Warranty The Contractor shall warrant all work against any defects in materials and workmanship for a period of one (1) year. Unless otherwise specified, the warranty periods shall begin after the Certificate of Acceptance is issued for the Contract. 2.4 Submittal Following submittals shall be provided by the contractor: Technical data sheet showing characteristics of the additive to be used by the precaster. A letter of certification from the precaster stating that the correct amount and correct mixing procedure as recommended by the manufacturer were followed for all antimicrobial concrete. Copy of sample test result as specified in Section 2.2. PART 3: PRODUCTS Concrete Additive Antimicrobial additive shall be used to render the concrete uninhabitable for bacteria growth. The liquid antibacterial additive shall be an EPA registered material and the registration number shall be submitted for approval prior to use in the project. The amount to be used shall be as recommended by the manufacturer of the antibacterial additive. This amount shall be included in the total water content of the concrete mix design. The additive shall be added into the concrete mix water to insure even distribution of the additive throughout the concrete mixture. The antibacterial additive shall have successfully demonstrated prevention of MIC in sanitary sewers for ten or more years. The antibacterial additive shall be used by factory certified precast concrete plants.
Warranty The Contractor shall warrant all work against any defects in materials and workmanship for a period of one (1) year. Unless otherwise specified, the warranty periods shall begin after the Certificate of Acceptance is issued for the Contract. 2.4 Submittal Following submittals shall be provided by the contractor: Technical data sheet showing characteristics of the additive to be used by the precaster. A letter of certification from the precaster stating that the correct amount and correct mixing procedure as recommended by the manufacturer were followed for all antimicrobial concrete. Copy of sample test result as specified in Section 2.2. PART 3: PRODUCTS Concrete Additive Antimicrobial additive shall be used to render the concrete uninhabitable for bacteria growth. The liquid antibacterial additive shall be an EPA registered material and the registration number shall be submitted for approval prior to use in the project. The amount to be used shall be as recommended by the manufacturer of the antibacterial additive. This amount shall be included in the total water content of the concrete mix design. The additive shall be added into the concrete mix water to insure even distribution of the additive throughout the concrete mixture. The antibacterial additive shall have successfully demonstrated prevention of MIC in sanitary sewers for ten or more years. The antibacterial additive shall be used by factory certified precast concrete plants.
5.6_PrecastConcreteAdditiveForWastewaterManhole.docx