Provided in the table below is the MassDOT Qualified Construction Materials List (QCML) for 2023 Approved Cement Concrete Producer Mix Designs. The MassDOT Approved Mix Designs expire on April 1, 2024.
Approval of cement concrete mix designs shall be defined as Department prequalification and verification of the concrete mix design’s conformance to the materials requirements, design targets, and testing limits specified herein. The Contractor shall be responsible for selecting and placing approved concrete mix designs that meet the desired concrete properties for the Contractor, per the contract document special provisions, standard specifications, specified application, approved design plans, and construction standard details.
The "Mix Design No." is a unique identifier used to represent the Producer's Approved Mix Designs for a given RMS 043 Mix Design Sheet, which is located on both the Producer's Mix Design Sheet and Approval Letter. Contractors seeking to perform work for MassDOT Highway Division projects shall select MassDOT Approved Mix Designs from the table provided below. Contractors shall obtain the Cement Concrete Producer’s MassDOT Approved RMS 043 Cement Concrete Mix Design Sheet(s) and MassDOT Approval Letter(s) or Approval Memo(s) by contacting the Producer "Contact Person" provided in the "Cement Concrete Producers and Fabricators" list, and by referencing the "Mix Design No."
The Contractor shall furnish mixes to MassDOT projects that are produced from only the referenced materials and proportions listed on the MassDOT Approved RMS 043 Cement Concrete Mix Design Sheet(s) and as stated on the MassDOT Approval Letter(s) or Approval Memo(s).
Mix designs shall be submitted annually, prior to production for state work, and any subsequent change in materials or design will require re-submission.
Key
* - Contract Specific
f'c - Design Compressive Strength
NMAS - Nominal Max Aggregate Size
TCM - Total Cementitious Material
AC - Air Content