Granite Construction Company 5/16/2025

2025 PAVEMENT MAINTENANCE OVERLAY SPECIAL PROVISIONS PW# 3830 SP-56 March 26, 2025 HMA mixture which is accepted by Nonstatistical Evaluation will be evaluated by the 1 Contracting Agency by dividing the HMA tonnage into lots. 2 3 5-04.3(9)C1 Mixture Nonstatistical Evaluation – Lots and Sublots 4 A lot is represented by randomly selected samples of the same mix design that will be 5 tested for acceptance. A lot is defined as the total quantity of material or work produced 6 for each Job Mix Formula placed. Only one lot per JMF is expected. A sublot shall be 7 equal to one day’s production or 800 tons, whichever is less except that the final sublot 8 will be a minimum of 400 tons and may be increased to 1200 tons. 9 10 All of the test results obtained from the acceptance samples from a given lot shall be 11 evaluated collectively. If the Contractor requests a change to the JMF that is approved, 12 the material produced after the change will be evaluated on the basis of the new JMF for 13 the remaining sublots in the current lot and for acceptance of subsequent lots. For a lot 14 in progress with a CPF less than 0.75, a new lot will begin at the Contractor’s request 15 after the Engineer is satisfied that material conforming to the Specifications can be 16 produced. 17 18 Sampling and testing for evaluation shall be performed on the frequency of one sample 19 per sublot. 20 21 5-04.3(9)C2 Mixture Nonstatistical Evaluation Sampling 22 Samples for acceptance testing shall be obtained by the Contractor when ordered by the 23 Engineer. The Contractor shall sample the HMA mixture in the presence of the Engineer 24 and in accordance with AASH-TO T 168. A minimum of three samples should be taken 25 for each class of HMA placed on a project. If used in a structural application, at least one 26 of the three samples shall be tested. 27 28 Sampling and testing HMA in a structural application where quantities are less than 400 29 tons is at the discretion of the Engineer. 30 31 For HMA used in a structural application and with a total project quantity less than 800 32 tons but more than 400 tons, a minimum of one acceptance test shall be performed. In 33 all cases, a minimum of 3 samples will be obtained at the point of acceptance, a 34 minimum of one of the three samples will be tested for conformance to the JMF: 35 36 · If the test results are found to be within specification requirements, additional 37 testing will be at the Engineer’s discretion. 38 39 · If test results are found not to be within specification requirements, additional 40 testing of the remaining samples to determine a CPF shall be performed. 41 42 5-04.3(9)C3 Mixture Nonstatistical Evaluation – Acceptance Testing 43 Testing of HMA for compliance of Va will at the option of the Contracting Agency. If 44 tested, compliance of Va will use WSDOT SOP 731. 45 46