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工业废渣的资源化是解决工业废渣环境污染的有效途径之一。以粉煤灰和高炉矿渣为固化剂,石灰为碱性激发剂,对黏土进行加固。通过室内试验的方法,分析固化剂掺入量、养护龄期等对固化土无侧限抗压强度、pH值和饱和度等发展规律的影响。试验结果表明,固化土的无侧限抗压强度随固化剂掺入量的增加而增大,随养护龄期的增加而增大,提出一个综合反映固化剂掺入量、养护龄期和压实度等因素对固化土强度影响规律的综合影响因子,固化土强度与综合影响因子呈负指数函数关系;粉煤灰+石灰和高炉矿渣+石灰可有效改良土体无侧限抗压强度特性;石灰是一种有效的碱性激发剂,可提供工业废渣发生火山灰反应的高碱性环境。试验成果为工业废渣改良不良土质的设计提供试验依据。
Industrial waste recycling is one of the effective ways to solve the environmental pollution of industrial waste. Fly ash and blast furnace slag as the curing agent, lime as an alkaline activator, the clay reinforcement. Through laboratory tests, the influences of curing agent incorporation and curing age on the unconfined compressive strength, pH and saturation of cured soil were analyzed. The experimental results show that the unconfined compressive strength of cured soil increases with the amount of curing agent added, increases with the curing age, and presents a comprehensive reflection of curing agent incorporation, curing age and pressure Solid degree and other factors on the strength of cured soil comprehensive impact factors, soil strength and comprehensive impact factors showed a negative exponential function; fly ash + lime and blast furnace slag + lime can effectively improve the unconfined compressive strength of soil properties Lime is an effective alkaline activator that provides an overbased environment in which pozzolanic reactions occur in industrial waste. The test results provide experimental basis for the design of bad soil quality for industrial waste residue improvement.