1430 W CASINO RD BASE FILE 2016-01-01 MF Import

November 23. 1>d8 5 _�fl_3-1580 4 sieve frutlon. A v�por barrler conststtng of � reinforced heavy pl�stic sheeting, shculd be included bene�th the slab and atop the capiliary bre�k. Structur�ll�� framed floors m�y also be used if � v�por b�rrter is placed over my �ra�s of b�re sotl �nd �dequ�ta venting is lncluded in crawl sp�ces. 5.1 F �thworks S1te prep�r�tion in most �re�s will constst of stripping the 3 to 18 inches of topsotl, all �•egetatian, surflci�l m�terl�ls from the �reas bene�th footlnps, floor slabs �nd p�vements. Somt remedl�l e�rthwark will be required M1th the remov�l �nd repluement of the �pproxtmately 2-1/2 feet of compresstble loose f111 within the bullding are�s (G,H,J) traund TP-4. We expect all the site sotls c�n be exc�wted Ntth conventton�l e�rthmoving equipment. All loose fill in the �re�s bene�th footings shauid be exc�v�ted and replaced with structur�l f111 co�puced to �t le�st 95 percent of the ASTM: D-1557-78 D labor�tory m�ximum. All structur�l fill plued bene�th p�vements and floors should be computed to �t le�st 90 percent of th�� ASTM D 1557-78 D laboratory m�xlmum. T Any fill placed beneath butidiny found�tions, floors, or p�vements should be p1 ued 1n m�ximum 6 inch loose lifts. Me recommend a large steel whe�led vtbr�tory roller b� used to comput the ftll, lf density tests t�ken in the fill tndic�te comp�ction ts not be being uhteved the f111 should be surified� moisture conditloned md recomputed. The so11s onsite �re not likeiy to be suttabie for use in compacted structur�l fills because of the high insitu n�tur�l moisture content. However duriny � dry summer these so11 may be possible to dry and use in f111 �re�s. If suffictent sutt�ble fill materl�l 1s not �v�ilable onsite we recommend drier m�teri�l th�t is free of or9anics �rd trash be • lmported. Far wet we�ther ftlling we recommend � clean free dr�ining s�nd and gr�vel fi71 m�teri�l be imported, The wet weather import materi�i should cont�in less th�n 5% p�ssing the No. 200 sieve, b�sed on the minus 3/� inch fr�ction. This type of m�teri�l cm typic�lly be placed �nd comp�cted in wet we�ther conditlons. � If exav�tions �re �llowed to become wet, the subgr�des an be easily disturbed �nd stirred to mud. The site soils are very molsture sensitivt due to rel�tively high silt content. To �void excessive site disturb�nce the cantrutor should implement protective me�sures. These me�sures should lnclude, but not be limited to, the pluement of etther � � thin 1�yer of pe� gravel , crushed rock, or � le�n concrete mud mat over the prep�red and �pproved subgr�de. Me recommend using an �sphalt � tre�ted b�se (ATB) to protect all �re�s which will recetve construction , tnffic, Ootd�r Assoclat�s