粉煤灰综合利用 2010No.5 FLY ASH COMPREHENSIVE UTILIZATION 题研究 磷渣粉对机制砂混凝土性能影响研究 Study the Influence of Phosphorous Slag Powder on Properties of Concrete with Machine-made Sand 蒋正武,徐海源,王君菊2 (1.同济大学先进土木工程材料教育部重点实验室,上海2000922.北京城建建材工业有限公司,北京100049) 摘要研究了不同掺量下磷渣粉对C30、C60强度等级机制砂混凝土的工作性与力学性能影响并与同掺量的粉煤 灰机制砂混凝土进行了比较。研究表明,磷渣粉具有一定的减水作用,能有效改善机制砂混凝土的工作性能,对高强度 等级机制砂混凝土更为明显。掺入磷渣粉后,不同强度等级机制砂混凝土早期抗压强度均较基准混凝土低,且随着掺量 增大强度下降明显各掺量下C30磷渣粉机制砂混凝土后期强度均较基准混凝土高,而C60混凝土后期强度与掺量有 关。与同掺量粉煤灰混凝土相比,磷渣粉机制砂混凝土初始落度及各龄期抗压强度均较高。 关键词:磷渣粉;机制砂;工作性;抗压强度;早期 中分类号:TU528.041 文献标识码:A 文章编号:1005-8249(2010)05-0010-04 JIANG Zheng - wu',Xu -yuan' ,Wang Jun - ju 1 .Key Laboratory of Advanced Civil Engineering Materials of Ministry Education ,Tongji University ,Shanghai 200092 ,China 2 .Beijing Urban Construction Material Industry Co ,Ltd ,Beijing 100049 ,China Abstract :The paper investigated the influence of phosphorous slag powder on workability and mechanical properties C30 and C60 concrete with machine - madesand ,and pared it with fly ash .The results ahow that phosphorous slag powder has water reducing and improve the workability of concrete with machine-made sand ,especially for high strength concrete .The early stage pres...
磷渣粉对机制砂混凝土性能影响研究.pdf
