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Advances in Materials Science and Engineering
Volume 2012 (2012), Article ID 345214, 6 pages
http://dx.doi.org/10.1155/2012/345214
Research Article

Experimental Study on the Compressive Strength of Big Mobility Concrete with Nondestructive Testing Method

1School of Civil Engineering, Qingdao Technological University, Qingdao 266033, China
2State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China
3Research Center for Structural Health Monitoring and Control, School of Civil Engineering, Dalian University of Technology, Dalian 116023, China
4Weifang Municipal Engineering Construction Department, Weifang 261031, China

Received 12 July 2012; Accepted 14 October 2012

Academic Editor: Rabah Khenata

Copyright © 2012 Huai-Shuai Shang 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

An experimental study of C20, C25, C30, C40, and C50 big mobility concrete cubes that came from laboratory and construction site was completed. Nondestructive testing (NDT) was carried out using impact rebound hammer (IRH) techniques to establish a correlation between the compressive strengths and the rebound number. The local curve for measuring strength of the regression method is set up and its superiority is proved. The rebound method presented is simple, quick, and reliable and covers wide ranges of concrete strengths. The rebound method can be easily applied to concrete specimens as well as existing concrete structures. The final results were compared with previous ones from the literature and also with actual results obtained from samples extracted from existing structures.