石膏对矿渣路面基层水泥性能的影响  

Effect of Gypsum on the Cement for Road Base and Surface with Slag as Main Component

作　　者：汪春荣[1] 李春 乔宝[1] 周明凯[1] 

机构地区：[1]武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070 [2]山西省潞城市卓越水泥有限公司,长治047500

出　　处：《武汉理工大学学报》2013年第2期57-60,共4页Journal of Wuhan University of Technology

基　　金：交通运输部科研项目(2011318223420)

摘　　要：研究石膏-熟料-矿粉三方面体系中,石膏对矿渣路面基层水泥的影响,从水泥的凝结时间、力学性能以及微膨胀性等方面进行对比。结果表明:随着硬石膏掺量增加,水泥的凝结时间呈现先延长后缩短的趋势,水泥强度也呈先增加后急剧降低的趋势,并且在水泥中硬石膏掺量为9%的情况下,水泥强度达到32.5水泥等级,此时水泥的凝结时间及微膨胀性能也能满足施工要求。对比其他种类石膏的使用性能发现,脱硫石膏也具有广阔的使用前景。The research is about the effect of gypsum on the clinker and slag. Cement setting time, mechanical properties and cement for road and surface in the system of gypsum, micro expansive performance are taken as the main in- dex. As a result , the cement setting time extended firstly and then shortened with the increasing of the anhydrite dosage, similarly , the cement mechanical properties increased firstly and then declined severely. Compressive strength of the ce- ment with the 9G dosage of anhydrite could reach the standard of 32.5 grade, and the micro expansion performance and setting time can also satisfy the requirements of construction. And desulfurization gypsum also can be used wildly when compared with the performance of other species.

关 键 词：石膏 凝结时间 力学性能 微膨胀性能 

分 类 号：TU528.04[建筑科学—建筑技术科学]