高贝利特硫铝酸盐水泥的早期水化  

Early Hydration of High Belite Sulphoaluminate Cement

作　　者：张育才[1] 周珉丞 徐兴卫 谢英美 刘雪娥 李卫[1] ZHANG Yucai;ZHOU Mincheng;XU Xingwei;XIE Yingmei;LIU Xue’e;LI Wei(Faculty of Architectural Engineering,Kunming Metallurgy College,Kunming 650033,China;Faculty of Architectural Engineering,Yunnan Polytechnic College,Kunming 650300,China)

机构地区：[1]昆明冶金高等专科学校建筑工程学院,云南昆明650033 [2]云南理工职业学院建筑工程学院,云南昆明650300

出　　处：《昆明冶金高等专科学校学报》2024年第6期45-48,77,共5页Journal of Kunming Metallurgy College

基　　金：云南省教育厅科学研究基金项目“磷石膏、粉煤灰制备高贝利特硫铝酸盐水泥”(2021J0948);昆明冶金高等专科学校科研基金项目“磷石膏对硫铝酸盐水泥性能的影响研究”(2021XJZK07)。

摘　　要：石膏对高贝利特硫铝酸盐水泥的凝结硬化有较大影响。通过测定水化放热速率、XRD和TG-DTG分析,研究了高贝利特硫铝酸盐水泥的早期水化。结果表明,石膏加入能极大加速高贝利特硫铝酸盐水泥早期水化,随石膏掺量增加,AFt生成量增加;早期水化放热曲线可能出现多个放热峰,是由于不同阶段AFt的生成所致;当石膏掺量较少时,AFt会向AFm转化,而这种转化是在早期水化集中放热结束后出现的。Gypsum has a significant impact on the setting and hardening of high belite sulphoaluminate cement.The early hydration of high belite sulphoaluminate cement was studied by measuring the hydration exothermic rate,XRD and TG-DTG.The results show that gypsum can greatly accelerate the early hydration of high belite sulphoaluminate cement,the AFt production increases with the increase of gypsum content;There may be multiple exothermic peaks in early hydration,which are caused by AFt formation at different stages;When the amount of gypsum is insufficient,AFt will transform into AFm,and this transformation does not occur until the end of the early hydration heat release.

关 键 词：高贝利特硫铝酸盐水泥 早期水化 水化热 水化产物 钙矾石 

分 类 号：TQ1721[化学工程—水泥工业]