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- 混凝土与制品
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制备工艺对透水型碎石混凝土强度和透水性能的
作者：张敏特1，2，朱袁洁2，夏晗2，何辉3，沈娇2，吴庆2
（1.江苏科技大学 深蓝学院，江苏 镇江 212003；2.江苏科技大学 土木工程与建筑学院，江苏 镇江 212000；
3.浙江国泰建设集团有限公司，浙江 杭州 311200）
摘要：针对透水混凝土的透水系数与抗压强度不易同时满足的问题，通过对碎石混凝土试块制备中不同的投料、成型、养护工艺进行对比，探讨透水性、抗压强度均满足路面铺设要求的混凝土制备工艺。结果表明，通过净石裹浆的拌合工艺，配合击实法成型，使试块密度达到1.96~2.07 g/cm3，经标准蒸汽养护28 d后可使试块透水系数达到3 mm/s以上，抗压强度达到20~22 MPa，满足一般交通路面使用要求。
关键词：透水混凝土；制备工艺；海绵城市；透水系数；抗压强度
中图分类号：TU528.2 文献标识码：A 文章编号：1001-702X（2018）12-0014-04
Study on effect of producing method on strength and permeability of pervious crushed ballast concrete
ZHANG Minte1，2，ZHU Yuanjie2，XIA Han2，HE Hui3，SHEN Jiao2，WU Qing2
（1.Deep Blue Honors School，Jiangsu University of Science and Technology，Zhenjiang 212003，China；
2.School of Civil Engineering and Architecture，Jiangsu University of Science and Technology，Zhenjiang 212000，China；
3.Zhejiang Guo-Tai Construction Corporation，Hangzhou 311200，China）
Abstract：Considering the problem that the permeability and the compressive strength of pervious concrete are not easy to be satisfied at the same time，this paper compares the different feeding，shaping and curing processes in the preparation of concrete test block，and explores the preparation process of concrete test block with permeability and compressive strength meeting the requirements of pavement laying. The results show that the test block density can reach 1.96~2.07 g/cm3 by the method of "net stone slurry" mixing and "compaction method". Finally，after the standard steam curing for 28 days，the water permeability coefficient of the test block can reach 3 mm/s or more，compressive strength reaches 20~22 MPa，meeting the general requirements of traffic pavement.
Key words：pervious concrete，preparation process，sponge city，permeability coefficient，compressive strength