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Title |
Micro-Cracks Control of LB-DECK Using Polymer Cement Concrete
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Keywords |
LB-DECK ; 미소균열 ; 폴리머 시멘트 콘크리트 ; 프리캐스트 콘크리트 패널 LB-DECK ; micro-cracks ; polymer cement concrete ; precast concrete panels |
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Abstract |
Micro-cracks with a width less than 0.1 mm in precast concrete panels do not cause structural problem, but they can cause problems in long term durability and concrete surfaces aesthetic, requiring additional repair costs. In this paper, polymer cement concrete is used to increase flexural tensile strength and to prevent micro-cracks due to construction loads on LB-DECK panels. Using 5% polymer-cement ratio, the panel crack moment is increased by improving flexural tensile strength and controlling visible micro-cracks during construction stage of LB-DECK.
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