.14359/51711048.

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"The Effect of Elevated Temperatures on the Moisture Migration and Spalling Behavior of High-Strength and Normal Concretes." In SP-167: High-Strength Concrete: An International Perspective. American Concrete Institute, 1997. http://dx.doi.org/10.14359/6291.

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"High Temperature Effect on High Performance Concrete (70 - 600 C) strength and porosity." In "SP-145: Durability of Concrete -- Proceedings Third CANMET - ACI International Conference, Nice, France 1994". American Concrete Institute, 1994. http://dx.doi.org/10.14359/4546.

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Deshpande, Alok A., Dhanendra Kumar, Ravi Ranade, and Andrew S. Whittaker. "Advanced concretes for high temperature applications." In IABSE Congress, New York, New York 2019: The Evolving Metropolis. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/newyork.2019.0328.

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<p>The mechanical properties of concrete deteriorate at high temperatures. Strain-hardening cementitious composites (SHCC) are a special class of fiber-reinforced concretes that exhibit strain-hardening behavior in direct tension. The mechanical behavior of a SHCC made using polyvinyl alcohol (PVA) fibers is characterized after exposure to temperatures up to 800°C. The effects of temperature on compressive strength, splitting tensile strength and modulus of rupture are reported. For comparison, a normal strength conventional concrete of similar compressive strength to the SHCC was heated and tested in the same conditions as the SHCC. The normalized tensile strength of SHCC at room temperature, and after exposure to high temperature, is significantly greater than the value for conventional concrete. The PVA fibers provide crack-bridging capacity up to about 200°C (melting point of PVA fibers is 230°C), leading to improved tensile behavior. At greater temperatures, the fibers melt, creating pathways for steam to escape, reducing micro-cracking and significantly improving mechanical behavior with respect to conventional concrete. SHCC is a robust alternative to conventional concrete for high temperature applications.</p>
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"The Effect of Curing Temperature on High-Strength Concrete Used in Precast Factories." In "SP-200: Fifth CANMET/ACI Conference on Recent Advances in Concrete Technology-Proceeding, Fifth International Conference". American Concrete Institute, 2001. http://dx.doi.org/10.14359/10571.

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John, Emerson E., W. Micah Hale, and R. Panneer Selvam. "Effect of High Temperatures and Heating Rates on High Strength Concrete for Use as Thermal Energy Storage." In ASME 2010 4th International Conference on Energy Sustainability. ASMEDC, 2010. http://dx.doi.org/10.1115/es2010-90096.

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In recent years due to rising energy costs as well as an increased interest in the reduction of greenhouse gas emissions, there is great interest in developing alternative sources of energy. One of the most viable alternative energy resources is solar energy. Concentrating solar power (CSP) technologies have been identified as an option for meeting utility needs in the U.S. Southwest. Areas where CSP technologies can be improved are improved heat transfer fluid (HTF) and improved methods of thermal energy storage (TES). One viable option for TES storage media is concrete. The material costs of concrete can be very inexpensive and the costs/ kWhthermal, which is based on the operating temperature, are reported to be approximately $1. Researchers using concrete as a TES storage media have achieved maximum operating temperatures of 400°C. However, there are concerns for using concrete as the TES medium, and these concerns center on the effects and the limitations that the high temperatures may have on the concrete. As the concrete temperature increases, decomposition of the calcium hydroxide (CH) occurs at 500°C, and there is significant strength loss due to degeneration of the calcium silicate hydrates (C-S-H). Additionally concrete exposed to high temperatures has a propensity to spall explosively. This proposed paper examines the effect of heating rates on high performance concrete mixtures. Concrete mixtures with water to cementitious material ratios (w/cm) of 0.15 to 0.30 and compressive strengths of up to 180 MPa (26 ksi) were cast and subjected to heating rates of 3, 5, 7, and 9° C/min. These concrete mixtures are to be used in tests modules where molten salt is used as the heat transfer fluid. Molten salt becomes liquid at temperatures exceeding 220°C and therefore the concrete will be exposed to high initial temperatures and subsequently at controlled heating rates up to desired operating temperatures. Preliminary results consistently show that concrete mixtures without polypropylene fibres (PP) cannot resist temperatures beyond 500° C, regardless of the heating rate employed. These mixtures spall at higher temperatures when heated at a faster rate (7° C/min). Additionally, mixtures which incorporate PP fibres can withstand temperatures up to 600° C without spalling irrespective of the heating rate.
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"Effect of High-Temperature Curing on the Compressive Strength of Concrete Incorporating large Volumes of Fly Ash." In "SP-199: Seventh CANMET/ACI International Conference on Fly Ash, Silica Fume, Slag and Natural Pozzolans in Concrete". American Concrete Institute, 2001. http://dx.doi.org/10.14359/10531.

