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PGSF WMVD Storm and Combined Sewer - Construction Package 2 Cast-in-Place Concrete <br />Project No. 180162 03 30 00 - 12 <br /> <br />2.04 BONDING COMPOUNDS <br />A. Epoxy resin bonding compounds for use in wet areas shall conform to ASTM C881 Types <br />IV or V, Class A, B, or C depending on temperature at use. Acceptable products include: <br />BASF Corporation “MasterEmaco ADH 327RS”; Sika Chemical Corporation “Sikadur 32”; <br />or approved equal. <br />B. Non-epoxy bonding compounds for use in dry areas for non-structural bonding or as <br />noted on the drawings shall conform to ASTM C1059 Type II. Acceptable products <br />include: Penetron Specialty Products “Acrylic Bondcrete”; ChemMasters “Cretelox”; or <br />approved equal. <br />C. Apply bonding compounds in accordance with the manufacturer’s instructions. <br />2.05 EPOXY FOR CRACK INJECTION <br />A. Use a two-component, moisture insensitive, high modulus, injection grade, 100 percent <br />solids, epoxy-resin blend. Consistency as required to achieve complete penetration into <br />cracks. Material shall conform to ASTM C881 Type 1 Grade 1. Acceptable products <br />include: Sika Corporation “Sikadur 52”; Adhesives Technology Corporation “Crackbond <br />SLV302”; or approved equal. <br />B. Use epoxy injection for structural crack repairs except as noted below for non-structural <br />cracks in liquid-containing concrete structures. The Engineer shall determine whether a <br />crack is classified as structural or non-structural. <br />2.06 CHEMICAL GROUT FOR CRACK INJECTION <br />A. Use hydrophobic polyurethane grout at the Engineer's discretion as an alternative for <br />sealing non-structural cracks in concrete structures intended to be watertight. Acceptable <br />products for sealing hairline cracks include: GCP Applied Technologies "DE NEEF Flex SLV <br />PURe” (must be used with DE NEEF Flex Cat PURe); or Sika Corporation “SikaFix HH LV” <br />as appropriate for crack width; or approved equal. Coordinate with product supplier to <br />verify and select appropriate product for crack widths to be injected. <br />2.07 SURFACE RETARDANT <br />A. Retardant for exposing aggregate for unformed surfaces in construction joints shall be <br />Sika Corporation “Rugasol-S”; GCP Applied Technologies “Top-Cast”; or approved equal. <br />B. Apply retardant in accordance with manufacturer’s instructions sufficient to assure <br />a minimum penetration of 1/4 inch. <br />2.08 CURING AND SEALING COMPOUNDS <br />A. Acceptable products include: BASF Corporation “MasterKure CC 250SB”; Dayton <br />Superior “Cure & Seal 25% J22UV”; or approved equal, conforming to ASTM C1315. <br />B. Compound shall be clear and applied in accordance with the manufacturer’s instructions.