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
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Studies on thermal dehydration of the hydrated Ca7ZrAl6O18 at different water–solid ratios cured at 60 °C
TL;DR: In this article, the results of experimental study concerning the hydration behavior of Ca 7 ZrAl 6 O 18 with water to solid (w/s) ratios of 0.5 and 1.0 at 60°C are presented.
Dissertation
Waste glass - a supplementary cementitious material
TL;DR: In this paper, waste glass is used as a supplementary cementitious material in concrete, and a critical review of treatment methods is presented, with a focus on particle size, grinding, and cement alkalinity.
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Effects of fibres and rice husk ash on properties of heated HSC
TL;DR: In this paper, the influence of rice husk ash and polypropylene fibres of different lengths (6 and 24 mm) on the residual fracture mechanical behaviour of high-strength concrete (HSC) was analyzed.
Journal ArticleDOI
Degree of hydration and compressive strength of conditioned samples made of normal and blended cement system
TL;DR: In this paper, results of the degree of hydration of the pastes and the compressive strength of the 50 mm cubes prepared with the 100% cement and fly ash blended cement were determined.
Journal ArticleDOI
Effect of limestone in General Purpose cement on autogenous shrinkage of high strength GGBFS concrete and pastes
TL;DR: In this paper , the authors investigated the autogenous shrinkage of pastes and concretes prepared using General Purpose cement and GGBFS up to 100 days and found that these long term reactions lead to a significant refinement of the pore structure.
References
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Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.