Abstract:
Clayey isoils ioften iexhibit iundesirable iengineering ibehaviour isuch ias ilow istrength,
swelling iand ishrinkage icharacteristics ietc. iTo iimprove ithese iproperties, ithe icommon imethod ifollowed iis istabilization. iAn iexperimental iprogram icarried iout iin ithis istudy iaims ito ihighlight ithe iphysical imechanisms iof istabilization iof ian iexpansive isoil iby iadding ian iinert imaterial i(sand). iThe istudy iaimed ito ianalyze ithe ieffect iof istabilization ion ithe ivariation of isoil iconsistency iand ithe iresults ihave ishown ithat isoil iconsistency improved iappreciably. iThe ifindings iof ithe ilaboratory itestingiprocedures ialso ipresented isubstantial iimprovement iin istrength iwith ithe iaddition iof isand ipercentages iup ito i60% iby iweight iof isoil, ias iwell ia inoticeable ialteration iin ithe imoisture-density irelation. iThe isoil itested icould ibe iused ias isubgrade imaterial iinipavement istructures
for ilow ivolume ibearing iroads, iafter iits istabilization iwith ifine isand. iA ifurther istep iin ithe iinvestigation iprocess icould ibe ithe ianalysis iof ithe iswelling ipotential iof iclayey isoils
iniconjunction iwith ithe iaddition iof iother iwaste imaterialsialong iwith isand, ias iwell ias ithe icost-benefitirelationships iof istabilization iwith isand iinilarge iprojects ilike ithe
highway iconstruction
