Value of fractal dimension (D) which can be used to describe the pore structure of hardened cement pastes decreased with the prolongation of hydration but increased with the augment of coal stone.

• 分形维数值随著水化龄期的延长而减小，但随著煤矸石掺量的增大而增大。其可以用来表徵硬化水泥浆体的孔隙结构特徵。