Study on Air Void Characteristics and Hydraulic Characteristics of Porous Asphalt Concrete Based on Image Processing Technology

Table 2

Number and volume distribution of pore structures.

Volume range (mm^3)		I		II		III		IV
		Num.	Vol.	Num.	Vol.	Num.	Vol.	Num.	Vol.
0~1	IP	0	0.00	0	0.00	0	0.00	0	0.00
	SP	31	9.94	29	9.51	38	7.96	38	8.56
	CP	945	158.94	1101	193.64	1378	120.29	378	38.53
1~10	IP	0	0.00	0	0.00	0	0.00	0	0.00
	SP	19	76.93	21	64.22	5	19.03	6	11.13
	CP	212	675.86	263	838.51	111	358.68	42	136.78
10~100	IP	0	0.00	0	0.00	0	0.00	0	0.00
	SP	6	179.23	8	377.49	3	70.19	2	21.75
	CP	68	2060.12	68	2182.76	28	574.10	5	69.49
100~500	IP	0	0.00	0	0.00	0	0.00	0	0.00
	SP	5	927.52	2	374.09	0	0.00	0	0.00
	CP	7	1141.29	5	782.71	3	401.34	0	0.00
>500	IP	1	41566.90	1	47654.50	1	72185.50	1	87136.70
	SP	1	530.80	0	0.00	0	0.00	0	0.00
	CP	0	0.00	0	0.00	0	0.00	0	0.00
Total		1295	47327.53	1498	52477.43	1567	73737.09	472	87422.94