787116004

2020 IBEF Exchange Seminar

MATERIALS SELECTION AND DESIGN

> Materials

> Emulsified Asphalt		Table 1 Blotter Aggregate
		Sićyć Size T 27	Passing, %
> AASHTO M 140 or M208		No. 8 No. 16	100 50-85
		No. 30	25-60
> ASTM D2397 or D997		No . 50	5-30
		No. 200	0-10
Blotter Aggregate
> Typical Values are in Table 1	Table 2—Inilial Target Fog Seal Application Ratę
	Surfacc Type	Rcsidual Ratc, gal/yd2	Undilutcd. gal/yd2 *	Dilutcd 1:1, gal/yd2
> Application rates of 1-3 lbs/yd^2	Dense-Graded Asphalt Mi\ture Open-Graded Asphalt Mixture	0.015 0.021 0.021-0.027	0.025 0.035 0.035-0.045	0.05 0.07 0.07-0.09

> Determine Macrotexture    chi_Pseai(<i/2uLtopagg.s,ze) 0.027-0.033    0.045-0.055    0.09-0.11

Chip Scal (> 1/2 in. top agg sizc)    0.029-0.039    0.055-0.065    0.11-0.13

By Mix type similar to Table 2    ^łThis•SMnei*i>cmulsificd Aspbjilt iciiduil bindercouicntof60pciccnt and a w*i« contcmof40pcrccnt

> By testing (sand patch, digital analysis)

Dec. 15th, 2020

International Bitumen Emulsion Federation