Question #$1$

$($A$)[10$ marks$]$ What are

different types of asphalt

concrete recycling? Describe

any two.

$($B$)[10$ marks$]$ Draw a phase

diagram of an asphalt

concrete mix $($HMA$)$ Marshall

test specimen and show its

different components $($mass

& volume$).$

$($C$)[10$ marks$]$ Explain with

the help of a graph how you

can find out mixing and

compaction temperatures of

HMA.

$($D$)[10$ marks$]$ Compute VTM$,$

VMA & VFA of a compacted

AC specimen containing $5\%$

asphalt cement by weight of

the total mix, where

specimen's weight in air $=$

$1260$ gm$,$ wt$.$ in water $=755$

gm$,$ SSD wt$.=1290$ gm$,$ Gmm

$=2\mathrm{.}60,Gsb=2\mathrm{.}65.$