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E. Replacement of Topsoil: <br /> 1. After backfilling, grade and finish areas to receive topsoil, allowing for the <br /> specified depth of top soil replacement. <br /> 2. Replace the topsoil and smoothly spread the material with a minimum of <br /> compaction. <br /> 3. Finish areas covered with topsoil to blend into the finished topography <br /> with respect to the proper grade, contour and cross section. Rough grade <br /> replaced top soil to 2 to 4 inches higher than final elevations to allow for <br /> settlement. <br /> 4. Bring the surface to a condition ready for planting operations. <br /> SECTION 02210 — CONTROLLED LOW STRENGTH MATERIAL <br /> PART 1 - GENERAL <br /> 1.01 THE REQUIREMENT <br /> The Contractor shall provide Controlled Low Strength Material (CLSM), complete and in place, <br /> in accordance with the Contract Documents. <br /> 1.02 SUBMITTALS <br /> A. CLSM mix designs which show the proportions and gradations of all materials <br /> proposed for each type of CLSM indicated. Each mix design shall be <br /> accompanied by independent laboratory test results of the indicated properties. <br /> B. All testing will be done by a testing laboratory selected by the City, except as <br /> otherwise indicated. <br /> 1.03 QUALITY ASSURANCE <br /> A. The Contractor shall perform a field correlation test for each mix of CLSM used in <br /> pipe zone, trench zone, or backfill used in amounts greater than 100 cubic yards <br /> or when CLSM is required to support traffic or other live loads on the fill less than <br /> 7 days after placing CLSM. <br /> B. Field correlation tests shall be performed in a test pit similar in cross section to <br /> the work and at least 10-feet long at a location near the work. The proposed <br /> location shall be acceptable to the Engineer. <br /> C. Laboratory and field tests shall be performed on samples taken from the same <br /> CLSM batch mix. All tests shall be performed by a laboratory at the Contractor's <br /> expense. <br /> D. Testing shall be performed once each 2-hours during the first 8 hours, once each <br /> 8-hours during the first week, and once each 24-hours until the CLSM mix <br /> reaches the maximum design strength. <br /> July 2007 Division III-62 NEI Phase II Water and Sewer <br /> CIP Nos. 7468, 7589, 7590 <br />