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,.., - ..., .., 548-7 Acceptance Program. 548-7.1 General Requirements: Meet the requirements of 120-10.1 except delete the requirement of 120-10.1.4.1, 120-10.1.6 and 120-10.2. 548-7.2 Maximum Density Determination: Determine a minImum Quality Control (QC) density of 100% of the maximum density in accordance with FM 1 T-180. 548-7.3 Density Testing Requirements: Ensure compliance with the requirements of nuclear density testing in accordance with FM 1- T 238. Determine the in-place moisture content for each density test. Use FM 1-T 238, FM 5-507 (Determination of Moisture Content by Means of a Calcium Carbide Gas Pressure Moisture Tester), or FM 5-535 (Laboratory Determination of Moisture Content of Granular Soils By Use of a Microwave Oven) for moisture determination. Perform these tests at a minimum frequency of one set of tests per lOT. One set of tests is defined as a density test for the fill within 3 ft [1 m] behind the wall face and another density test for the fill beyond 3 feet [1 m] behind the wall face. Determine test locations including stations and offsets, using the random number generator provided by the Engineer. Do not use note pads or work sheets to record data for later transfer to the density log book. Notify the Engineer upon successful completion of QC testing on each LOT. 548-7.4 Acceptance Criteria: Obtain a minimum density of 90% of the maximum dry density as determined by FM 1 T -1 80within 3 ft [1 m] behind the wall face and obtain a minimum density of 95 % of the maximum dry density as determined by FM 1 T -180 from beyond 3 feet [1 m] behind the wall face. 548-7.5 Frequency: Conduct sampling and testing at a minimum frequency listed in the table below. The Engineer will perform Verification sampling and tests at a minimum frequency listed in the table below. . .., . " . . ,., . ., . f"1 . .., . ., . r, Test Name Quality Control Verification Maximum Density One per soil type One per soil type Density One set of tests per LOT per One set of tests per four LOTs for each Section. ~ype of QC test. "'1 . . r , 548-8 Certification. Furnish a copy of all test reports which are necessary to document compliance with the Specifications, at least ten days prior to wall construction. Also furnish the Engineer a Certificate of Compliance certifying that the retaining wall materials, backfill and construction practices comply with this Specification. Acceptance of furnished material will be based on the Certificate of Compliance, accompanying test reports, and visual inspection by the Engineer. . ,..., . ., . 548-9 Method of Measurement. The quantity to be paid for will be the plan quantity, in square feet [square meters], completed and accepted, of the area bounded by the top of the coping, the top of the leveling pad, top of structural footings, bottom of walls which do not have footings or leveling pads, and the beginning and end wall limits as shown on the wall control drawings. ,.., . ,.., . ...., . r-I 09/09 01000-127 03-4122.F .