3301 CEDAR ST 2018-01-02 MF Import

I Dlringer DuiIJInQ Materiels Testing&ConsuUfng,Inc. Ncvember 3,2005 �S�Z68 moisturc conditions. Nativc soils will not be appropriate for use as sWctural fill during wet weather conditions. 6. During fair weather, native fill should be placed in loose liRs not exceeding S" in thickness and compacted wilh a sheep's foot roller to 95% of maximum dry density according to the modified Proctor(ASTM D 155'�. 7. Native fill should be frce of orgeaic debris or other deleterious material and should not contain cobbles or bouldcrs that exceed 5"diameter. 8. To prevent surfnce runoff from ponding against building foundations, the ground surface udjacent to the building nnd extending for u distnnce of at least 10 feet should be gmded to slope away from the building at a 5% slope. 9. Fill slopes should be conswcted "fat" and then trimmed back to final grade or the slope should be properly compacted es outlined above. 10. Permnnent fill slopes should be graded no steeper than 2:I. 1 l. Permnnent fill slopes should be track-walked to help mtain topsoil and sced,covered with a layer of topsoil and protected from erosion by planting with grass or ground cover. 8.4 Floor SlabOn-Cnde 1. Defore placing concrete floors or pavcments,or before any floor supporting fill is placed, the orgnnic, loose or obviously compressive materials must be removed. 2. The subgrade should be proof-rolled to confirm that the subgradc contains no soft or dcflecting areas. Arcas of excessive yielding should be excavated and backfilled with structural fill. Any additional fill used to increase ihe elevation of the floor slab should meet the requirements for structural fill. 3. To provide a capillary moisture brcak,a fivc inch thick, properly compacted granular met should be provided below (loor slabs. The mut should consist of crushed rock ell passing thc 1 inch sieve and nll retained on the N4 sieve. 4. I3ecause groundwuter can be expected to be ut shallower depths during the winter months a vppor barrier such as 10 mil polyelhyl�ne film should be placed beneath all Ooor slabs to prevent transmission of moisture t}vough the slab wherc floor coverings may be nft'ected. Cerc should be tuken during construction not to puncture or damege the vapor barrier. 8.5 Be�ring C�p�city�nd Fouodation Deafgn l. �or fills installed as recommended above, nnd for undisturbed nntive soils, dead plus long term live loads of 2500 pounds per square foot (ps� may be used for foundetion design. 7'hese values may be incrcased by 1/3 for dead plus short tertn live loads, such es wind and seismic. 2. Resistnnce to latcral loads may be calculated by multiplying the buried portion of foundution elements by an cquivalent fluid pressure of 250 pounds per cubic foot (pcQ. Unless the adjacent ground surface is protected by s.labs or pevement, neglect the upper one Coot. Additional resistnnce to leteral loads n.�ay be calculated by multiplying the vertical dcad load on the base of the footing by a factor of 0.25. B-� ��