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Title |
Optimum Mix Design of High-Performance Concrete for Bridge Deck Overlay by Statistical Method
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Authors |
원종필 ; 서정민 ; 이창수 ; 박해균 ; 이명섭 |
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Keywords |
고성능 콘크리트; 라텍스개질 콘크리트; 교면포장; 최적배합설계; Box Behnken 설계; Box Behnken Design; bridge deck overlay; high performance concrete; latex modified concrete; optimum mix design |
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Abstract |
The objective of this study is to optimize the use of mineral admixtures (silica fume, fly ash, and blast furnace slag) in high-performance concrete for bridge deck overlay. For this purpose, high-performance concrete, incorporating mineral admixtures, was tested for compressive strength and permeability. The Box Behnken design was used to determine the optimum mix proportions of the mineral admixtures. The optimized mix compositions were then technically evaluated. Test results are compare with the performance specification for high performance concrete overlay on bridge deck. The optimum mix proportions were shown to possess acceptable properties. Also, it is possible to save the construction and materials costs result from a reduction In actual material cost and from the use of widely avaliable truck mixers instead of mobile mixers.
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