材料科学与工程学报2025，Vol.43Issue(3)：365-371,388,8.DOI:10.14136/j.cnki.issn1673-2812.2025.03.004
三乙醇胺对超硫酸盐水泥强度及水化性能的影响
Effects of TEA on the Strength and Hydration Performance of Super-sulfate Cement
摘要
Abstract
To solve the problem of low early strength of super-sulfate cement(SSC),the influence of alkanolamine additive triethanolamine(TEA)on the mechanical and hydration properties of SSC was studied through strength experiments,XRD,TGA,SEM and other methods.The mechanism was also discussed.The results show that TEA has a significant effect on strength improvement of SSC at both 3 d and 28 d.Within 0.04％amount of TEA,the strength increases significantly with the increase of TEA content.But,if it exceeds 0.04％,it tends to be stabilized.At 0.04％of TEA,the strength at 3 d and 28 d increased by 52.3％and 43.1％,respectively.Compared to OPC,it was more effective in SSC in the presence of TEA.The improvement of SSC properties by TEA is owing to the chelation of Al3+by TEA,which promotes the decomposition of slag and accelerates the formation of ettringite.It indicates that the addition of alkanolamine is an effective way to improve the strength of SSC(especially early strength).关键词
超硫酸盐/三乙醇胺/强度/水化Key words
Super-sulfate cement/Triethanolamine/Strength/Hydration分类
化学化工引用本文复制引用
周润铎,武双磊,范树景,王潮,杭法付,陈胡星..三乙醇胺对超硫酸盐水泥强度及水化性能的影响[J].材料科学与工程学报,2025,43(3):365-371,388,8.基金项目
四川省科技计划项目(2023YFSY0019) （2023YFSY0019）
