Thomco Construction Inc. 6/14/2021

I CITY OF EVERETT SPECIAL PROVISIONS 5-04.3(9)A Vacant 5-04.3(9)B Vacant 5-04.3(9)C Mixture Acceptance- Nonstatistical Evaluation The City will evaluate the HMA mixture accepted by Nonstatistical Evaluation by dividing the HMA tonnage into lots. 5-04.3(9)C1 Mixture Nonstatistical Evaluation - Lots and Sublots A lot is represented by randomly selected samples of the same mix design being tested for acceptance. A lot is defined as the total quantity of material or work produced for each Job Mix Formula placed. Only one lot per JMF is expected. A sublot will be equal to one day's production or 800 tons, whichever is less; except, the final sublot will be a minimum of 400 tons and may be increased to 1200 tons. Collectively evaluate all test results obtained from the acceptance samples from a given lot. If the Contractor requests a change to the JMF that is approved, the material produced after the change will be evaluated on the basis of the new JMF for the remaining sublots in the current lot and for acceptance of subsequent lots. For a lot in progress with a CPF less than 0.75, a new lot will begin at the Contractor's request after the Engineer is satisfied that material conforming to the Specifications can be produced. Perform sampling and testing for evaluation on the frequency of one sample per sublot. 5-04.3(9)C2 Mixture Nonstatistical Evaluation Sampling Obtain samples for acceptance testing when ordered by the Engineer. Sample the HMA mixture in the presence of the Engineer and in accordance with AASH-TO T 168. Take a minimum of three samples for each class of HMA placed on a project. If used in a structural application, test at least one of the three samples taken. Sampling and testing HMA in a Structural application where quantities are less than 400 tons is at the Engineer's discretion. For HMA used in a structural application and with a total project quantity less than 800 tons but more than 400 tons, preform a minimum of one acceptance test. In all cases, obtain a minimum of three samples at the point of acceptance. Test a minimum of one of the three samples for conformance to the JMF: a. If the test results are found to be within specification requirements, additional testing will be at the Engineer's discretion. 5-04.3(9)C3 Mixture Nonstatistical Evaluation -Acceptance Testing Testing of HMA for compliance of Va will be the City's option. If tested, compliance of Va will use WSDOT SOP 731. Testing for compliance of asphalt binder content will be by WSDOT FOP for AASHTO T 308. Testing for compliance of gradation will be by FOP for WAQTC T 27/T 11. 5-04.3(10) HMA Compaction Acceptance Compact HMA mixture accepted by nonstatistical evaluation being used in traffic lanes; including lanes for intersections, ramps, truck climbing, weaving, Water Main Replacement"V" Division 5-SURFACE TREATMENTS April,2021 WO No.-UP3730 AND PAVEMENTS SP-155 I