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THE CITY OF SUNNY ISLES BEACH <br />PROJECT NO. 21-1011 <br />BUILDING DEPARTMENT RELOCATION TO ANNEX <br /> <br />Project No. 21-1011 November 2024 035300 Concrete Floor Topping-3 <br />a. 100 percent natural emery aggregates, minimum 58% aluminum oxide <br />and 24% ferric oxide. <br />b. ACI 544.2 R89, Impact resistance. At seven days, no cracking after 4500 <br />blows. <br /> <br />c. ASTM C 1202, Chloride Ion Penetrability Results: rating: "Very Low," less <br />than 1,000 coulombs passing. <br /> <br />d. ASTM C 666/666M, Freeze-Thaw Durability Factor not less than 90%. <br />B. Evaporation Retardant: E-CON, by L&M Construction Chemicals, Inc. <br />C. Curing Compound: DRESS & SEAL WB 30, by L&M Construction Chemicals, Inc. <br />D. Semi-Rigid Joint Filler: JOINT TITE 750, by L&M Construction Chemicals, Inc. <br />E. Bonding Agent: Epo Bond by L&M Construction Chemicals, Inc. <br />F. Concrete Curing Cover: Transguard 4000 by Reef industries, or Hydracure sheeting, by <br />PNA Construction Technologies, or equal. <br />PART 3 - EXECUTION <br />3.1 EXAMINATION <br />A. Verify by examination that surfaces are acceptable to receive the concrete topping. Notify <br />the Architect immediately if surfaces are not acceptable to receive material. <br />3.2 PREPARATION <br />A. Clean surfaces thoroughly prior to installation. <br />B. Prepare surfaces using the methods recommended by the manufacturer for achieving the <br />best result for the substrate under the project conditions. <br />3.3 CONCRETE PLACEMENT <br />A. Follow ACI 302.1R-96 recommendations for placement for concrete toppings. <br />B. Placement Over Plastic Concrete: <br /> <br />1. Maximum slump of five inches. <br /> <br />2. Maximum air content of three percent (3 percent). <br /> <br />3. Do not use set accelerating admixtures, such as calcium chloride. <br />3.4 APPLICATION <br />A. Over Pre-Set Concrete: The top surface of the concrete shall be scarified and left sound <br />but irregular, exposing the topmost surface of the coarse aggregate with a minimum <br />amplitude of 1/4 inch (6 mm) between peaks and valleys. The bonding agent is prepared <br />by mixing one part by volume Everbond with one part by volume dry Portland cement. <br />The bonding slurry is scrubbed into the surface of the substrate that is saturated surface <br />damp (SSD) no more than 15 minutes before the placement of the concrete topping. Do