【作者】 储诚富； 李栋； 刘云； 张飞；

【Author】 CHU Chengfu;LI Dong;LIU Yun;ZHANG Fei;Hefei University of Technology,School of Resources and Environmental Engineering;

【机构】 合肥工业大学资源与环境工程学院；

【摘要】 通过一系列表征试验,系统地研究了利用工业废料制备的碱激化控制性低强度材料(CLSM)的性能,深入探究了工业废料粉煤灰、电石渣和废弃玻璃对控制性低强度材料(CLSM)性能的影响。结果表明,氢氧化钠溶液作为碱性激化剂,随着固体氢氧化钠掺量的增加,CLSM混合物的流动性先增加后降低,而随着废弃玻璃(骨料)量的增加,CLSM混合物的流动性显著增大。当碎玻璃/总粘结剂质量比和电石渣/总粘结剂含量比分别为1.5和0.2时,固体氢氧化钠质量按1.5%～2.5%计算,所制备的CLSM满足ACI229R建议的二次开挖最大强度(2.1MPa)的要求。更多还原

【Abstract】 A series of characterization tests were aimed to systematically study the characteristics of alkali-activated controlled low-strength materials(CLSM) utilizing industrial wastes in the present study.The effects of industrial wastes such as fly ash,calcium carbide slag and waste glass on the properties of controlled low-strength materials(CLSM) were investigated.The results showed that the flowability of CLSM mixture increased first and then decreased with the increase of solid NaOH,an alkaline activator,while the flowability of CLSM mixture increased significantly with the increase of waste glass(aggregate) content.The solid NaOH amount which satisfies the maximum strength(2.1 MPa) requirement for future re-excavation as suggested in ACI 229 R was found to be 1.5-2.5% by weight in the CLSM mixture when a waste glass/total binder ratio and calcium carbide slag/total binder ratio were 1.5 and 0.2,respectively.更多还原