5121 CHINOOK DR 2016-01-01 MF Import

Thomas Jonea JN OEOSO Match 14, 199E pp�p content The opdmum motsture content ia that moi�turo content that rosults fn th� proat�st compacted dry densfty. The moisture content ot fiil is very important and must be doaaty confroiled dutlnp the flllinp and compactlon proceaa. The allowabla thickness of the BII tiR will dapend on the matedal type sekd�d, the compadbn ' equipment uaed, and the number of paases made to compact ths lih. The loo� lift fhickn�u should not exceed 12 inches. W�� recommend tesUnp the flil aa it is plaeed. If ths 811 f� not compacted to apeciflcaUona, it can be rocompacted before another IIR is placed. Thia sliminates the need to romove the fill to achieve the required compacUon. The followiny table prosenta recommended relaUve compacUons for sUuctural till: Minimum Relative Locat(on of Fill Placement ' Comeactlon Beneath fooUngs, slabs, 9596 or walkways Behind retaining walls 9096 Beneath pavements 95%for upper 12 inchea of subgrede, 90%bel�w that lavel Where: Minimum RelaUve CompacUon is the ratlo, expressed in percentages, oi the compacted dry density to the maximum dry denaity, as datertnfned In accordance with ASTM Test DesipnaUon D 1557-78(Modffied Proctor). Use of On-Slte Sofl If grad(ng activities take place during wet weather, or when the ailty, on-site soil la wat, aite preparaUon costs may be hfpher because of delays due to ra(n and fhe potentlal need to import additlonai granular fili. The on-site soil is peneraliy afity and thua moisturo-aenaidve. Gradinp opera0ons wfll be diHicuit durinp wet weather, or when the moisturo contsnt of thia soil exceeds the opdmum moistura content. Due to the consUuction and organic debds found fn the exisUnq 811 and the flll's fine prain size, the fill is not suitable tor use as structural flll. The molature content of ths eitty, netiva soil must be at, or near, the optimum moisture content, as the aoil cannot be consistently compacted to the required density when the molature content la siyniffantly �roater than apUmum. The mofsture content of the native soil waa penerally above the esUmated optlmum mofsture content at the tfine of our euploredons. Some of tha on-aite, ulty, native sand could be used as structurai fill, if gradinp operations are conducted durinp hot, dry weather, when drying the wetter aoil by aeratlon Is poasible. Durinp exceasively dry weather, however, it may be necessary to add water to achieva ths op8mum mofaturo content aeotEcx rnNstnTMrrs,wa