2014 MnDOT Contractor Mix Design Pilot Projects

 

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Transition to Contractor Mix Designs for all Ready-Mixed Concrete

The Concrete Engineering Unit and the Concrete Ready-Mix Industry have developed specification language that transfers the responsibility of designing concrete mixes to the Contractor. The Engineer determines final acceptance of the concrete for payment based on satisfactory field placement and performance.

 

Frequently Asked Questions

 

When will it happen?

Starting in 2014, MnDOT will let pilot projects that require the Contractor to design all concrete mixes on the project. This is the next step towards requiring Contractor designed mixes for all concrete placed on MnDOT projects. The MnDOT Concrete Engineering Unit has a goal of 100% implementation by January 1, 2016 if not before.

 

Pilot Project Special Provisions

Special Provision (2461) Contractor Mix Design Pilot Project replaces 2461 from the 2014 spec book in its entirety. The Contract may have specific mix design requirements for bridge or other concrete. 2461 Pilot Project Provisions

 

Pilot Project Tools

- Pilot Project Checklist

- Contractor Mix Design Submittal Paperwork

- Curing and Handling Cylinders

 

 

Contact the MnDOT Concrete Engineering Unit with questions.

 

The following is a list of projects identified for the Contractor Mix Design Pilot Projects: