高掺量低碱度钢渣-脱硫石膏胶凝材料的制备  

Preparation of FGD Gypsum Composite Material Mixed with High Volume Low-Alkalinity Steel Slag

作　　者：朱江[1] 李国忠[1] 王英姿[1] 

机构地区：[1]济南大学材料学院建筑材料制备与测试技术山东省重点实验室,山东济南250022

出　　处：《粉煤灰》2013年第6期25-26,39,共3页Coal Ash China

基　　金：山东省环保科研项目(THB1004)

摘　　要：以钢渣和脱硫石膏工业废渣为主要原料,掺加适量的激发剂,制备出脱硫石膏基低碱度钢渣胶凝材料,并探讨了其制品应用形式。试验结果表明,钢渣∶脱硫石膏(质量比)=1∶1时,胶凝材料的凝结时间为初凝6 min、终凝9 min,2 h抗折强度2.21 MPa、抗压强度5.06 MPa,1 d抗折强度2.03 MPa、抗压强度4.7 MPa,而7 d抗折强度和抗压强度分别达到3.59 MPa和12.55 MPa。Low-alkalinity steel slag was mixed with FGD gypsum to make the gypsum based cementing material containing low- alkalinity steel slag, by adding some appropriate activators. Further application of products produced with this composite cementing material was also discussed. Results showed that, when mass ratio of slag to gypsum was 1：1, setting time of the material was greatly shortened to 6min of initial setting time and 9min of the final. Flexural strengths of 2h, 1d and 7d were separately 2.21MPa, 2.03MPa and 3.59MPa, while the compressive strength of 2h, 1d and 7d were 5.06MPa, 4.70MPa and 12.55MPa.

关 键 词：低碱度钢渣 脱硫石膏 工业废渣 胶凝材料 

分 类 号：TU522.19[建筑科学—建筑技术科学]