April 16, 2013

Watch the webinar recording

Take a short quiz for Roads Scholar credit (DOCX)

About the Event

This webinar reviewed the Minnesota Concrete Flatwork Specifications guide developed by the Minnesota LRRB and Minnesota LTAP. The document provides specs for local agencies and the concrete industry to follow as they move through the life of a local concrete project. It is intended to be used separately from the MnDOT specifications, except for the use of the existing approval process developed and maintained at MnDOT for any products and certifications.

This document allows contractors more control over mix design and construction inspection quality control—items such as joint layout will become the responsibility of the contractor. Acceptance of the concrete will be based on concrete strength from concrete cylinders built on the job site.  This specification will allow, at the engineer’s choice, the option to use bridge quality aggregates, concrete smoothness, and maturity testing for concrete strength.

Who Should Attend

Engineers and technicians involved in the design or construction of any concrete flatwork, including sidewalks, curb and gutter, driveways, and concrete pavements for local agencies in Minnesota.


Daniel P. Frentress, P.E., Frentress Enterprises, LLC, owns a consulting business specializing in concrete training and research of concrete pavements. He manages the ACI–MnDOT certification program for the Aggregate and Ready Mix Association of Minnesota and provides promotional help to the ready-mix industry. During his 28-year career, Frentress has served as vice president of highways for the American Concrete Paving Association and as executive director of the Concrete Paving Association of Minnesota. He holds a professional engineer’s license in Iowa and Minnesota.


0.25 Roads Scholar Program Maintenance Certificate credit. To receive your Roads Scholar credit, please watch the webinar, take the short quiz, and e-mail it to Katherine Stanley at


This webinar is presented by the Minnesota LRRB and the Minnesota Local Technical Assistance Program (LTAP) at the Center for Transportation StudiesUniversity of Minnesota. Minnesota LTAP is sponsored by the Minnesota LRRB and the Federal Highway Administration (FHWA).