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"Effect of Curing in a High Temperature Environment on Compressive Strength of Concrete Incorporating Different Complementary Cementitious Materials." In "SP-209: ACI Fifth Int Conf Innovations in Design with Emphasis on Seismic, Wind and Environmental Loading, Quality Con". American Concrete Institute, 2002. http://dx.doi.org/10.14359/12491.

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Veljkovic, Ana, Valter Carvelli, Sandor Solyom, György L. Balázs, and Mohammadali Rezazadeh. "Modelling the temperature effects at the interface between GFRP bar and concrete." In IABSE Symposium, Guimarães 2019: Towards a Resilient Built Environment Risk and Asset Management. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/guimaraes.2019.1065.

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<p>GFRP (Glass Fibre Reinforced Polymer) reinforcing bars find recently increasing application in RC (Reinforced Concrete) structures. In addition to the main advantages, such as non-corrosive nature and high strength-to-weight ratio, the main drawback is their endurance under high temperature. Mechanical properties of GFRP bars and their bond to concrete decrease significantly when exposed to elevated temperatures. Thus, thermal response represents one of the main safety concerns for GFRP RC structures. This study focuses on the numerical modelling of the thermo-mechanical behaviour of GFRP bar and concrete bond. The temperature dependent bond law was calibrated using the experimental pull-out tests, and subsequently it was implemented in the finite element simulations. The validation of the methodology is obtained by comparison of corresponding experimental and numerical results.</p>
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Reports on the topic "High strength concrete Effect of temperature on"

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QI, H., Y. DU, B. WANG, and R. Liew. STUDY ON TEMPERATURE DISTRIBUTION OF HIGH STRENGTH CONCRETE FILLED STEEL TUBULAR COLUMNS DUE TO FIRE. The Hong Kong Institute of Steel Construction, December 2018. http://dx.doi.org/10.18057/icass2018.p.165.

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Zinkle, S. J., and W. S. Eatherly. Effect of test temperature and strain rate on the tensile properties of high-strength, high-conductivity copper alloys. Office of Scientific and Technical Information (OSTI), April 1997. http://dx.doi.org/10.2172/543291.

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Roberson, Madeleine, Kathleen Inman, Ashley Carey, Isaac Howard, and Jameson Shannon. Probabilistic neural networks that predict compressive strength of high strength concrete in mass placements using thermal history. Engineer Research and Development Center (U.S.), June 2022. http://dx.doi.org/10.21079/11681/44483.

