Paper Title:

Crack Resistance Evaluating of HSC Based on Thermal Stress Testing

Periodical Advanced Materials Research (Volumes 168 - 170)
Main Theme Advances in Building Materials
Edited by Lijuan Li
Pages 716-720
DOI 10.4028/www.scientific.net/AMR.168-170.716
Citation Bo Chen et al., 2010, Advanced Materials Research, 168-170, 716
Online since December, 2010
Authors Bo Chen, Yue Bo Cai, Jian Tong Ding, Yao Jian
Keywords Crack Resistance, Fly Ash (FA), High Strength Concrete, Thermal Stress
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Abstract

In order to evaluate the crack resistance of high strength fly ash concrete, concretes with different contents of silica fume and fly ash were compared with same strength grade by adjusting water to binder ratio. Compared with the concrete with 5% silica fume plus 35% fly ash,concrete with 40% fly ash has same mechanical properties and tensile strain as well as lower drying shrinkage. Complex crack resistance of high strength fly ash concretes were evaluated by Temperature Stress Testing Machine (TSTM). The results show that fly ash concretes have outstanding crack resistance because of higher allowable temperature differential and lower cracking temperature.