Effect of fire on concrete and concrete structures

By G. Khoury. 2000

806 citations recorded by the source corpus.

Subfields: Civil and Structural Engineering, General Materials Science, Safety, Risk, Reliability and Quality

View Paper: https://www.semanticscholar.org/paper/0c70459bcd49f755971544531a271bf356f3aa05

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In Civil and Structural Engineering

In General Materials Science

In Safety, Risk, Reliability and Quality

Citations in the corpus

High temperature behaviour of hybrid steel–PVA fibre reinforced reactive powder concrete (2016, background): “Three different mechanisms—restrained thermal expansion, build-up of pore pressure, and combined thermal stresses and pore pressures—have been suggested as the cause of explosive spalling [16].”
Finite element modeling of reinforced concrete beams exposed to fire (2013, positive): “Moreover, previous tests showed that concrete spalling occurs during the first 20-60 minutes in a fire [93].”
Study on mechanism of thermal spalling in concrete exposed to elevated temperatures (2011, background): “It could also be argued that surface spalling is really a subset of explosive spalling which is the most serious type of spalling [ 3 ].”
Geopolymer and Portland cement concretes in simulated fire (2011, background): “It has also been concluded by many researchers (Bazant and Thonguthai, 1979; Harada and Terai, 1997; Khoury, 2000; Phan et al., 2001) that concrete spalling is caused by the combination of pore pressures and differential thermal stresses.”
Behaviour of concrete structures in fire (2007, methodology): “It is caused by the me chan i cal forces gen er ated within the el e ment due to strong heat ing or cool ing, i. e. ther mal stresses, and/or, by the rapid ex pan sion of mois ture in the con crete in creas ing the pore wa ter pres sure within the struc ture.”
Evaluation of pore structures and cracking in cement paste exposed to elevated temperatures by X-ray computed tomography (2013, methodology): “Fire testing followed the designated standard fire-loading simulation curves [36].”
Effect of fire exposure on cracking, spalling and residual strength of fly ash geopolymer concrete (2014, background): “Khoury [16] proposed dissociation of Ca(OH)2 at 300 - 400 C, massive and sudden creep, usually causing failure at 600 C, dissociation of CaCO3 at 700 C, ceramic binding and complete water loss at 800 C and melting at 1200-1350 C.”
Fire Resistance Behaviour of Geopolymer Concrete: An Overview (2021, background): “In accordance with the proposal of Khoury [95], the disassociation of Ca(OH)2 at a temperature of 300–400 ◦C, as well as gigantic and abrupt creep, are more often than not the root cause of failure at 600 ◦C, at 700 ◦C dissociation of CaCO3, ceramic binding as well as absolute water losses at 800 ◦C”