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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Influence of Calcium Leaching on Mechanical and Physical Properties of Limestone Powder–Cement Pastes Cured under Different Temperatures
TL;DR: In this paper , the influence of calcium leaching on the mechanical and physical properties of limestone powder (LS)-cement pastes cured under different temperatures was investigated, and three different mass percentages of LS (10, 30, and 50%) were selected to replace cement.
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Mechanical Activation of the Ca-Rich Circulating Fluidized Bed Combustion Fly Ash: Development of an Alternative Binder System
TL;DR: In this paper, the effect of the activation on the physical, chemical, and mineral characteristics of fly ash and its pastes was studied and it was shown that a short mechanical activation yields a 10-fold improvement in the compressive strength of the pastes, reaching 60 MPa after 90 days of curing without any chemical activation or blending.
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Investigation of environmentally friendly gypsum based composites with improved water resistance
TL;DR: In this paper , the water resistance of gypsum based composites, prepared from composed binder and silica sand, was investigated, and the composition, microstructure, mechanical properties and water transport parameters were studied.
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Bond behavior of self-compacting mortar containing construction and demolition waste under elevated temperatures
TL;DR: In this paper, the compatibility between self-compacting mortar (SCM) mixes containing recycled powder (RP) from construction and demolition waste (C&DW) and parent concrete under temperatures in excess of the current was investigated.
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.