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안영기 ( Ahn Young-ki ),정영준 ( Chung Young-jun ),전철수 ( Jeon Cheol-su ),홍수정 ( Hong Soo-jung ) 한국구조물진단유지관리공학회 2002 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.6 No.1
Traffic control due to the maintenance and repair of wearing surface on the bridge deck increases the social cost as well as the construction cost in the conventional asphalt overlay system. The aim of this study is to find the feasibility of alternatives of asphalt overlays on the bridge deck, especially the Latex Modified Concrete(LMC) overlays. This study focused on the feasibility of bridge deck overlays by comparing the strength development properties of conventional concrete and LMC. With the preliminary test results and previous researches, the mixing ratios of domestic and foreign-produced LMC were determined, respectively. Due to the ball bearing and the dispersion effect of SB latex polymer and surfactant, the workability of LMC increased in spite of the lower water cement ratio. With this workability, flexural strength and other properties such as cohesion, waterproofness, resistance to infiltration of the deicing agent, meeded for the bridge deck overlays, increased.