石灰石粉对泡沫轻质土性能影响研究  

Study on the Effect of Limestone Powder on the Performance of Foamed Lightweight Concrete

作　　者：朱云升[1] 华瑞阳 陈庸 刘洋 ZHU Yunsheng;HUA Ruiyang;CHEN Yong;LIU Yang(School of Trans portation and Logistics Engineering,Wuhan University of Technology,Wuhan 430063,China;Sichuan Trans portation Construction Group Co.Ltd.,Chengdu 610047,China)

机构地区：[1]武汉理工大学交通与物流工程学院,武汉430063 [2]四川省交通建设集团有限责任公司,成都610047

出　　处：《武汉理工大学学报(交通科学与工程版)》2025年第2期356-361,共6页Journal of Wuhan University of Technology(Transportation Science & Engineering)

摘　　要：通过制备不同石灰石粉掺量的泡沫轻质土,并对其进行性能试验,探究了石灰石粉掺量对泡沫轻质土抗压强度、含水率、吸水率、干燥收缩性和孔径分布的影响规律.结果表明:适量石灰石粉的掺入可以改善泡沫轻质土的性能,20%的石灰石粉掺量可以使泡沫轻质土的7 d和28 d抗压强度分别提高22.6%和19.4%,同时使吸水率和干燥收缩率分别降低30.72%和11.3%;10%至30%的石灰石粉掺量可以使泡沫轻质土的孔径分布更加均匀.Through the preparation of foamed lightweight soil with different limestone powder content and the performance test,the influence of limestone powder content on compressive strength,mois-ture content,water absorption,drying shrinkage and pore size distribution of foamed lightweight soil was explored.The results show that the proper amount of limestone powder can improve the proper-ties of foamed lightweight soil,and 20%limestone powder can increase the compressive strength of foamed lightweight soil by 22.6%and 19.4%at 7 and 28 days respectively,while reducing the water absorption and drying shrinkage by 30.72%and 11.3%respectively.10%to 30%limestone powder can make the pore size distribution of foamed light soil more uniform.

关 键 词：泡沫轻质土 石灰石粉 抗压强度 吸水率 干燥收缩性 孔径分布 

分 类 号：U414[交通运输工程—道路与铁道工程]