垃圾焚烧底渣透水混凝土的试验研究

Study of Botton Ash Pervious Concrete

以垃圾焚烧底渣作为集料,通过配合比设计和试验对比,研究骨料粒径、水灰比等对透水混凝土性能的影响。随着水灰比的增加,抗压强度增加,透水系数降低,垃圾焚烧底渣的粒径越大,透水系数也越高,但抗压强度也会降低。水灰比为0.55时抗压强度大于20MPa,骨料粒径为12.5mm时,透水系数大于0.5mm/s。

The effects of aggregate size and water cement ratio on the performance of pervious concrete were studied through mix design and experimental comparison.With the increase of water cement ratio,the compressive strength increases and the permeability coefficient decreases.The larger the particle size of botton ash incineration slag is,the higher the permeability coefficient is,but the compressive strength also decreases.When the water cement ratio is 0.55,the compressive strength is greater than 20MPa,and when the aggregate size is 12.5mm,the permeability coefficient is greater than 0.5mm/s.