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作 者:吴金睿 徐迅 肖绍彬 曹宽宽 李晓阁 WU Jin-rui;XU Xun;XIAO Shao-bin;CAO Kuan-kuan;LI Xiao-ge(School of Civil Engineering and Architecture,Southwest University of Science and Technology,Mianyang 621010,China;Sichuan Kehong Oil and Gas Engineering Co Ltd,Chengdu 610051,China;China Railway Construction Group Co Ltd,Beijing 100040,China)
机构地区:[1]西南科技大学土木工程与建筑学院,绵阳621010 [2]四川科宏石油天然气工程有限公司,成都610051 [3]中铁建设集团有限公司,北京100040
出 处:《武汉理工大学学报》2024年第1期8-14,共7页Journal of Wuhan University of Technology
摘 要:为提高固化淤泥的质量,选用轻质、快凝、低碱、耐磨的碱式硫酸镁水泥作为主固化剂,通过力学试验与微观试验,探明了固化剂的效果与机理。结果表明:使用碱式硫酸镁水泥基复合固化剂后,可使固化土的28d无侧限抗压强度达到1400kPa,固硫灰与碱式硫酸镁水泥发生化学反应,生成物可以有效提高固化土的水稳性及固化土微观结构的稳定性,碱式硫酸镁水泥基固化淤泥的效果优于硫氧镁水泥。To improve the quality of solidified sludge,this article selects lightweight,fast setting,low alkali,and wearresistant alkaline magnesium sulfate cement as the main curing agent.Through mechanical and microscopic tests,the effect and mechanism of the curing agent are explored.The results show that after using alkaline magnesium sulfate cementbased composite curing agent,the 28day unconfined compressive strength of the solidified soil can reach 1400kPa.The chemical reaction between sulfur fixing ash and alkaline magnesium sulfate cement can effectively improve the water stability and microstructure stability of the soil.The effect of alkaline magnesium sulfate cement on solidification of sludge is better than that of magnesium oxysulfate cement.
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