CE200 CH 5 & 8 EXAM WITH ALL ANSWERS

Ce200 Ch 5 & 8 Exam With All Answers b b b b b b b b




Aggregates n- n ncorrect nanswer-riprap, ngravel, npebbles, ncrushed nstones,
b b b b b b b b




ncrushed(recycled) nportland ncement nconcrete n(PCC) nand nasphalt nconcrete
b b b b b b b b




n(AC),sand, netc.
b b




Coarse naggregates n- n ncorrect nanswer-aggregates nretained non nSieve nNo n4,are
b b b b b b b b b b




nalso nused nfor nbase ncourse, nover nwhich nslabs, npavements n( nPCCor nAC), nand
b b b b b b b b b b b b b




nrunways nare nlaid; nbase ncourse nwould nbe nplaced nover nthelocal, ncompacted
b b b b b b b b b b b




nsubgrade n(soil).
b b




Fine naggregates n(FA) n- n ncorrect nanswer-sand, nor naggregates nthat npass nSieve
b b b b b b b b b b b




nNo n4,are nindispensable nfor nthe nworkability nof nportland ncement nconcrete(PCC).
b b b b b b b b b b




What nare nthe norigins nof naggregates? n- n ncorrect nanswer-Man-made, nNatural,
b b b b b b b b b b




nManufactured
b




The nfundamental nrule nfor naggregate nselection nis ndictated nby n- n ncorrect nanswer-
b b b b b b b b b b b b




a) nDesirable nproperties nexpected nof nthe nconcrete
b b b b b b




b) nCost nand nAvailability nof naggregates n- nowing nto nthe nlargecontent nof
b b b b b b b b b b b




naggregates nin nconcretes
b b b




Properties nof nAggregates n- n ncorrect nanswer-a) nAggregates nshould nbe nchemically
b b b b b b b b b b




ninert n(not nreactive nwith nthe ncement)
b b b b b b




b) nPhysicals: n
b b




Density nor nunit nweight n b b b b




Particle nsize ndistribution b b




Shape nof ncoarse naggregate n(CA)
b b b b




CA nRounded nShape n- n ncorrect nanswer-better nsuited nfor nportland ncement
b b b b b b b b b b




nconcrete(PCC)
b




CA nAngular nShape n- n ncorrect nanswer-better nsuited nfor nasphalt nconcrete n(AC)
b b b b b b b b b b b




CA nElongated nand/or nFlaky nShape n- n ncorrect nanswer-undesirable nfor nall
b b b b b b b b b b




nconcretes
b




Mechanically, naggregates nshould nmeet... n- n ncorrect nanswer-a) nDurability b b b b b b b b




nstandards
b




b) nPermeability nand nabsorption nstandard
b b b b




c) nVolume nstability nstandards
b b b




d) nPorosity nstandards
b b