In order to study the effect of triethanolamine on the hydration characteristics of cement-limestone powder cementitious mate-rial system,the hydration process and the evolution of hydration products under the action of triethanolamine were investigated by means of isothermal calorimetry,X-ray diffraction and thermogravimetric tests.The boundary nucleation and growth model was used to investi-gate the hydration kinetics of the cementitious material system under the action of triethanolamine.The results show that triethanolamine can accelerate the hydration of cement-limestone powder system,increase the generation of hydration products,and increase the degree of hydration.In addition,triethanolamine can increase the nucleation and growth rate of early hydration products,and reduce the phase bound-ary nucleation and growth area of early hydration products.
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