WITH ALL ANSWERS
Aggregates n- n ncorrect nanswer-riprap, ngravel, npebbles, ncrushed nstones,
ncrushed(recycled) nportland ncement nconcrete n(PCC) nand nasphalt nconcrete
n(AC),sand, netc.
Coarse naggregates n- n ncorrect nanswer-aggregates nretained non nSieve nNo n4,are
nalso nused nfor nbase ncourse, nover nwhich nslabs, npavements n( nPCCor nAC), nand
nrunways nare nlaid; nbase ncourse nwould nbe nplaced nover nthelocal, ncompacted
nsubgrade n(soil).
Fine naggregates n(FA) n- n ncorrect nanswer-sand, nor naggregates nthat npass nSieve
nNo n4,are nindispensable nfor nthe nworkability nof nportland ncement nconcrete(PCC).
What nare nthe norigins nof naggregates? n- n ncorrect nanswer-Man-made, nNatural,
nManufactured
The nfundamental nrule nfor naggregate nselection nis ndictated nby n- n ncorrect nanswer-
a) nDesirable nproperties nexpected nof nthe nconcrete
b) nCost nand nAvailability nof naggregates n- nowing nto nthe nlargecontent nof
naggregates nin nconcretes
Properties nof nAggregates n- n ncorrect nanswer-a) nAggregates nshould nbe
nchemically ninert n(not nreactive nwith nthe ncement)
b) nPhysicals: n
Density nor nunit nweight n
Particle nsize ndistribution
Shape nof ncoarse naggregate n(CA)