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Fundamental Properties of Porous Concrete According to the Sizes of Aggregate
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 Title & Authors
Fundamental Properties of Porous Concrete According to the Sizes of Aggregate
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 Abstract
Recently, porous concrete has been used for the purpose of decreasing the load of earth environment. It consists solely of cement, water and uniform-sized coarse aggregate. And its fundamental properties will be considerably affected by the physical properties of aggregate because the aggregate occupies for the most part in its mix proportion. For such a reason, this study was carried out to investigate the influence of the sizes and kinds of aggregate for the fundamental properties of porous concrete. It showed that the fundamental properties of porous concrete were the similar value in all sizes of aggregate except in the case of using the 2.5∼5㎜ aggregate and were varied according to the kinds of aggregate. In particular, compressive strength of porous concrete using 2.5∼5㎜ aggregate was more higher than that using other aggregate, and its void ratio and coefficient of permeability was lower. And the maintenance capacity of permeability of porous concrete was varied by the sizes and the kinds of aggregate. In particular, it was greatly decreased in case of using the 2.5∼5㎜ aggregate. And unlike dynamic modulus of elasticity of ordinary concrete, that of porous concrete was very high value in early ages and was slowly increased after that time.
 Keywords
porous concrete;sizes and kinds of aggregate;compressive strength;coefficient of permeability;
 Language
Korean
 Cited by
1.
결합재량에 따른 포러스 폴리머 콘크리트의 공극률과 강도 및 식생 블록 내 초기 생장 특성,성찬용;김영익;

한국농공학회논문집, 2010. vol.52. 6, pp.101-110 crossref(new window)
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