摘要
在测试磷矿尾矿砂基本物化性能的基础上,研究了作为细骨料掺入对混凝土性能的影响。结果表明:磷矿尾矿砂的掺入对混凝土泌水率、凝结时间无影响,在适宜掺量下对混凝土流动性、强度以及干缩、抗碳化性能方面均有一定的改善作用,可以作为天然砂的补充用于预拌混凝土。
In this paper,,the effect of phosphate tailings utilized as fine aggregate on concrete was studied,based on the analysis of its physicochemical properties.The results show that phosphate tailings have no influence on the bleeding rate and setting time of concrete,,and it also plays a positive role in improving concrete flowability,carbonization resistance,strength and drying shrinkage,which can be used as a supplement to natural sand in concrete.
出处
《江苏建材》
2021年第1期14-17,共4页
Jiangsu Building Materials
关键词
磷矿尾矿砂
混凝土
新拌性能
强度
碳化
phosphate tailings
concrete
fresh performance
strength
carbonization
