硬石膏和脱硫石膏对低钙硫铝酸盐水泥熟料性能的影响  

Effect of Anhydrite and Desulfurized Gypsum on the Properties of Low Calcium Sulphoaluminate Cement Clinker

作　　者：郭本凯 夏瑞杰 王吉营 董明涛 冯春花[3] 朱建平[3] Guo Benkai;Xia Ruijie;Wang Jiying;Dong Mingtao;Feng Chunhua;Zhu Jianping(Xinxiang Changcheng Ore Powder Co.,Ltd.,Xinxiang 453600,China;不详)

机构地区：[1]新乡市长城矿粉有限公司,河南新乡453600 [2]武汉三源特种建材有限责任公司,湖北武汉430080 [3]河南理工大学材料科学与工程学院,河南焦作454000

出　　处：《水泥工程》2021年第4期4-7,15,共5页Cement Engineering

摘　　要：研究了不同掺量硬石膏和脱硫石膏对高贝利特硫铝酸盐水泥熟料抗压强度、水化放热和水化产物的影响。结果显示:无论硬石膏或者脱硫石膏,当掺量为15%时,熟料的抗压强度达到最大值;当硬石膏掺量小于5%时,对熟料具有一定的缓凝作用,随着掺量的增加,硬石膏的加入会促进熟料的水化;当加入脱硫石膏时,同样促进了熟料的水化反应进程,与硬石膏相比,脱硫石膏在低掺量时并未有缓凝作用,且力学性能相差较小,由此可见利用脱硫石膏调控高贝利特硫铝酸盐水泥熟料性能是可行的。The effects of different content of anhydrite and desulfurized gypsum on the compressive strength, heat release of hydration and hydration products of high belite sulfoaluminate cement clinker were studied. The results show that whether anhydrite or desulfurized gypsum, when the content is 15%, the compressive strength of the clinker reaches the maximum;when the content of anhydrite is less than 5%, it has a retarding effect on the clinker to a certain extent. As the content increases, the addition of anhydrite will promote the hydration of the clinker;when desulfurized gypsum is added, it will also promote the hydration reaction process of the clinker. Compared with anhydrite, desulfurized gypsum at low content has no retarding effect on clinker, and the difference in mechanical properties is small. This shows that it is feasible to use desulfurized gypsum to control the properties of high belite sulfoaluminate cement clinker.

关 键 词：硬石膏 脱硫石膏 贝利特 硫铝酸盐水泥 水化 

分 类 号：TQ172.6[化学工程—水泥工业]