Open AccessJournal Article
Thermal properties of concrete at elevated temperatures
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TLDR
In this article, the authors present a set of theoretical and empirical evidences to make the assessment of the physicochemical capabilities of the normal generators of the CONCRETE plant possible.Abstract:
THE PRACTICE OF REGARDING THE THERMAL PROPERTIES OF CONCRETE AS CONSTANTS MAY LEAD TO SERIOUS ERRORS IN HEAT FLOW CALCULATIONS. BECAUSE OF THE PHYSIOCHEMICAL INSTABILITY OF CONCRETE IT IS VERY DIFFICULT TO PROCURE VALID EXPERIMENTAL INFORMATION. IN THIS PAPER THEORETICAL CONSIDERATIONS ARE PRESENTED WHICH, TOGETHER WITH SOME EXPERIMENTAL DATA, WILL MAKE THE ASSESSMENT OF THE THERMAL PROPERTIES OF CONCRETE POSSIBLE. THE CALCULATION PROCEDURE IS ILLUSTRATED BY EXAMPLES. /JM/read more
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Journal ArticleDOI
Properties of Concrete at Elevated Temperatures
TL;DR: In this paper, the thermal, mechanical, deformation, and spalling properties of concrete are discussed, and various properties that influence fire resistance performance, together with the role of these properties on fire resistance, are discussed.
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Factors affecting the thermal properties of concrete and applicability of its prediction models
TL;DR: In this paper, an investigation on thermal conductivity of mortar, concrete and its major constituent aggregate is presented, where four different types of rocks were tested for their conductivities at dry and fully saturated states, which were further crushed and used as coarse aggregates in concrete.
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Pore Pressure and Drying of Concrete at High Temperature
TL;DR: In this paper, a mathematical model for water transfer in concrete above 100°C is developed, and the pore volume available to free water increases as dehydration due to heating progresses and as pore pressure is increased.
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Effect of temperature on thermal properties of high-strength concrete
TL;DR: In this paper, the thermal properties of high-strength concrete (HSC) were determined as a function of temperature, including thermal conductivity, specific heat, thermal expansion, and mass loss.
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The nanogranular behavior of C-S-H at elevated temperatures (up to 700 °C)
TL;DR: In this paper, the thermal degradation of the two distinct calcium-silicate hydrate (C-S-H) phases, Low Density (LD) C S-H and High Density(HD) C H, is assessed based on a statistical analysis of massive nanoindentation tests.