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DIVISION 3 <br />CONCRETE <br />03500 - CEMENTITIOUS UNDERLAYMENT <br />B. <br />Concrete nder y la ment• <br />1. Theroayment <br />2. Acryl <br />' <br />3. Acrylimer <br />4. Washeravel; 1/4" to 1/8" in size <br />' <br />C. <br />Water: S clean, free from oil, acid, alkali, vegetable matter, or <br />impuriti eeffect the setting of gypsum. <br />D. <br />Sealer, nmended by manufacturer and installer. Must be compatible <br />1 <br />to fi nishnaterial . <br />4. <br />INSTALLAT <br />r <br />A. <br />InstallatIl be cmopleted in strict compliance with manufacturer's <br />recommends experienced contractors using approved mixing/pumping <br />equipment;ness as noted on the drawings. <br />B. <br />Installatlypsum concrete underlayment will occur after all <br />partitiomywall have been installed. <br />C. <br />All crack:s, and voids in precast plank to be grouted under Section <br />03410 - P:oncrete. <br />' <br />D. <br />Spray one-' primer with a concrete sprayer over entire surface. Not <br />less than or more than 24 hours prior to the pour. <br />E. <br />Protect alayment from damage by freezing weather and construction <br />operation least 24 hours after application. <br />F. <br />Apply seaured surfaces. <br />u <br />1 <br />1 <br />I; <br />1 <br />5264 SECTION 03500 - 2 ' <br />1 <br />