A compacted asphalt concrete specimen contains 4.8% asphalt binder by weight of total mix and aggregate...

A compacted asphalt concrete specimen contains 4.8% asphalt binder by weight of total mix and aggregate blend with blended specific gravity of 2.689. The average bulk density of the compacted specimen is 2.414 g/cm3 . Ignoring absorption of aggregate particles, 1) compute the VTM, VMA, VFA, and D/B of the specimen. 2) Draw the phase diagram of this asphalt mixture.

- Asphalt binder specific gravity, Gb: 1.03

- Passing #200 fine fillers (%): 4.7 %

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Expert Solution

This is the problem of Marshall Mix Design of butumen through which, performance of Asphalt is evaluated.

MB VFA - void filled with Asphalt. VFA - YO VOL of Asphalt x 100 VMA = 52.376 (Ans). {V) D/B of the specimen, a saturated Dry wt. of sample Submerged wit. of aggregate - W As,#20 ffre filter = 4.700) Asphalt binder by wt= 4.81 Des 1.105. (Ans).

Ally Wells answered 6 months ago

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