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DocuSign Envelope ID:07A4359F-6D47-4987-B1F1-BF667ACBB3BA <br /> J. Clear,Waterborne,Membrane-Forming, Curing and Sealing Compound: ASTM C1315, <br /> Type 1, Class A. <br /> 2.4 RELATED MATERIALS <br /> A. Expansion-and Isolation-Joint-Filler Strips: ASTM D1751,asphalt-saturated cellulosic fiber <br /> B. Bonding Agent: ASTM C1059/C1059M,Type II,nonredispersible,acrylic emulsion or styrene <br /> butadiene. <br /> C. Epoxy Bonding Adhesive: ASTM C881, two-component epoxy resin, capable of humid curing <br /> and bonding to damp surfaces, of class suitable for application temperature and of grade and <br /> class to suit requirements, and as follows: <br /> 1. Types IV and V, load bearing, for bonding hardened or freshly mixed concrete to <br /> hardened concrete. <br /> 2.5 CONCRETE MIXTURES,GENERAL <br /> A. Prepare design mixtures for each type and strength of concrete,proportioned on the basis of <br /> laboratory trial mixture or field test data, or both, in accordance with ACI 301. <br /> 1. Use a qualified testing agency for preparing and reporting proposed mixture designs, <br /> based on laboratory trial mixtures. <br /> B. Cementitious Materials: Limit percentage,by weight, of cementitious materials other than <br /> portland cement in concrete as follows: <br /> 1. Fly Ash or Other Pozzolans: 25 percent by mass. <br /> 2. Slag Cement: 50 percent by mass. <br /> 3. Silica Fume: 10 percent by mass. <br /> 4. Total of Fly Ash or Other Pozzolans, Slag Cement, and Silica Fume: 50 percent by mass, <br /> with fly ash or pozzolans not exceeding 25 percent by mass and silica fume not <br /> exceeding 10 percent by mass. <br /> 5. Total of Fly Ash or Other Pozzolans and Silica Fume: 35 percent by mass with fly ash or <br /> pozzolans not exceeding 25 percent by mass and silica fume not exceeding 10 percent by <br /> mass. <br /> C. Admixtures: Use admixtures in accordance with manufacturer's written instructions. <br /> 1. Use water-reducing,high-range water-reducing or plasticizing admixture in concrete,as <br /> required, for placement and workability. <br /> 2. Use water-reducing and-retarding admixture when required by high temperatures,low <br /> humidity, or other adverse placement conditions. <br /> 3. Use water-reducing admixture in pumped concrete <br /> 4. Use corrosion-inhibiting admixture in concrete mixtures where indicated. <br /> 5. Use permeability-reducing admixture in concrete mixtures where indicated. <br /> Orange County Solid Waste Drainage Repairs DAA 2200365/TRC 017055.0000.0000 <br /> Drainage Repair Project November 2023 <br /> Orange County, NC 033000-8/19 <br />