3105 PINE ST 2018-01-01 MF Import

- � Voth Brothers Construction, Inc. E-1201-1 � October 20, 1960 Page 7 such as a plastic membrane should be placed beneath the slab. �� Two inches of sand may be placed over the membrane for protec- tion during construction and to aid in curing of the concrete. ,_ Site Preparation The building and pavement areas should be stripped and cleared of all slabs, trees, existing utilities, surface vegeta- - tion, all organic matter and any other deleterious material. It is anticipated that a stripping depth of approximately 12 to 24 inches will be required. Stripped m^�.erials should be removed from the site or stockpiled for later use in landscaping, if des?-�d. The stripped materials should not be mixed with any materials to be used as structural fill. In cut areas, the resulting surface should be examined by a � representative of Earth Consultants, Inc. Any loose areas should be recompacted in-place or removed and replaced by struc- ' tural fill. , ., Following stripping and excavation, the resulting surfaces � in areas where structural fill is to be placed should be proof- rolled under the observation of a representative of Earth Consul- � � tants. Inc. to reveal loose areas which, if found, should be „ removed and replaced with structural fill to a depth that will ,_. provide a stable base beneath the structural fill. . Structural fill, if used, should be placed in horizontal ' ' lifts not exceeding 8 inches in uncompacted thickness. The fill ._ should be compacted to a minimum of 95 percent of the maximum dry density in accordance with ASTM Test Designation D-1557-70 � (Modified Proctor) . The on-site soils contain an excessive amount of fines that will make them difficult to compact or work " when wet. An approved granular imported fill may be required if grading operations are performed during wet weather. It should consist of a granular material with no more than 5 percent �- fines, passing the No. 200 sieve. ' The proofrolling, structural fill placement and compaction should be monitored and tested by a representative of Earth Con- V sultants, Inc. The fine grained site soils are moisture sensitive and dur- " ing wet weather become easily disturbed. After excavating to final grade during wet weather, it may be benificial to place a few inches of gravel to protect the surfaces. Earth Consultants, Inc.