TX-RG-Ⅱ型早强支座砂浆的试验研究  

Experimental study of a TX-RG-Ⅱ-type early strength bearing mortar

作　　者：马保国[1] 李正冈[1] 肖佳[2] 朱艳超[1] 李高明[1] 

机构地区：[1]武汉理工大学硅酸盐材料工程教育部重点实验室,湖北武汉430070 [2]中南大学土建学院,湖南长沙410075

出　　处：《新型建筑材料》2011年第7期13-15,共3页New Building Materials

基　　金：国家"973"项目资助(2001CB610704-3)

摘　　要：以硫铝酸盐水泥为基础,通过减水剂、缓凝剂及功能组分的优化,研制出具有优良工作性能的TX-RG-Ⅱ型早强支座砂浆,并通过XRD、SEM进行表征。研究表明,缓凝剂掺量为0.1%、功能组分掺量为0.02%、水料比为0.14时,砂浆的综合性能最优,此时砂浆初始流动度可达345 mm,30 min流动度可达280 mm,2 h抗压强度达26.5 MPa,24 h抗折强度达11.9 MPa。Taking sulphoaluminate cement as base material, through the optimization of water reducing agent,retarder and functional eomponents,TX-RG-II-type early strength bearing mortar with a good working performance was developed,the eharaeterization was made on the product by XRD and SEM. The results show that the comprehensive performance of the mortar is best when the retarder eontent is 0.1%,the functional components content is 0.02%,and the water/material ratio is 0.14. Under the optimal ratio, the fluidity of mortar is up to 345 ram, 30 rain fluidity is up to 280 ram, 2 h compressive strength reaches 26.5 MPa, and 24 h flexural strength reaches 11.9 MPa.

关 键 词：支座砂浆 早强 钙矾石 功能组分 

分 类 号：TQ177.62[化学工程—硅酸盐工业]