- 目录
- 新型墙体材料
- 首页
免烧结煤矸石透水砖的试验研究
作者：李学军，李珠，赵林，王占峰
（太原理工大学 建筑与土木工程学院，山西 太原 030024）
摘要：研究以煤矸石为主要原料制备免烧结煤矸石透水砖，探讨了煤矸石粒径、煤矸石与水泥质量比、成型压力对免烧结煤矸石透水砖的透水系数和劈裂抗拉强度的影响。试验结果表明，较优工艺参数为煤矸石粒径为4.75～9.5 mm，煤矸石与水泥的质量比为3∶1，成型压力为4 MPa，采用该工艺参数所制备的透水砖性能较优，其透水系数为2.34×10-2 cm/s，劈裂抗拉强度为1.4 MPa。
关键词：透水砖；煤矸石；免烧结；劈裂抗拉强度；透水系数
中图分类号：TU522.1+3 文献标识码：A 文章编号：1001-702X（2019）01-0072-03
Experimental study on non-fired coal gangue permeable bricks
LI Xuejun，LI Zhu，ZHAO Lin，WANG Zhanfeng
（College of Architecture and Civil Engineering，Taiyuan University of Technology，Taiyuan 030024，China）
Abstract：The coal gangue as the main raw material is studied to prepare the coal gangue pervious brick. The effects of the particle size of the gangue，the mass ratio of the coal gangue and cement and the molding pressure on the permeability coefficient and splitting tensile strength of the coal gangue pervious brick are discussed. The test results show that the better technological parameters are 4.75~9.5 mm，the mass ratio of coal gangue and cement is 3∶1，and the molding pressure is 4 MPa. The performance of the permeable brick prepared by this process parameter is better，the permeability coefficient is 2.34×10-2 cm/s and the splitting tensile strength is 1.4 MPa.
Key words：permeable bricks，coal gangue，non-fired，splitting tensile strength，permeability coefficient