A Simple Cement Hydration Model Considering The Influences Of Water-To-Cement Ratio And Mineral Composition

Modeling cement hydration has both academic and practical values. The hydration kinetics model provides the hydration rate of cement and quantifies the component in the microstructure of cement pasts during the hydration process. In addition, the model can also estimate the aging evolutions of the physical properties. However, the chemical and microstructural phenomena are complex and interdependent, so it is hard to describe the hydration process accurately [1]. Several models with various methods try to quantify the kinetics of hydration [2-4]. Many of theA simple hydration model is used here by taking the composition of the cement and the initial water: cement ratio (w/c) into account explicitly. Its conceptual basis is a combination of the Avrami equation and Bentz's model based on simple spatial considerations. In this model, the Avrami equation determines the initial reaction, and Bentz's model describes the following hydration stage. The model favors engineers for it relies on one experimental parameter and has a reliable approximation in the practice.