再生骨料在透水混凝土中的应用研究

Research on application of recycled aggregate in pervious concrete

再生骨料在普通混凝土的生产中已得到了较为广泛的应用,但在透水混凝土等特种混凝土中则应用极少。研究利用再生骨料取代天然骨料进行了透水混凝土的配制,通过改变再生骨料的取代率得到不同组的样品,并对样品进行了抗压强度、透水系数、劈裂抗拉强度等指标的测试,发现随着再生骨料取代率的升高,样品的抗压强度先降低再升高,透水系数无明显规律,劈裂抗拉强度基本保持不变。

Recycled aggregate is widely used in regular concrete production,but its application on special concrete is less. In this research,the sample of pervious concrete is prepared by recycled aggregate and natural aggregate,and change the proportion of recycled aggregate to take different group of sample. The compressive strength,permeability coefficient and splitting tensile strength of the sample has been tested. The results show that as the proportion of recycled aggregate rises,the compressive strength decreased and then increased,the permeability coefficient has no obvious law,and the splitting tensile strength basically remain unchanged.