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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Lithium Aluminosilicate Residue as Raw Material in the Production of Sustainable Concrete Masonry Units: A Brazilian Case
Paulo H. R. Borges,Flávio Antônio dos Santos,Nina Milikic,Francisco J. Belieny Jr.,Christiano A. Barsante +4 more
TL;DR: In this paper, the effect of the partial replacement of Portland cement (PC) in the production of sustainable concrete masonry units (CMU) for construction was investigated and its interaction with PC was also assessed.
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Residual performance of HPFRCC exposed to fire – Effects of matrix strength, synthetic fiber, and fire duration
TL;DR: In this paper, the effects of matrix strength, synthetic fiber content, and heating duration on the explosive spalling resistance and residual compressive and flexural properties of high-performance fiber-reinforced cementitious composites (HPFRCCs) were investigated.
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Microscopic techniques and a multi-analytical approach to study the fire damage of the painted stuccoes from the Petruzzelli Theatre (Bari, Southern Italy)
TL;DR: In this article, the effects of fire on the decorative stucco elements consisting of painted mouldings and decorations in the Petruzzelli Theatre in Bari (Italy) were investigated.
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Full process of calcium silicate hydrate decalcification: Molecular structure, dynamics, and mechanical properties
TL;DR: In this article , the influence of decalcification on calcium silicate hydrate (C-S-H) is studied by molecular dynamics and experiments, and it is shown that the interlayer bonding basically determines the threshold of micro/macro mechanical properties.
Avaliação da hidratação de pastas cimentícias com elevados teores de adições minerais
TL;DR: In this paper, a comparative study of pastas with adicoes minerais and Cimento Portland has been carried out, showing that substituicoes of 50% to 70% of the massa de ligante are used.
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.