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Advances in Materials Science and Engineering
Volume 2018, Article ID 6839350, 8 pages
Research Article

Effects of Reinforcing Fiber and Microsilica on the Mechanical and Chloride Ion Penetration Properties of Latex-Modified Fiber-Reinforced Rapid-Set Cement Concrete for Pavement Repair

1Department of Bio-Industry Mechanical Engineering, Kongju National University, Yesan 32439, Republic of Korea
2Department of Rural Construction Engineering, Kongju National University, Yesan 32439, Republic of Korea
3Department of Civil Engineering, University of Suwon, Hwaseong 18323, Republic of Korea
4Rural Research Institute, Korea Rural Community Corporation, Ansan 15634, Republic of Korea

Correspondence should be addressed to Chan-Gi Park;

Received 22 August 2017; Accepted 29 October 2017; Published 21 January 2018

Academic Editor: Young Hoon Kim

Copyright © 2018 Woong Kim 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.


This study evaluated the influence of reinforcement fiber type and microsilica content on the performance of latex-modified fiber-reinforced roller-compacted rapid-hardening cement concrete (LMFRCRSC) for a concrete pavement emergency repair. Experimental variables were the microsilica substitution ratio (1, 2, 3, and 4%), and the reinforcement fiber (jute versus macrosynthetic fiber). In the tests, compressive, flexural, and splitting tensile strength; chloride ion penetration resistance; and abrasion resistance were assessed. From the compressive and flexural strength tests with microsilica substitution, the 4-hour curing strength decreased as the microsilica substitution ratio increased. From the chloride ion penetration test, as the microsilica substitution ratio increased, chloride ion penetration decreased. The abrasion resistances increased with the substitution ratio of microsilica increase. Based on these test results, microsilica at a substitution ratio of 3% or less and macrosynthetic fiber as the reinforcement improved the performance of LMFRCRSC for a concrete pavement emergency repair and satisfied all of the target strength requirements.