硅酸盐通报2018，Vol.37Issue(6)：1960-1965,6.
基于可压缩堆积模型的透水混凝土配合比设计
Mix Proportion Design of Pervious Concrete Based on Compressible Packing Model
摘要
Abstract
Based on the compressible packing model and the total porosity was taken as the main mix proportion design parameter, a mix proportion design method of pervious concrete considering the influence of molding process and aggregate gradation was proposed.In this method, the graded aggregates with high dry packing density were selected based on the compressible packing model, the relationship between the packing density of the aggregates in pervious concrete and its dry packing density was established by introducing a scale factor λwhich reflected the influence of the molding method, then the aggregate mass per unit volume of pervious concrete was determined; and the paste volume and cement mass were calculated according to the aggregate mass and water-cement ratio.the pervious concrete has been formulated according to this method to validate it, the results demonstrate that the gap between the measured total porosity and the design total porosity is very small, which indicates that this method achieves the design object, and the strength variation tendency against the volumetric fraction of fine aggregates is similar to that of aggregate's dry packing density, but not the higher the dry packing density the higher the strength, the strength is also affected by the aggregates size.关键词
透水混凝土/配合比设计/全孔隙率/堆积密实度/可压缩堆积模型Key words
pervious concrete/mix proportion design/total porosity/packing density/compressible packing model分类
建筑与水利引用本文复制引用
陈晋栋,王武祥,张磊蕾,廖礼平,王爱军..基于可压缩堆积模型的透水混凝土配合比设计[J].硅酸盐通报,2018,37(6):1960-1965,6.基金项目
国家重点研发计划课题(2016YFC0701001) （2016YFC0701001）
