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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Dehydration kinetics of Portland cement paste at high temperature
TL;DR: In this paper, the authors characterized the dehydration kinetic in terms of the combination of kinetics of CSH and CH, and analyzed the influence of temperature on the reaction rate is analyzed by Arrhenius equation.
Journal ArticleDOI
Biomineralized cement-based materials: Impact of inoculating vegetative bacterial cells on hydration and strength
TL;DR: In this paper, the impact of vegetative cells of Sporosarcina pasteurii on the hydration kinetics and compressive strength of cement-based materials was investigated.
Journal ArticleDOI
Utilization of original phosphogypsum as raw material for the preparation of self-leveling mortar
Lin Yang,Yunsheng Zhang,Yun Yan +2 more
TL;DR: In this paper, an experimental study was carried out to evaluate the fluidity, flexural strength, compressive strength, shrinkage, bond strength and wear resistance of self-leveling mortar prepared with original phosphogypsum.
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Natural pozzolan based geopolymers: A review on mechanical, microstructural and durability characteristics
TL;DR: In this article, a review paper summarizes the mechanical and durability characteristics as well as the microstructural properties of natural pozzolan based geopolymers and their potential as binding material.
Journal ArticleDOI
Characterization of high strength mortars with nano alumina at elevated temperatures
TL;DR: In this paper, the effect of elevated temperatures on chemical composition, microstructure and mechanical properties of high strength mortars with nano alumina was investigated and a brittleness index was defined.
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.
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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.