碱激发瓷砖粉尘固化黄土受压性能试验研究  

Experimental study on compressive performance of alkali-activated tile dust solidification loess

作　　者：梁小天 刘博 王琛琦 李荣丽 李萌 LIANG Xiao-tian;LIU Bo;WANG Chen-qi;LI Rong-li;LI Meng

机构地区：[1]西安工程大学城市规划与市政工程学院,陕西西安710048

出　　处：《砖瓦》2025年第3期20-23,共4页Brick-tile

基　　金：西安工程大学大学生创新创业训练计划资助项目“碱激发下瓷砖粉尘对土固化效率影响研究”(S202310709099)。

摘　　要：研究将瓷砖粉掺入黄土中改善黄土物理力学性能,将其与矿渣、混凝土废料相结合,在优化黄土物理力学性能同时,为瓷砖粉尘等固体废弃物的有效处理提供途径。设计正交试验,采用石灰和硅酸钠粉末作为激发剂,系统评估了碱激发条件下固体废弃物对黄土固化效果的影响。结果表明,在不同的激发环境下,当瓷砖粉尘与混凝土废料的比例保持在15%~25%、矿渣含量控制在5%~10%时,可以提高黄土抗压强度。其中,在石灰与硅酸钠联合激发体系下,当瓷砖粉尘和混凝土废料的掺量均为25%、矿渣掺量为10%时,试样的抗压强度显著提升至11.7MPa。In this study,tile powder is mixed into loess to improve the physical and mechanical properties of loess,and combined with slag and concrete waste,which not only optimized the physical and mechanical prop-erties of loess,but also provided a way for the effective treatment of solid wastes such as ceramic tile dust.An orthogonal test was designed,and lime and sodium silicate powder are used as activators to systematically eval-uate the effect of solid waste on the solidification effect of loess under alkali excitation conditions.The results show that the compressive strength of loess can be improved when the ratio of tile dust to concrete waste is kept at 15%~25%and the slag content is controlled at 5%~10%under different excitation environments.Among them,under the combined excitation system of lime and sodium silicate,the compressive strength of the sample is significantly increased to 11.7MPa when the content of tile dust and concrete waste is 25%and the content of slag is 10%.

关 键 词：瓷砖粉尘 黄土 固化 抗压强度 碱激发 

分 类 号：TU411.3[建筑科学—岩土工程]