To make fly ash fully play its role in cementitious material, the hydration process ofcement clinker, fly ash and slag were compared, taking the advantage of SEM.

• 为更好发挥粉煤灰在胶凝材料中的作用,利用扫描电镜对比跟踪观察熟料、粉煤灰及矿渣的水化过程。