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This study explored the use of artificial neural networks to predict UHPC compressive strengths given thermal history and key mix components. The model developed herein employs Bayesian variational inference using Monte Carlo dropout to convey prediction uncertainty using 735 datapoints on seven UHPC mixtures collected using a variety of techniques. Datapoints contained a measured compressive strength along with three curing inputs (specimen maturity, maximum temperature experienced during curing, time of maximum temperature) and five mixture inputs to distinguish each UHPC mixture (cement type, silicon dioxide content, mix type, water to cementitious material ratio, and admixture dosage rate). Input analysis concluded that predictions were more sensitive to curing inputs than mixture inputs. On average, 8.2% of experimental results in the final model fell outside of the predicted range with 67.9%of these cases conservatively underpredicting. The results support that this model methodology is able to make sufficient probabilistic predictions within the scope of the provided dataset but is not for extrapolating beyond the training data. In addition, the model was vetted using various datasets obtained from literature to assess its versatility. Overall this model is a promising advancement towards predicting mechanical properties of high strength concrete with known uncertainties.
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Howard, Isaac, Thomas Allard, Ashley Carey, Matthew Priddy, Alta Knizley, and Jameson Shannon. Development of CORPS-STIF 1.0 with application to ultra-high performance concrete (UHPC). Engineer Research and Development Center (U.S.), April 2021. http://dx.doi.org/10.21079/11681/40440.

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This report introduces the first release of CORPS-STIF (Concrete Observations Repository and Predictive Software – Structural and Thermodynamical Integrated Framework). CORPS-STIF is envisioned to be used as a tool to optimize material constituents and geometries of mass concrete placements specifically for ultra-high performance concretes (UHPCs). An observations repository (OR) containing results of 649 mechanical property tests and 10 thermodynamical tests were recorded to be used as inputs for current and future releases. A thermodynamical integrated framework (TIF) was developed where the heat transfer coefficient was a function of temperature and determined at each time step. A structural integrated framework (SIF) modeled strength development in cylinders that underwent isothermal curing. CORPS-STIF represents a step toward understanding and predicting strength gain of UHPC for full-scale structures and specifically in mass concrete.
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Weiss, Charles, William McGinley, Bradford Songer, Madeline Kuchinski, and Frank Kuchinski. Performance of active porcelain enamel coated fibers for fiber-reinforced concrete : the performance of active porcelain enamel coatings for fiber-reinforced concrete and fiber tests at the University of Louisville. Engineer Research and Development Center (U.S.), May 2021. http://dx.doi.org/10.21079/11681/40683.

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A patented active porcelain enamel coating improves both the bond between the concrete and steel reinforcement as well as its corrosion resistance. A Small Business Innovation Research (SBIR) program to develop a commercial method for production of porcelain-coated fibers was developed in 2015. Market potential of this technology with its steel/concrete bond improvements and corrosion protection suggests that it can compete with other fiber reinforcing systems, with improvements in performance, durability, and cost, especially as compared to smooth fibers incorporated into concrete slabs and beams. Preliminary testing in a Phase 1 SBIR investigation indicated that active ceramic coatings on small diameter wire significantly improved the bond between the wires and the concrete to the point that the wires achieved yield before pullout without affecting the strength of the wire. As part of an SBIR Phase 2 effort, the University of Louisville under contract for Ceramics, Composites and Coatings Inc., proposed an investigation to evaluate active enamel-coated steel fibers in typical concrete applications and in masonry grouts in both tension and compression. Evaluation of the effect of the incorporation of coated fibers into Ultra-High Performance Concrete (UHPC) was examined using flexural and compressive strength testing as well as through nanoindentation.
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HIGH STRENGTH STEEL BEAM BEHAVIOR UNDER FIRE EXPOSURE CONSIDERING CREEP. The Hong Kong Institute of Steel Construction, August 2022. http://dx.doi.org/10.18057/icass2020.p.195.

