By modern test methods like mercury intrusion pore measurement (MIP) and scanning electron microscope (SEM), the hydration and hardening mechanism of the slag cement was analyzed.

This article studied the fractal characteristic of pore structure based on the fractal theory. By means of MIP experiment to test the pore structure of the concrete in terms of microcosmic.

Furthermore, some test techniques i. e. SEM and MIP etc. were applied to research the hydration and setting process of specimens, hydration products and structure of setting pastes.