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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Utilization of alkaline Aluminosilicate activation in heavy metals immobilization and producing dense hybrid composites
H. M. Khater,Mahmoud Ghareib +1 more
TL;DR: In this paper, the capability of geopolymers in the immobilization and entrapping of heavy metals bearing materials was examined, focusing on the evaluation of optimum ratio of heavy metal that can affect and densify the produced composite.
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Influence of Fly Ash and Ground Granulated Blast Furnace Slag on the Mechanical Properties and Reduction Behavior of Cold-Agglomerated Blast Furnace Briquettes
Mikko Mäkelä,Timo Paananen,Jyrki Heino,Tommi Kokkonen,Satu Huttunen,Hannu Makkonen,Olli Dahl +6 more
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Development of a Sustainable CO2 Solidified Aerated Concrete
TL;DR: In this paper , a CO2 solidified aerated concrete (CSAC) with γ-C2S as the primary carbonatable binder is reported, and the results show that CSAC has a compressive strength of 4.5 MPa and a carbonation degree of 65.8% when the carbonation duration is only 2 h at 60% CO2 concentration.
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Sulfate resistance and hydration products of steam cured steel slag blended cement mortar under dry–wet cycle
TL;DR: In this paper, the dry-wet-cycled sulfate resistance and hydration products of steam-cured and standardcured steel-slag mortars were 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.