Characterization of Air Void in Porous Asphalt Mixture Using Image Techniques and Permeability Test

Table 2

Porosities and permeabilities of SGC specimens.

Blow no.	Porosity (%)				Permeability (mm/s)
	G1		G2		G1		G2
	Average	COV	Average	COV	Average	COV	Average	COV
30	22.8	0.18	21.1	0.48	16.57	0.27	14.99	0.16
40	20.4	0.31	19.4	0.21	15.86	0.14	13.32	0.28
50	18.8	0.09	17.9	0.14	14.15	0.37	12.28	0.22