粉煤灰对新型超早强磷酸盐修补材料的改性研究  

Study on Modification of Fly Ash for New Ultra-Early Strength Phosphate Repair Material

作　　者：周跃孝 李硕 赵顺义[1] 唐春平[1] ZHOU Yuexiao;LI Shuo;ZHAO Shunyi;TANG Chunping

机构地区：[1]重庆开放大学重庆工商职业学院,重庆400052 [2]重庆市住房和城乡建设工程质量安全总站,重庆400014

出　　处：《重庆建筑》2024年第9期43-45,共3页Chongqing Architecture

基　　金：重庆市教委科研项目“新型超早强磷酸盐修补材料强度影响因素研究”(KJQN202104015)。

摘　　要：在磷酸盐修补材料中加入粉煤灰,可有效地改善其性能。试验研究了粉煤灰掺量对磷酸盐修补材料凝结时间、强度及收缩性能的影响。结果表明,掺入适量粉煤灰可以延缓凝结时间,但随着粉煤灰掺量的增加,强度有所降低,可减少磷酸盐修补材料的干缩。The incorporation of fly ash into phosphate repair materials can effectively improve their properties.This study experimentally investigates the influence of fly ash content on the setting time,strength,and shrinkage properties of phosphate repair materials.The results indicate that the addition of an appropriate amount of fly ash can delay the setting time.However,as the content of fly ash increases,the strength decreases to some extent,but it can reduce the drying shrinkage of the phosphate repair material.

关 键 词：磷酸盐 粉煤灰 凝结时间 抗压强度 抗折强度 干缩 

分 类 号：TU253[建筑科学—建筑设计及理论]