The effects of alcohol amine early strength agents TEA and TIPA on the properties of super sulfate cement were systematically studied.The results show that when TEA and TIPA are doped alone,the best doping amount is 0.05％,and the enhancement effect of TEA is better;when TEA and TIPA are co-doped,the optimal dosage is 0.05％TEA+0.03％TIPA,and there is no synergistic effect between TEA and TIPA.The results of X-ray photoelectron spec-troscopy and SEM analysis show that the alcohol amine early strength agent can significantly promote the hydration of Si and Al in the slag and generate more hydration products,which is conducive to the densification of the hydration of super-sulfated cement.Compared with Portland cement,the addition of an appropriate amount of TEA-enhanced supersulfated cement will further optimize its internal pore distribution,hinder the leaching of gel and unreacted raw materials,and have a smaller mass loss rate and better stability at various ages in freshwater environments.
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