Journal ArticleDOI
The use of thermal analysis in assessing the effect of temperature on a cement paste
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TLDR
In this article, the effect of temperature in the mineralogical composition of cement hydration products has been studied using thermogravimetric analysis (TGA) and DTG curves, which can be used to determine fire conditions and the consequent deterioration expected in the cement paste.About:
This article is published in Cement and Concrete Research.The article was published on 2005-03-01. It has received 709 citations till now. The article focuses on the topics: Cement & Portlandite.read more
Citations
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Pore structure in blended cement pastes
TL;DR: In this article, the authors present a list of symbols and abbreviations of symbols in the Bible and the list of Symbols and Symbolic Symbols in Disambiguation.
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Enhancing the accelerated carbonation of recycled concrete aggregates by using reclaimed wastewater from concrete batching plants
TL;DR: In this paper, a series of pretreatment methods were employed on both laboratory prepared cement pastes and real concrete aggregates to enhance the accelerated carbonation process, which involved the use of a saturated Ca(OH)2 solution and wastewater generated from a ready-mixed concrete plant.
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Post-fire flexural performance and microstructure of steel fiber-reinforced concrete with recycled nylon granules and zeolite substitution
Morteza Tayebi,Mahdi Nematzadeh +1 more
TL;DR: In this article, the flexural response of steel fiber-reinforced concrete (SFRC) incorporating recycled nylon granules (NG) and natural zeolite after exposure to elevated temperatures was investigated.
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Sulfate-induced degradation of cast-in-situ concrete influenced by magnesium
TL;DR: In this paper, the results of laboratory tests performed to investigate the effects of magnesium on concrete deterioration and sulfate diffusion in cast-in-situ concrete samples are reported, where concrete samples were prepared and then fully or partially immersed in two different corrosive solutions consisting of either sodium sulfate or magnesium sulfate.
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Gamma irradiation resistance of an early age slag-blended cement matrix for nuclear waste encapsulation
TL;DR: In this paper, the authors investigated gamma irradiation resistance of an early age slag cement-based grout, which is of interest for the nuclear industry as it is internationally used for encapsulation of low and intermediate level radioactive wastes.
References
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Compressive strength of concrete at high temperatures: a reassessment
TL;DR: In this paper, a reassessment of the subject is given, which considers material and environmental factors/mechanisms influencing the strength of concrete during the heat cycle and after cooling, not all of which necessarily result in strength loss.
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Thermal stability and decomposition mechanisms of ettringite at <120°C
Q. Zhou,Fredrik P. Glasser +1 more
TL;DR: In this article, the decomposition and reformation of ettringite is studied as a function of water vapour pressure and temperature, and the authors make recommendations for the upper safe service limits for ETTringite-based cements.
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Physicochemical, mineralogical, and morphological characteristics of concrete exposed to elevated temperatures
TL;DR: In this paper, the effect of elevated temperatures on the mineralogical changes occurring in the hydrated phases of concrete cubes were studied by measuring ultrasonic pulse velocity (UPV) and consequent deterioration in the compressive strength with increase in temperature.
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Differential scanning calorimetry study of ordinary Portland cement
Wei Sha,E.A. O’Neill,Z. Guo +2 more
TL;DR: In this article, the thermal behavior of hydration products in ordinary Portland cement as a function of age was investigated using differential scanning calorimeter (DSC) and X-ray diffraction analysis.
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Elastic properties of high alumina cement castables from room temperature to 1600°C
TL;DR: In this article, high-alumina refractory castables with compositions in the systems CaO-Al2O3 and CaO−Al 2O3-SiO2 were studied using an ultrasonic technique.