Marshbank Construction 5/9/2016 - Laserfiche WebLink

I 11 2 The mix design will be performed by a lab accredited by a national authority such as 3 Laboratory Accreditation Bureau, L-A-B for Construction Materials Testing, The Construction 4 Materials Engineering Council (CMEC's) ISO 17025 or AASHTO Accreditation Program 5 (AAP) and shall supply evidence of participation in the AASHTO Material Reference 6 Laboratory (AMRL) program. 7 8 At the discretion of the Engineer, agencies may accept mix designs verified beyond the one 9 year verification period with a certification from the Contractor that the materials and sources 10 are the same as those shown on the original mix design. 11 12 51040 8MATF 13 5-04.3(8)A1 General 14 (January 16, 2014 APWA GSP) 15 . 16 Delete this section and replace it with the following: 17 18 Acceptance of HMA shall be as defined under nonstatistical or commercial evaluation. 19 20 Nonstatistical evaluation will be used for all HMA not designated as Commercial HMA in 21 the contract documents. 22 23 The mix design will be the initial JMF for the class of HMA. The Contractor may request a 24 change in the JMF. Any adjustments to the JMF will require the approval of the Project 25 Engineer and must be made in accordance with Section 9-03.8(7). 26 27 Commercial evaluation may be used for Commercial HMA and for other classes of HMA in 28 the following applications: sidewalks, road approaches, ditches, slopes, paths, trails, 29 gores, prelevel, and pavement repair. Other nonstructural applications of HMA accepted 30 by commercial evaluation shall be as approved by the Project Engineer. Sampling and 31 testing of HMA accepted by commercial evaluation will be at the option of the Project 32 Engineer. Commercial HMA can be accepted by a contractor certificate of compliance 33 letter stating the material meets the HMA requirements defined in the contract. 34 _ 35 5043 8t'A 36 5-04.3(8)A4 Definition of Sampling Lot and Sublot 37 (January 16, 2014 APWA GSP) 38 39 Section 5-04.3(8)A4 is supplemented with the following: 40 41 For HMA in a structural application, sampling and testing for total project quantities less 42 than 400 tons is at the discretion of the engineer. For HMA used in a structural application 43 and with a total project quantity less than 800 tons but more than 400 tons, a minimum of 44 one acceptance test shall be performed: 45 i. If test results are found to be within specification requirements, additional 46 testing will be at the engineers discretion. 47 ii. If test results are found not to be within specification requirements, additional ' 48 testing as needed to determine a CPF shall be performed. 49 41'`STREET TO WMVD FREIGHT CORRIDOR IMPROVEMENTS FED AID#STPUL-9931(012);PW#3472 SP-84 February 10,2016