Section 02200 Earthwork - Laserfiche WebLink

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02200 - 2/4 1.04 SUBMITTALS: The Contractor shall submit cross-sections for record purposes for canal excavations and levee embankments as described in this Section. 1.05 QUALIFICATIONS: (Not Used) 1.06 RESPONSIBILITIES: (Not Used) 1.07 CERTIFICATIONS AND TESTINGS: Field density tests in accordance with ASTM Standards, for each type of material used in backfilling may be required. Failure to meet the specified density will require the CONTRACTOR to recompact and retest, at his own expense, those areas directed by the ENGINEER 1.08 INSPECTION COORDINATION: The CONTRACTOR shall provide access to the WORK for the ENGINEER as requested for inspection. The Contractor shall provide 48 hours notice of its intention to begin new WORK activities. 1.09 WARRANTY: (Not Used) PART 2 - PRODUCTS 2.01 MATERIALS ENCOUNTERED: A. The CONTRACTOR shall consider all materials encountered in excavations, excluding peat unless the quantities are less than 25 percent of the total volume, as suitable for use in random fill, providing that they consist of two or more well graded soils to achieve the required compaction as specified in this SECTION. B. The CONTRACTOR shall use only material that is free of debris, roots, and organic matter in select fill areas. Peat materials are not suitable for use in select fill. 1. Cohesionless materials include gravels, gravel-sand mixtures, sands, and gravelly sands generally exclusive of clayey and silty material - materials which are free-draining and for which impact compaction will not produce a well- defined moisture-density relationship curve and for which the maximum density by impact methods will generally be less than by vibratory methods. 2. Cohesive materials include silts and clays generally exclusive of sands and gravel - materials for which impact compaction will produce a well-defined moisture-density relationship curve. C. The CONTRACTOR shall furnish materials for each type of fill indicated. 1. Select backfill: Select Backfill shall be material that is well graded, free of debris, roots, organic matter and peat. Select backfill shall be material excavated for the WORK (native) or may be imported. The CONTRACTOR may blend native materials to achieve a material that meets the requirements for Select Backfill. Select backfill shall be free from seeds of nuisance or exotic species. Select Backfill shall meet the following Unified Soil Classification System (ASTM D2487) designations: a. Select Backfill: CL, ML, SC, SW, SP, SM 2. Random Backfill: Random backfill shall be material that is well graded, free of debris, roots, organic matter and peat. Random backfill shall be material excavated for the WORK (native) or may be imported. The CONTRACTOR may blend native materials to achieve a material that meets the requirements for Random Backfill. Random backfill shall be free from seeds of nuisance or exotic species. Random Backfill shall meet the following Unified Soil