再生微粉对砂浆性能影响研究  

Study on effect of recycled micro powder on mortar performance

作　　者：邢晓飞[1,2,3,4] 苏彩丽 XING Xiao-fei;SU Cai-li

机构地区：[1]开封大学土木建筑工程学院,河南开封475004 [2]开封市建筑固体废弃物再生利用技术重点试验室,河南开封475004 [3]开封市海绵城市工程材料技术研究中心,河南开封475004 [4]开封市固体废渣资源化与无害化工程技术研究中心,河南开封475004

出　　处：《砖瓦》2024年第7期37-39,共3页Brick-tile

基　　金：开封市科技攻关计划项目(2301012);河南省教育厅高等学校重点科研项目(24B560016);开封市哲学社会科学规划调研课题(ZXSKGH-2023-0464);河南省社科联调研课题(SKL-2023-307)。

摘　　要：为响应国家“减碳”目标,针对开封地区建筑垃圾特点,研究再生微粉砂浆的干缩变形特点。研究结果表明:掺入再生微粉后可以有效改善砂浆的质量损失速度和干缩值,并随着再生微粉的掺量先增大后减小。再生微粉可以很好地改善再生砂浆的失水率,经过比较发现,20%再生微粉掺量为最佳。In order to correspond to the national“carbon reduction”goal,according to the characteristics of con⁃struction waste in Kaifeng,the dry shrinkage and deformation characteristics of recycled fine powder mortar are studied.The results show that the mass loss rate and dry shrinkage value of the mortar can be effectively improved after being mixed with recycled powder,and the content of recycled powder increases first and then decreases.Recycled powder can improve the water loss rate of recycled mortar,and it is found that the content of 20%recycled powder is the best.

关 键 词：再生微粉 砂浆 干缩变形 

分 类 号：TQ177.6[化学工程—硅酸盐工业]