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U::'i�.' i7vt uE:: �7 :�J6=J'�Ja79 SH�!�A! �� FUTE�! Fa3E ll <br /> I � ` �N ie050 <br /> Tnomu Jona Pp�0 , <br /> iM�rch 7�, 1Gi� <br /> I conlent. 7ha optimum moisture content is th�t mo�+ture content that r�sult� in the 9►��ts�t <br /> compecled dry d�nalty. The mcisture conlent ot fill is very important and must be closaly I <br /> canVolled durinp fh� fillinp ane compactlon proces�. I <br /> I <br /> Th� allowable thickne�s of tha fill Iltt will depend on tha mateAai type selacted, th� compeCtion <br /> equipment u��d, and lha number ot passes made to compact the IiR. Th� looss Iifl thickne�s <br /> should not axceed 12 Inch�s. We recommend testinp the f�ll a: it Is placed if tha flll it no! <br /> compacted to spacificatlons, ft can be recompact�d Deforo another lift is pl�ced. Thia a8minelEs <br /> tha ne�d to remove the fill to achievs ths roquired compaction. Tha fo0owinp Lble pres�nt� <br /> I racommanded r�lative compections tor stnictural flll: <br /> Minimum Rel�tive <br /> ' ���•�•�n ol Fill Place ent Co oaction <br /> I B�neath tootinps, �labs, 95% <br /> ' or walkway� <br /> I <br /> I Behlnd rat�ininp w�ll� 909'0 <br /> Beneath pavam�nts 95°k for upp�r 12 <br /> i Inche�of subpr�ds, <br /> • 9096 b�low that Iwel <br /> I Wh�n: <br /> Minimum RelaUve C�mpaclion le tha ratio, <br /> expressed �n percentages, of the compedad dry <br /> denaity to lhe m�ximum dry donsity, e� det�rtninad <br /> in accord�nca with ASTM Test Deaipnation 0 <br /> 1557-78 (Modified Proctor). <br /> Us� of On-Sib Soll <br /> I It predinp activities feke placa during wet•Neather, or when tha silty, on-site soil is wet, site <br /> preparatlon costs may be hipher bacause of delays due to rain and the potentirl ne�d to <br /> import addit�onal granular fill. The on•site sail is qaneraliy silty and thus mofsture-sensiUve. <br /> Grodinp operations wil! be dlKcult dw�inp wet woathar, or whon tha molsturo content o}thls <br /> soll exceed� lhe aptimum moistun conteM, <br /> I Due to the construction and oryanlc debris found in the exi�tinp fHl and tha fill's fin� prein <br /> �ize, the fill is not suitaDle for use as stn�c�ural flll. Tha moisturs content of the silry, n�liv� <br /> soll must be at, or near, the optimum mois�ure content, ac lhe soil cannot be consietenUy <br /> compaded to tha requlred density whan tne moisture conlent ia sipniAcanUy pneter than <br /> optimum. Tne moisture eontent of the native soii was g�nerally ebave tha estlmated <br /> optlmum moisture content at tha time ot cur explorations. Some oi the on-eite, :Ilry, netive <br /> ssnd could be used as structural f(1, il qradinp operations Are conducted during hot, dry <br /> weather, whon Cryir�g the werier soil by aeration is possihle. Duriny excosslvety dry <br /> weethar, howevor, it may �o necessay ta add water to ach�evs the opUmum moicturo <br /> � cont�nt <br /> � <br /> � OEOTECIf�ONSL1TAPfIT,f�C <br /> I <br /> --- ._ .._--- — . _ -- .. _... _ . _ . . . <br />