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Shock and Vibration
Volume 2016 (2016), Article ID 2391476, 7 pages
http://dx.doi.org/10.1155/2016/2391476
Research Article

Durability of Modified Expanded Polystyrene Concrete after Dynamic Cyclic Loading

Institute of Geotechnical Engineering, Southeast University, Nanjing 210018, China

Received 2 July 2015; Revised 28 October 2015; Accepted 29 October 2015

Academic Editor: Salvatore Russo

Copyright © 2016 Wenbo Shi et al. 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

EPS concrete was produced by mixing the expanded polystyrene spheres (EPS) and polymer emulsion and thickener to the matrix concrete, and this concrete had good vibration energy absorption characteristics. Based on the experimental data obtained on EPS volume ratio of 0%, 20%, 30%, and 40% by replacing matrix or coarse aggregate, the two design styles had nearly the same compressive strength. By applying frequency of 5 Hz, 50000 or 100000 times, 40 KN, 50 KN, and 60 KN cyclic loading, it is shown that the higher the inclusion size was, the lower the compressive strength of the EPS concrete would be; the larger the applying dynamic cyclic load was, the more obvious the compressive strength changing would be. Meanwhile, the strength of EPS concrete had no evident change after durability test. The results of this research had practical significance on using EPS concrete in some long-term cyclic dynamic load engineering.