Rev. 7-17-97 HIGH RANGE WATER REDUCERS FOR
MICROSILICA CONCRETE BRIDGE DECK OVERLAY 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. |