摘要：在K.B.Park提出的中心粒子水化模型的基础上,考虑内、外部水化产物的具体特征以及自由水与水化产物接触相界面积的减小导致水泥水化速率减小这2个因素,建立硅酸盐水泥的微观水化模型,并用于预测水化速率随水化程度的变化关系。结果表明,在水泥的整个水化过程中,修正的微观水化模型都能够更真实地反应水泥水化速率与水化程度变化的关系。

关键词：水化；动力学；水化速率

Abstract：Based on the center-particles hydration dynamic model proposed by K.B.Park,the micro-structural hydration model of Portland cement was built considering two factors which were characteristics of inner and outer hydration products as well as the decrease of the hydration rate due to the reduction of free water and the reduction of the interfacial area of contact between the free water and hydration products.The model was used to predict the variation relationship of the hydration rate with the change of hydration degree.The results show that in the whole cement hydration process the revised micro-structural model can simulate the relationship between the cement hydration rate and hydration degree well.

Keywords：hydration;kinetics;hydration rate