Journal ArticleDOI
Spalling and pore pressure in HPC at high temperatures
TLDR
In this article, an original device was designed in order to make simultaneous measurements of pressure and temperature at various positions in a concrete specimen (30×30×12 cm3) heated on one face up to 800°C.About:
This article is published in Cement and Concrete Research.The article was published on 2000-12-01. It has received 552 citations till now. The article focuses on the topics: Water transport & Vapor pressure.read more
Citations
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Journal ArticleDOI
High-temperature behaviour of HPC with polypropylene fibres: From spalling to microstructure
TL;DR: In this article, the role of fibres is discussed through the analysis of concrete microstructure and fibre-matrix interactions as function of heat treatment, and the authors show that the presence of polypropylene fibres led to a large decrease in the extent of the pressure fields that build up in the porous network during heating.
Journal ArticleDOI
Effects of elevated temperatures on properties of concrete
TL;DR: In this article, the effects of elevated temperatures on the physical and mechanical properties of various concrete mixtures prepared by ordinary Portland cement, crushed limestone, and river gravel were investigated and the results indicated that the relative strength of concrete decreased as the exposure temperature increased.
Journal ArticleDOI
Mechanical properties of concrete at high temperature—A review
TL;DR: In this paper, the authors provide a comprehensive and updated report on the temperature dependency of such parameters as the compressive strength, modulus of elasticity, strength in indirect tension (bending and splitting tests), stress-strain curves and spalling, but the roles played by the water-binder ratio (w/b), aggregate type, supplementary cementitious materials (SCMs) and fibres are investigated as well.
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Compressive behavior of fiber reinforced high-performance concrete subjected to elevated temperatures
TL;DR: In this article, the effects of elevated temperatures on the compressive strength stress-strain relationship (stiffness) and energy absorption capacities (toughness) of concretes are presented.
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Behaviour of cement concrete at high temperature
TL;DR: In this paper, the effects of high temperature on concrete have been investigated, including changes taking place in cement paste, aggregates, as well as the interaction of these two constituents, that result in changes of mechanical and physical characteristics of concrete.
References
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Book
The chemistry of cement and concrete
TL;DR: The chemistry of cement and concrete as discussed by the authors, The chemistry of concrete and its properties, and the relationship between concrete and cement, is a classic example of such an approach. But it is not suitable for outdoor use.
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.
Journal ArticleDOI
Effect of transient high temperature on high-strength concrete
Carlos Castillo,A. J. DurraniI +1 more
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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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Transient thermal strain of concrete: literature review, conditions within specimen and behaviour of individual constituents
TL;DR: A literature review of transient thermal creep of concrete is presented in this article, revealing inadequate understanding of this subject for temperatures above 100°C and a lack of data for conditions pertinent to the analysis of concrete structures during first-time heating.