An Experimental Study on Pervious Concrete

G. Amirthagadeshwaran, S. Ramesh, K. Selvi
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Abstract

Pervious concrete is a type of concrete with high porosity. It is used for concrete flatworks application that allows the water to pass through it, thereby reducing the runoff from a site and allowing ground water recharge. The high porosity is attained by highly interconnected voids content. Pervious concrete has water to cementicious material ratio of 0.36. The mixture is composed of cementicious materials, coarse aggregates and water with no fine aggregates. In this paper works porous concrete with fly ash as a blended material is tested for strength and permeability for assessing the adaptability of fly ash as a substitute material to cement. The percentage of fly ash is varied from 10% and 20%. Various tests like compressive strength, tensile strength and water permeability are done on the specimens and results are discussed.
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透水混凝土试验研究
透水混凝土是一种高孔隙率的混凝土。它用于混凝土平面工程,允许水通过它,从而减少场地的径流,并允许地下水补给。高孔隙度是由高度互连的孔隙含量获得的。透水混凝土的水胶料比为0.36。混合料由胶凝材料、粗集料和水组成,不含细集料。本文对掺加粉煤灰的工程多孔混凝土进行了强度和渗透性试验,以评价粉煤灰作为水泥替代材料的适应性。粉煤灰的掺量从10%到20%不等。对试件进行了抗压强度、抗拉强度、透水性等试验,并对试验结果进行了讨论。
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