标题：Study on Proportioning Test of Coal Solid Waste Paste Filling Material
作者：Zhang, Xinguo; Bai, Jiwen; Wang, Heng; Jiang, Ning
作者机构：[Zhang, Xinguo; Bai, Jiwen; Jiang, Ning] Shandong Univ Sci & Technol, State Key Lab Mine Disaster Prevent & Control, Qingdao 266510, Shandong, Peoples 更多
会议名称：1st International Conference on Energy and Environmental Protection (ICEEP 2012)
会议日期：JUN 23-24, 2012
来源：NATURAL RESOURCES AND SUSTAINABLE DEVELOPMENT II, PTS 1-4
关键词：pressed coal under buildings; water bodies; railways and above confined; water; paste filling; uniform test; material proportion
摘要：In order to excavate coal resourses which is under buildings, water bodies, railways and above confmed water, a complete technology of new pumping paste comprehensive mechanization mining technique which is safety, high efficiency, high mining rate and environmental protection has been formed, the study on filling material is very important. In this thesis, the uniform experiment is used comprehensively on the proportioning test of mine solid waste such as coal gangue, fly ash etc. The results showed: (1) the collapsed slump of paste will increase obviously with the increase of the content of fly ash; (2) the paste stratified degree will decrease regularly with the increase of the content of fly ash; (3) the paste bleeding rate will reduce obviously with the increase of the content of fly ash; (4) the paste strength will increase gradually with the the increase of cementing material; (5) early strength agent can improve the early strength of filling test blocks to some extent, but the later strength growth is not obvious.