Rev. 7-17-97

 HIGH RANGE WATER REDUCERS FOR MICROSILICA CONCRETE BRIDGE DECK OVERLAY 
722-B-105

          DESCRIPTION. An approved high range water reducing, HRWR, or high range water reducing retarding, HRWRR, portland cement concrete admixture system will be permitted for use in a microsilica concrete bridge overlay.

        The HRWR or HRWRR shall be from the Department's listing of preapproved materials.

         ADMIXTURE CERTIFICATIONS. Certification shall be in accordance with 912.03.