Comparative Study on the Macroscopic and Microscopic Properties of UHPC Mixed with Limestone Powder and Slag Powder

Table 4

Test results of pore structures of hardened slurry.

No.	Age (d)	Porosity (%)	Pore size distribution (%)/nm
			<5	5-20	20-50	50-100	100-200	>200
c1	7	14.3	17.6	50.1	25.4	4.3	1.4	1.2
	28	10.7	20.1	52.3	22.8	2.7	1.1	1.0
csl1	7	13.6	17.1	50.9	25.1	4.8	1.0	1.1
	28	10.2	20.8	51.6	22.7	3.1	0.9	0.9
csl3	7	13.2	18.0	51.2	26.2	3.2	0.8	0.9
	28	9.7	21.2	52.1	24.0	1.4	0.6	0.7
cl4	7	16.1	15.5	46.7	27.1	6.4	2.4	1.9
	28	13.3	18.3	48.8	25.2	4.1	2.0	1.6
css1	7	12.2	18.7	53.9	23.2	2.4	1.1	0.7
	28	10.0	20.6	54.4	21.5	2.0	0.9	0.6
css3	7	12.8	17.7	53.4	24.2	2.6	1.2	0.9
	28	9.4	22.0	55.1	20.6	1.0	0.8	0.5
cs4	7	13.4	17.4	53.1	24.8	2.2	1.4	1.1
	28	9.9	20.4	54.1	21.9	1.7	1.1	0.8