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http://dx.doi.org/10.14481/jkges.2014.15.8.31

Mechanical Properties of Very Rapid Hardening Polymer Mortar for Concrete Repair  

Hong, Kinam (School of Civil Engineering, Chungbuk National University)
Shin, Junsu (B&T Engineering Co., Ltd.)
Han, Sanghoon (School of Civil Engineering, Chungbuk National University)
Seo, Dongwoo (Korea Institute of Construction Technology)
Ahn, Kwangkuk (B&T Engineering Co., Ltd.)
Publication Information
Journal of the Korean GEO-environmental Society / v.15, no.8, 2014 , pp. 31-37 More about this Journal
Abstract
In this study, mechanical properties of Very-Rapid Hardening Polymer (VRHP) mortar were investigated. To do it, 75 VRHP mortar specimens were tested by the compressive test, bending test, bonding test, freezing and thawing test, length variation test, and water absorption test. From the test results, it was confirmed that the bond strength of VRHP was higher than that of normal concrete by 50 %, and the resistance of freezing and thawing of VRHP was more excellent than normal concrete. In addition, length variation ratio and water absorption ratio of VRHP were smaller than those of normal concrete by 20 %. Therefore, It should be mentioned that VRHP can be successfully used as the material for repairing the crack of concrete structure.
Keywords
Very-rapid hardening polymer; Freezing and thawing; Length variation; Bonding strength;
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