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Mechanical and Permeability Characteristics of Latex-Modified Pre-Packed Pavement Repair Concrete as a Function of the Rapid-Set Binder Content

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Department of Bio-Industry Engineering, Koungju National University, Yesan 340-702, Korea
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Department of Environmental Engineering, Andong National University, 1375 Gyeongdong Street, Andong 760-749, Korea
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Department of Rural Construction Engineering, Koungju National University, Yesan 340-702, Korea
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Author to whom correspondence should be addressed.
Academic Editor: Jorge de Brito
Materials 2015, 8(10), 6728-6737; https://doi.org/10.3390/ma8105339
Received: 31 July 2015 / Revised: 13 September 2015 / Accepted: 28 September 2015 / Published: 1 October 2015
(This article belongs to the Section Advanced Composites)
We evaluated the strength and durability characteristics of latex-polymer-modified, pre-packed pavement repair concrete (LMPPRC) with a rapid-set binder. The rapid-set binder was a mixture of rapid-set cement and silica sand, where the fluidity was controlled using a latex polymer. The resulting mix exhibited a compressive strength of ¥21 MPa and a flexural strength of ¥3.5 MPa after 4 h of curing (i.e., the traffic opening term for emergency repairs of pavement). The ratio of latex polymer to rapid-set binder material was varied through 0.40, 0.33, 0.29, and 0.25. Mechanical characterization revealed that the mechanical performance, permeability, and impact resistance increased as the ratio of latex polymer to rapid-set binder decreased. The mixture exhibited a compressive strength of ¥21 MPa after 4 h when the ratio of latex polymer to rapid-set binder material was ¤0.29. The mixture exhibited a flexural strength of ¥3.5 MPa after 4 h when the ratio of latex polymer to rapid-set binder material was ¤0.33. The permeability resistance to chloride ions satisfied 2000 C after 7 days of curing for all ratios. The ratio of latex polymer to rapid-set binder material that satisfied all conditions for emergency pavement repair was ¤0.29. View Full-Text
Keywords: durability; mechanical properties; latex polymer; pavement repair concrete; rapid-set cement binder durability; mechanical properties; latex polymer; pavement repair concrete; rapid-set cement binder
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Han, J.-W.; Jeon, J.-H.; Park, C.-G. Mechanical and Permeability Characteristics of Latex-Modified Pre-Packed Pavement Repair Concrete as a Function of the Rapid-Set Binder Content. Materials 2015, 8, 6728-6737.

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