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Question 47 options: An asphalt concrete mixture compacted at an
asphalt content of 5.1% (by weight of mix) has a density of 2,385
kg/m3. The aggregate densities are supplied as follows: Bulk
density: 2,585 kg/m3. Effective density: 2,765 kg/m3. Assuming the
specific gravity of the asphalt cement at 1.03, calculate the
following per cubic metre of mix: a) The total mass of binder (in
grams to three decimal places). b) The mass of aggregate (in grams
to three decimal places). c) The bulk volume (Vsb) of the
aggregates (in decimals to three decimal places). d) The effective
volume (Vse) of the aggregates (in decimals to three decimal
places). e) The volume (Vba) of the abosrbed asphalt (in decimals
to three decimal places). f) The mass (mba) of the abosrbed asphalt
(in grams to two decimal places). g) The percent air voids in the
mix (in percentage to 1 decimal place). h) The percent VMA in the
mix (in percentage to 1 decimal place ).