Construction Manual  

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  • 10 MATERIALS

  • SECTION 1000 PORTLAND CEMENT CONCRETE PRODUCTION AND DELIVERY

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    Contents

    1000-4 (I) & (J) PORTLAND CEMENT CONCRETE FOR STRUCTURES AND INCIDENTAL CONSTRUCTION

    ADDITIONAL RESOURCES

     
    1000-4 (I) & (J) PORTLAND CEMENT CONCRETE FOR STRUCTURES AND INCIDENTAL CONSTRUCTION
     
    • Where a concrete mix containing fly ash or slag cement is being used and the Contractor desires higher early strength without resorting to a mix without fly ash or slag cement, he may use, with the permission of the Engineer, a higher class of concrete that contains fly ash or slag cement. For example, Class AA concrete containing fly ash or slag cement may be substituted for Class A or Class B containing fly ash or slag.
    • Fly ash and other pozzolans called for in the Standard Specifications or Project Special Provisions may not be eliminated from concrete mix designs to be used for deck slab or approach slab pours without consulting with the Area Construction Engineer and Regional Bridge Construction Engineer.  Fly ash contains anti-corrosive properties and should not be eliminated without discussing with Construction Unit staff first.​​
    • Independent Assurance comparative sampling and testing shall be performed on concrete mixtures placed on FHWA funded projects. Please notify the Section Concrete Technicians when the appropriate amount of material has been placed.
    ADDITIONAL RESOURCES
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Technician's Checklists

Materials

Measurement and Payment
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