Paper Title:
Study on Residual Splitting Tensile Strength of HFCC after High Temperature
  Abstract

This paper presents the results of the splitting tensile strength of high fly ash content concrete (HFCC) after high temperature and analysis the degraded rules of the residual splitting strength subjected to high temperature and the replacements of cement by fly ash. The specimens were prepared with three different replacements of cement by fly ash 30%, 40% and 50% by mass and were tested after exposure to high temperature 250, 450, 550 and 650°C and room temperature respectively, compared with ordinary Portland cement concrete. The results showed that the splitting tensile strength sensitively decreased with the high temperature increased. Furthermore, the presence of fly ash was effective for improvement of the relative strength. The relative residual splitting strength of fly ash concrete was higher than those of ordinary Portland cement concrete except 30% fly ash replacement. Based on the experiments results, the alternating simulation formula to determine the relationship among relative residual strength, high temperature and fly ash replacement is developed by using regression of results, which provides the theoretical basis for the evaluation and repair of HFCC after high temperature.

  Info
Periodical
Advanced Materials Research (Volumes 243-249)
Edited by
Chaohe Chen, Yong Huang and Guangfan Li
Pages
5067-5070
DOI
10.4028/www.scientific.net/AMR.243-249.5067
Citation
F. P. Jia, Y. Cheng, Y. B. Sun, Y. Y. Wang, H. Sun, "Study on Residual Splitting Tensile Strength of HFCC after High Temperature", Advanced Materials Research, Vols. 243-249, pp. 5067-5070, 2011
Online since
May 2011
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Price
$32.00
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