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120-9 Acceptance Program. <br />120-9.1 Density over 105%: When a computed dry density results in a value <br />greater than 105% of the applicable Proctor maximum dry density, the Engineer will <br />perform a second density test within 5 feet. If the second density results in a value greater <br />than 105%, investigate the compaction methods, examine the applicable Maximum Density <br />and material description. If necessary, the Engineer will test an additional sample for <br />acceptance in accordance with AASHTO T 99, Method C. <br />120-9.2 Maximum Density Determination: The Engineer will determine the <br />maximum density and optimum moisture content by sampling and testing the material in <br />accordance with the specified test method listed in 120-9.3. <br />120-9.3 Density Testing Requirements: Compliance with the requirements of 120- <br />9.5 will be determined in accordance FM 1-T 238. The in-place moisture content will be <br />determined for each density in accordance with FM 5-507 (Determination of Moisture <br />Content by Means of a Calcium Carbide Gas Pressure Moisture Tester), or ASTM D 4643 <br />(Laboratory Determination of Moisture Content of Granular Soils By Use of a Microwave <br />Oven). <br />120-9.4 Soil Classification: The Engineer will perform soil classification tests <br />in accordance with AASHTO T-88, and classify soils in accordance with AASHTO M-145 <br />(Standard Specification for Classification of Soils and Soil -Aggregate Mixtures for Highway <br />Construction Purposes) in order to determine compliance with embankment utilization <br />requirements. <br />120-9.5 Acceptance Criteria: The Engineer will accept a minimum density in <br />accordance with 120-7.2 with the following exceptions: <br />1) embankment constructed by the hydraulic method as specified in 120-6.3; <br />6.2.4; <br />2) material placed outside the standard minimum slope as specified in 120- <br />3) other areas specifically excluded herein. <br />120-9.6 Frequency: The Engineer will conduct sampling and testing at a minimum <br />frequency listed in the table below. <br />Test Name <br />Frequency <br />Maximum Density <br />One per soil type <br />Density <br />1 per 500' RDWY Alt Lift <br />Soil Classification <br />One per Maximum Density <br />120-10 Maintenance and Protection of Work. <br />While construction is in progress, maintain adequate drainage for the roadbed at all <br />times. Maintain a shoulder at least 3 feet wide adjacent to all pavement or base <br />construction in order to provide support for the edges. <br />Maintain and protect all earthwork construction throughout the life of the Contract, <br />and take all reasonable precautions to prevent loss of material from the roadway due to the <br />action of wind or water. Repair any slides, washouts, settlement, subsidence, or other <br />mishap which may occur prior to final acceptance of the work. Maintain all channels <br />excavated as a part of the Contract work against natural shoaling or other encroachments <br />to the lines, grades, and cross-sections shown in the plans, until final acceptance of the <br />project. <br />01025-24 Technical Specifications <br />F:\Public Works\ENGINEERING DIVISION PROJECTS\1503-43rd Ave Swk_Airport Dr to 41st St\1-Admin\13ids\Bid <br />Documents\Master Contract Documents\Technical Specifications.doc <br />