Porous Multiphase Microcharacteristics Research of New Cement-Based Grouting Material Concretion

Table 3

Porosity and density of NCG concretion. The data of “the rate of change” is the rate of change relative to W1 N (7 d).

Samples (age)	Porosity /(%)		Bulk density /(g/cm^3)		Skeletal density /(g/cm^3)
	Value	Rate of change	Value	Rate of change	Value	Rate of change
W1 N (7 d)	65.91	——	0.7319	——	2.1472	——
W2 N (7 d)	74.77	13.44%	0.5500	−24.85%	2.1801	1.53%
W1 N (28 d)	67.71	2.73%	0.6867	−6.18%	2.1271	−0.94%