Specifications Vol. II - Laserfiche WebLink

Home Browse Search

.., . ,.., . ARTICLE 125-9 (Pages 172 and 173) is deleted and the following substituted: ., . .., I 125-9 Acceptance Program. 125-9.1 General Requirements: Meet the requirements of 120-10.1, except replace the requirements of 120-10.2 with 125-9.2 125-9.2 Acceptance Criteria: 125-9.2.1 Density: Obtain a minimum Quality Control (QC) density in any LOT of 100% of the Standard Proctor maximum density as determined by AASHTO T 99, Method C, or the requirements of 125-8.3.3.1 when applicable. For metal and plastic pipe, compact the backfill in the cover zone to a density of at least 95 % of the Standard Proctor maximum density as determined by AASHTO T 99, Method C. 125-9.2.2 Exceptions to Pipe Density Requirements: Compact the backfill to a firmness approximately equal to that of the soil next to the pipe trench in locations outside the plane described by a two (horizontal) to one (vertical) slope downward from the roadway shoulder line or the back of curb as applicable. Apply 120-9.2.1 when compacting side-drain pipe backfill under driveways serving a property that is not a single residential lot. 125-9.3 Additional Requirements: 125-9.3.1 Frequency: Conduct QC Standard Proctor maximum density sampling and testing at a minimum frequency of one test per soil type. The Verification test will be at a minimum of one test per soil type: " . Il I .., . .., . .., . .., . Irest Name Quality Control Verification Standard Proctor One per soil type One per soil type Maximum Density One per four LOTs and for Density One per LOT wet conditions, the first lift not affected by water Soil Classification One per Standard Proctor One per Standard Proctor Maximum density Maximum density r, . ..., . .., iii ARTICLE 125-10 (Page 173) is deleted and the following substituted: .., 125-10 Verification Comparison Criteria and Resolution Procedures: 125-10.1 Standard Proctor Maximum Density Determination: The Engineer will verify the Quality Control results if the results compare within 04.5 PCF [72 kg/m3] of the Verification test result. Otherwise, the Engineer will take one additional sample of material from the soil type in question. The State Materials Office or an AASHTO accredited laboratory designated by the State Materials Office will perform Resolution testing. The material will be sampled and tested in accordance with AASHTO T 99, Method C. The Engineer will compare the Resolution test result with the Quality Control test results. If the Resolution test result is withinO 4.5 PCF [72 kg/m3] of the corresponding Quality Control test results, the Engineer will use the Quality Control test results for material acceptance purposes for each LOT with that soil type. If the Resolution Test result is not withinO 4.5 PCF [72 kg/m3] of the Contractor's Quality Control test, the Verification Test result will be used for material acceptance purposes. .., . . n . ,., . r1 . ., 09/09 01000-36 03-4122.F .