Specifications Vol. II - Laserfiche WebLink

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.., . .., . IUnsoaked Bearing Value Required Tolerance ILBR 43 0.0 ISpecified Bearing Value \LBR 40 ., . .-, . 160-7.2.2 Mixing Depth Requirements: Do not exceed individual depth tolerance of 2 inches [50 mm] or LOT-average depth tolerance of 1 inch [25 mm]. As an exception to the above mixing requirements, where the subgrade is of rock, the Engineer may waive the mixing operations (and the work of stabilizing), and the Department will not pay for stabilization for such sections of the roadway. 160-7.2.3 Density Requirements: 160-7.2.3.1 General: Within the entire limits of the width and depth of the areas to be stabilized, other than as provided in 160-7.2.3.2, obtain a minimum density at any location of 98% of the Modified Proctor maximum density as determined by FM 1-T 180, Method D. 160-7.2.3.2 Exceptions to Density Requirements: The Contractor need not obtain the minimum density specified in 160-7.2.3.1 if within the following limits: (a) The width and depth of areas which are to be subsequently incorporated into a base course under the same contract. (b) The upper 6 inches [150 mm] of areas to be grassed under the same contract. Compact these areas to a reasonably firm condition as directed by the Engineer. 160-7.2.4 Frequency: Conduct QC 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. ., . ,., . ..., . " . I ..., . r"1 Test Name Quality Control Verification Modified Proctor Maximum One per two consecutive One per eight consecutive Density LOTs LOTs Density One per LOT One per four LOTs Limerock Bearing Ratio One per two consecutive One per eight consecutive LOTs LOTs Stabilizing Mixing Depth Three per LOT One per LOT .., . . .., . .., . 160-7.3 Additional Requirements: 160-7.3.1 Quality Control T estin9: 160-7.3.1.1 Bearing Values: Ensure compliance with 160-7.2.1 by sampling and testing the Stabilized Subgrade for determining the Limerock Bearing Ratio (LBR) in accordance with FM 5-515 and 160-7.2.4. Determine test locations including Stations and Offsets, using the Random Number generator provided by the Department, based on the two LOTs under consideration. 160-7.3.1.2 Mixing Depth Requirements: Meet required plan mixing- depths by measuring from the proposed Final Grade Line. Ensure compliance with 160-7.2.2. Determine test locations including Stations and Offsets, using the Random Number generator provided by the Department. Record results on forms supplied by the Department. 160-7.3.1.3 Modified Proctor Maximum Density Requirement: Collect enough material to split and create three separate samples. Retain a Verification sample I' . n . ,., . ,.., . r'l . 09/09 01000-38 03-4122.F