利用铜矿尾砂研制低强度可控性填料  

Developing Controlled Low Strength Material by Use of Copper Ore Tailing

作　　者：成岳[1,2] 李燕孙[1,2] 李蒋超[1,2] 

机构地区：[1]江西省先进陶瓷材料重点实验室,江西景德镇333001 [2]景德镇陶瓷学院材料学院,江西景德镇333403

出　　处：《环境科学与技术》2011年第9期170-173,共4页Environmental Science & Technology

基　　金：本研究成果已经申请专利(申请号200910115682X)

摘　　要：利用铜矿尾砂、粉煤灰、水泥以及加气剂等,混合搅拌成泥浆体,振动成型,制备出低强度可控性填料（CLSM）。试验表明：以水泥12.9%、铜矿尾砂（细集料）22.6%、加气剂3.2%、粉煤灰12.9%等工业废弃物,加水48.4%,固液比控制在（14-15）：（15-16）之间,制得的CLSM制品,抗压强度0.35-2.00 MPa,28 d抗压强度达0.5 MPa,具有低强度、高流动性的特点,可用于市政工程、路基填料、矿井回填等,比传统填料更有科学实用性,同时减少尾砂的环境污染,达到废弃物资源化的目的。Experiment was done to make a new-typed controlled low strength material（CLSM）with some industrial wastes including copper ore tailing,coal fly ash and gas-filling agent,and a portion of cement as well as water.The experiment resulted in an optimum formula,with which compressive strength of the CLSM could reach the range of 0.35-2.00MPa,the 28d compressive strength being 0.5mPa.The result suggested the new CLSM featuring more of low-intensity and high-mobility than the conventional filler used in civil engineering could be used in roadbed filling and mine backfilling.

关 键 词：CLSM 铜矿尾砂 粉煤灰 水泥 加气剂 

分 类 号：X705[环境科学与工程—环境工程] TU528[建筑科学—建筑技术科学]