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The creep effect has been neglected in most previously undertaken research on fire resistance of restrained steel beams due to the absence of applicable creep models. A finite element model (FEM) was determined in this research to study fire resistance and the behavior of the restrained high-strength Q690 steel beams under fire exposure considering the high-temperature Fields&Fields creep model. Comparing the results obtained by the FEM with previous test results proved the validity of the FEM. Furthermore, a second FEM without a creep model was established to study the influence of creep on the fire resistance of restrained high-strength Q690 steel beams. Results showed that creep has a serious impact on the fire resistance of restrained high-strength Q690 steel-beams. Thus, ignoring creep will possibly lead to unsafe designs. Additionally, based on the results of the FEM, including creep effect, a simplified calculation method for restrained high-strength Q690 steel beams is presented to calculate the moment capacity. This calculation method is suitable for computing the critical temperature of restrained high-strength Q690 steel beams.
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EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES AND OPTIMIZATION OF CHOPPED BASALT FIBER REINFORCED CONCRETE. The Hong Kong Institute of Steel Construction, August 2022. http://dx.doi.org/10.18057/icass2020.p.251.

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This paper investigated the influence of CBF damage mode of matrix concrete and the strength of matrix concrete under different stress states. The length of basalt fiber is 6 mm. Three basic mechanical properties tests were conducted with five fiber volume admixtures of 0.00%, 0.05%, 0.10%, 0.15% and 0.20% used as the variables. A total of 90 specimens of different sizes were prepared to study the variation rules of compressive strength, splitting tensile strength and flexural strength at different ages of 7d and 28d, the strengthening mechanism of the reinforcing effect of CBF was also analyzed, and the optimal volume fraction of CBFs was obtained. The results can be concluded that (1) the disordered distribution and uniform dispersion of CBF improve the damage morphology of concrete matrix, reflecting a good effect in the enhancing and crack-resisting; (2)The compressive strength and flexural strength increase first and then decrease with increasing of the fiber incorporation amount, and the BFRC reach their strength peak points when the fiber volume ratio is equal to 0.10%; (3) The dispersion of tensile strengths are relatively high, but they still show a trend of slow increasing trend.
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EXPERIMENTAL BEHAVIOR AND DESIGN OF RECTANGULAR CONCRETE-FILLED TUBULAR BUCKLING-RESTRAINED BRACES. The Hong Kong Institute of Steel Construction, December 2021. http://dx.doi.org/10.18057/ijasc.2021.17.4.5.

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This paper proposes a new design method for concrete-filled tubular buckling-restrained braces (CFT-BRBs) by incorporating the confinement effect on pre-buckling rigidity. A series of experiments are performed to investigate the effects of concrete strength and sectional dimension on the initial stiffness, ultimate strength, and energy dissipation behaviors. Experimental results indicate that the confined concrete plays an important role in the energy dissipating capacity of CFT-BRBs. On the other hand, the sectional dimensions of the steel tube and core are influential factors governing the ultimate failure modes of CFT-BRBs. The findings in study provide technical supports to optimize the design methods for ductile seismic performance of CFT-BRBs in low-rise and high-rise steel buildings.
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FINITE ELEMENT ANALYSIS ON BEHAVIOR OF HCFHST MIDDLE LONG COLUMNS WITH INNER I-SHAPED CFRP UNDER AXIAL LOAD. The Hong Kong Institute of Steel Construction, August 2022. http://dx.doi.org/10.18057/icass2020.p.033.

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In this paper, the behavior of high-strength concrete filled high-strength square steel tube (HCFHST) middle long columns with inner I-shaped CFRP profile under axial load was studied. The finite element analysis models were established by ABAQUS software based on reasonable material constitutive relationship models. The whole process curve of load-deformation was analyzed. In addition, effects of concrete strength, steel yield strength, slenderness ratio, steel ratio and configuration ratio of CFRP on mechanical behavior of middle long columns were studied. On the basis of the parametric analysis, the limit slenderness ratio of middle long columns was obtained. Results show that with the increase of steel yield strength, the bearing capacity increases gradually, but ductility decreases. The higher the concrete strength is, the greater the ultimate bearing capacity is. Effect of steel ratio on the ultimate bearing capacity and ductility is relatively obvious. The ultimate bearing capacity of HCFHST middle long columns with inner I-shaped CFRP profile decreases with the increase of slenderness ratio.
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