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Evaluation on Performance of Repair Mortar Used for Pre-wetting Spray Method  

Nam, Yong-Hyuk (중앙크리텍(주), 기술개발부)
Chung, Young-Jun (인본건설(주), 기술연구소)
Jang, Suk-Hwan (대진대학교, 건설시스템공학과)
An, Young-Ki (인본건설(주))
Kim, Sung Chil (경기대학교, 토목환경공학부)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.9, no.4, 2005 , pp. 235-242 More about this Journal
Abstract
This study is on the evaluation of performance of polymer cement mortar which is used for pre-wetting spray method. Pre-wetting spray method is an epoch-making method to repair concrete structures damaged, which is added a small quantity water preciously to dry mortar to reduce dust and rebound and spray mortar mixed with fixed quantity water at nozzle before spray. The result showed that physical performance such like compressive, flexural and adhesive strength of polymer cement mortar, TS 100 used for pre-wetting spray method was superior to other repair mortar. Also durable performance such as resistance on permeability of chloride ion, carbonation, chemical and freezing-thawing was excellent.
Keywords
Pre-wetting Spray; Polymer Cement Mortar; Repair;
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