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Advances in Materials Science and Engineering
Volume 2014 (2014), Article ID 919078, 7 pages
http://dx.doi.org/10.1155/2014/919078
Research Article

Impact of High Temperature on the Compressive Strength of ECC

College of Civil Engineering, Tongji University, Shanghai 200092, China

Received 20 January 2014; Accepted 13 June 2014; Published 25 June 2014

Academic Editor: Osman Gencel

Copyright © 2014 Xingyan Shang and Zhoudao Lu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The influence of different cooling regimes (quenching in water and cooling in air) on the residual mechanical properties of ECC (engineered cementitious composites) exposed to high temperature up to 800°C was discussed in this paper. The specimens quenching in water gained better mechanical properties than the ones cooling in air. The strengthening effect of quenching for specimens subjected to 800°C was more significant than for the ones subjected to 400°C. The microstructural characterization is examined before and after exposure to fire deterioration by using scanning electron microscopy. Results from the microtest well explained the mechanical properties variation of postfire specimens.