Optimum Design and Performance of Porous Concrete for Heavy-Load Traffic Pavement in Cold and Heavy Rainfall Region of NE China

Table 7

Test results of specimen with 150 mm × 150 mm × 400 mm.

Goal porosity (%)	Flexural tension experiment				Antifreeze experiment
	Curing period (d)	Connected porosity (%)	Curing period (d)	Connected porosity (%)	Connected porosity (%)
15	7	17.3	28	16.4	14.8
		15.8		17.0	15.8
		14.4		14.9	18.3
20	7	23.3	28	21.9	21.2
		21.5		21.7	22.8
		19.1		23.5	23.1
25	7	26.1	28	26.4	27.3
		26.4		27.8	25.3
		25.6		24.9	24.9
30	7	30.6	28	31.9	31.3
		29.0		31.3	29.5
		32.0		32.0	32.0