순환굵은골재, 황토, 고로슬래그 미분말 및 마섬유를 사용한 레인가든 구조물 콘크리트의 최적배합설계 및 역학적 특성
Optimum Mix Proportion and Mechanical Properties of Rain Garden Structure Concrete using Recycled Coarse Aggregate, Hwang-Toh, Blast Furnace Slag and Jute Fiber
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초록
In this study, the optimum mix proportions of rain garden structure concrete were decided and the mechanical properties wereevaluated. Experimental parameters were blast furnace slag, hwang-toh, recycled aggregates and natural jute fibers. The targetcompressive strength and chloride ion penetration were more than 24 MPa and less than 1000 coulombs, respectively. The responsesurface method was used for statistical optimization of experimental results. The optimal mixing ratios of the blast furnace slag,hwang-toh, recycled coarse aggregate and jute fiber volume fraction were determined 59.98 %, 8.74 %, 12.12 % and 0.2 %, respectively. The compressive strength, flexural strength and chloride ion penetration test results of optimum mix ratio showed that the 24.56 MPa,3.88 MPa and 999.08 columbs, respectively.
Abstract
In this study, the optimum mix proportions of rain garden structure concrete were decided and the mechanical properties wereevaluated. Experimental parameters were blast furnace slag, hwang-toh, recycled aggregates and natural jute fibers. The targetcompressive strength and chloride ion penetration were more than 24 MPa and less than 1000 coulombs, respectively. The responsesurface method was used for statistical optimization of experimental results. The optimal mixing ratios of the blast furnace slag,hwang-toh, recycled coarse aggregate and jute fiber volume fraction were determined 59.98 %, 8.74 %, 12.12 % and 0.2 %, respectively. The compressive strength, flexural strength and chloride ion penetration test results of optimum mix ratio showed that the 24.56 MPa,3.88 MPa and 999.08 columbs, respectively.
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