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Advances in Materials Science and Engineering
Volume 2016, Article ID 8606505, 9 pages
http://dx.doi.org/10.1155/2016/8606505
Research Article

Experimental Study on the Properties of Concrete Mixed with Iron Ore Tailings

1College of Civil Engineering and Architecture, Shandong University of Science and Technology, Qingdao 266590, China
2College of Architecture and Civil Engineering, Liaocheng University, Liaocheng 252000, China
3State Key Laboratory of Mining Disaster Prevention and Control Cofounded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, China
4Shandong Province Key Laboratory of Civil Engineering Disaster Prevention and Mitigation, Shandong University of Science and Technology, Qingdao 266590, China

Received 4 December 2015; Revised 13 March 2016; Accepted 28 March 2016

Academic Editor: Juan J. Del Coz Díaz

Copyright © 2016 Zhong-xi Tian 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

The objective of this study is to evaluate the modified performance of concrete with mixing of iron ore tailings in order to solve the shortage of natural sand and make full use of industrial waste. Firstly, the raw materials of mixing were analyzed, and the test ratio was determined. Secondly, the workability and mechanical property of concrete specimens with different amounts of iron ore tailings as replacement were tested. Results show that 35% replacement of natural aggregate by iron ore tailings is optimal. Finally, tests of impermeability, frost resistance, and carbonation resistance were further performed for the concrete specimens with optimal amount of iron ore tailings. The compression performance of the specimens after a durability test was determined. The change in the mechanical properties of the specimens was obtained after seepage, freezing-thawing, and carbonation. Findings showed that the performance of the concrete with 35% replacement of iron ore tailings is basically equivalent to that of natural sand concrete. Hence, it can be utilized in engineering applications.