Compressive strength and deformation of selfcompacting concrete at high temperature

Title: Compressive strength and deformation of selfcompacting concrete at high temperature
Author(s): J. Tao, Y. Yuan, L. Taerwe
Paper category : conference
Book title: The 50-year Teaching and Research Anniversary of Prof. Sun Wei on Advances in Civil Engineering Materials
Editor(s): C. Miao, G. Ye and H. Chen
Print-ISBN: 978-2-35158-098-1
e-ISBN: 978-2-35158-099-8
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 251 - 261
Total Pages: 11
Nb references: 7
Language: English

Abstract: The main research focuses on the hot properties of self-compacting concrete at high temperature. The total strain of concrete at high temperature consists of four strain components that are, instantaneous stress-induced strain, free thermal strain, transient strain and creep. The instantaneous stress-induced strain can be obtained by the compressive stressstrain curve under stabilized temperature field. It is very important to research the stress-strain relationship at high temperature for establishing the constitutive model and stress analysis of self-compacting concrete structure.
The compressive strength and deformation properties of normal strength self-compacting concrete with addition of polypropylene fiber, high strength self-compacting concrete under different temperature were studied in this paper. The relationship between the compressive strength and temperature of self-compacting concrete was obtained, and the comparison with the normal SCC and high-strength concrete was done. The relationship between stress-strain curve and temperature were studied in this paper. The functions of compressive strength, strain at peak stress, elastic modulus and strain-stress relationship were brought forward. The instantaneous stress-induced strain can be obtained by the strain-stress function, which offers a basis for the establishment of constitutive model at high temperature.

Online publication: 2010-04-22
Publication type : full_text
Public price (Euros): 0.00