改善透水混凝土性能方法的试验研究

Methods of improving performance on pervious concrete

为了改善透水混凝土的性能,采用单因素试验方法,研究了成型方法、水灰比、骨灰比、骨料粒径及聚合物等对透水混凝土主要性能的影响。结果表明:适当的成型方法和参数能使透水混凝土获得较好的性能指标;骨灰比、骨料粒径是影响透水混凝土抗压强度的关键因素,水灰比的变化对透水混凝土的抗压强度影响不大,对透水系数影响较大;聚合物的掺入能够改善透水混凝土的性能。

In order to improve the performance of pervious concrete, by using the single factor test method this paper systematically researched the effects of compressive strength and permeability coefficient of pervious concrete along with the changes of shaping method, mass ratio of water to cement, mass ratio of aggregate to cement, particle size of aggregate and the dosage of polymer. The results indicate that the appropriate shaping method and parameters can achieve high performance of permeable concrete, mass ratio of aggregate to cement and particle size of aggregate are the key factors affecting the compressive strength of pervious concrete, mass ratio of water to cement has minor effect on the compressive strength and major effect on permeability coefficient of pervious concrete, combining with polymer can improve the performance of pervious concrete.