Effect of CaO on the Autogenous Shrinkage of Alkali-Activated Slag Mortar

Table 6

Total porosity, pore size distribution, and average pore diameter of C0 and C12 at 28 d and 56 d.

Group	Total porosity (%)	Average pore diameter (nm)	Pore size distribution (%)
			<20 nm	20–50 nm	50–200 nm	>200 nm
C0-28 d	29.11	22.89	9.41	8.26	9.41	2.03
C0-56 d	27.80	20.51	10.03	6.79	8.96	2.02
C12-28 d	27.23	16.11	8.18	14.34	2.70	2.01
C12-56 d	26.33	15.25	9.07	12.67	2.59	2.00