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Title |
Long-Termed Behavior and Durability of Foam-Mixed Concrete Containing Porous Aggregates
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Keywords |
기포혼합콘크리트 ; 바텀애시 ; 건조수축 ; 크리프 ; 동결융해 ; 탄산화 Foam-mixed concrete ; Bottom ash ; Drying shrinkage ; Creep ; Freeze-thaw ; Carbonation |
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Abstract |
The technology developed for the decrease of applying loads and self-weight of a structure is to improve conventional Foam Cement Banking Method (FCB) by applying mixed slurry of bottom ash, cement and foams. Since the foam-mixed concrete, which is a major material of the Bottom ash-mixed Light weight concrete Banking method (BLB) developed, contains mineral admixture such as cement, the behavior shows time-dependent deformation and deterioration of durability due to environmental exposure. Thus, this study is subject to figure out the characteristics of long-termed behavior and durability of the developed method by carrying out experiments for schemed parameters, which are considered to be factors affecting mainly on concrete's characteristics from mechanical analysis. As results of tests, it was found that the developed concrete offers higher resistance than conventional foamed concrete in terms of long-termed behaviors associated with drying shrinkage and creep, and durability problems of freeze-thaw and carbonation processes, especially with addition of bottom ash.
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