硅酸盐通报2024，Vol.43Issue(10)：3552-3560,3594,10.
硫铝酸盐水泥对硅酸盐水泥早期水化和力学性能的影响
Effect of Sulphoaluminate Cement on Early Hydration and Mechanical Properties of Portland Cement
摘要
Abstract
The prefabricated construction has rapidly transformed the building industry,and achieveing the swift demolding of component is fundamental for the rapid development of prefabricated industry.The effects of sulphoaluminate cement(CSA)at low replacement rate(from 2.5％to 7.5％of cement mass)on the early hydration and mechanical properties of Portland cement were studied.Setting time,compressive strength,hydration heat,XRD,TG,and SEM were used to expose to the behind mechanism,providing solutions for the rapid demolding of prefabricated component.The result show that the incorporation of CSA can shorten the setting time of Portland cement,enhance early hydration,and improve early mechanical properties.With the increase of the CSA mass fraction from 2.5％to 7.5％,the initial setting time reduces by 30％,43％and 49％respectively,and the final setting time by 24％,40％and 46％,respectively.5％mass fraction of CSA increases the 12 h compressive strength from 5.2 MPa to 12.8 MPa,an increase of 169％.Additionally,CSA also improves the later-stage mechanical properties of the system.关键词
硫铝酸盐水泥/硅酸盐水泥/早期水化/装配式建筑/力学性能/凝结时间Key words
sulphoaluminate cement/Portland cement/early hydration/prefabricated construction/mechanical property/setting time分类
建筑与水利引用本文复制引用
张琰,黄业胜,刘佳龙,曹昊煜,李伟,刘颖,肖群安,张小颖,谢丰蔚..硫铝酸盐水泥对硅酸盐水泥早期水化和力学性能的影响[J].硅酸盐通报,2024,43(10):3552-3560,3594,10.基金项目
国网公司总部科技项目(5108-202218280A-2-324-XG) （5108-202218280A-2-324-XG）
