Estimating the Asphalt Binder Film Thickness Using Scanning Electron Microscope and Energy Dispersive X-Ray Spectroscopy

Table 9

Surface area calculation according to AI gradation.

Sieve size (mm)	25	19	9.5	4.75	2.36	0.3	0.075
Selected blend (% passing)	100	95	68	50	36	12	5
Surface area factors (m^2/kg)	0.41	0.41	0.41	0.41	0.82	6.14	32.77
Surface area (m^2/kg)	0.410	0.410	0.410	0.205	0.295	0.736	1.638
Total surface area (m^2/kg)	4.104