Laserfiche WebLink
' 1 recommendations. <br /> 2 <br /> ' 3 C. Floors shall receive three applications of hardener, mixed and applied as specified for heavy <br /> 4 duty floors. <br /> 5 <br /> s 3.13 CURING AND PROTECTION <br /> 8 A. General: Beginning immediately after placement, protect concrete from drying, excessively <br /> 9 hot and cold temperatures and mechanical injury. Keep moisture loss to a minimum until <br /> 10 cement has hydrated and concrete is hard. Keep concrete constantly moist during the <br /> 11 curing period. Follow color admixture manufacturer's recommendations for integrally colored <br /> 12 concrete. <br /> 13 <br /> 14 B. Curing: <br /> 15 <br /> 18 1. Formed Surfaces: Keep forms wet. Cool metal forms exposed to the sun with water. <br /> 17 Forms shall remain in place for 7 days unless material specified for curing materials in <br /> 18 Part 2 is applied. If curing compound is used, apply in accordance with manufacturer's <br /> 19 instructions. Curing compound shall not be used on any wall scheduled to be painted. <br /> 20 <br /> 21 2. Slabs: Immediately after finishing, apply one of the materials specified in article entitled <br /> 22 Curing Materials, but use membrane forming liquid only with Engineer's approval. <br /> 23 <br /> ' 24 3. Duration of Curing: 7 days minimum. <br /> 25 <br /> 25 C. Protection: <br /> 27 <br /> 28 1. In cold weather, maintain the moisture conditions but also, by heating or covering, <br /> 29 maintain the temperature of the concrete between 50 degrees F and 70 degrees F for <br /> 30 the entire curing period. <br /> 31 <br /> 32 2. In hot weather take immediate steps to protect newly finished concrete from drying <br /> 33 effects of wind and sun, and maintain temperature of the air surrounding the concrete <br /> 34 uniform within 5 degrees F in any one hour or 50 degrees F in any 24 hour period. <br /> 35 <br /> 38 3. During curing period, protect concrete from mechanical damage, loading, shock and <br /> 37 vibration. <br /> ' 38 <br /> 39 3.14 CONSTRUCTION OF CONCRETE FILLETS, TOPPING, AND EQUIPMENT PADS <br /> 40 <br /> ' 41 A. Concrete fillets, topping and equipment pads shall be placed as soon as possible after <br /> 42 completion of the curing period of the tank walls and structural floors. Contact surfaces shall <br /> 43 be thoroughly cleaned to the degree recommended by the bonding agent manufacturer. <br /> 44 <br /> 45 B. Bonding agent shall be accurately and thoroughly mixed and applied at the manufacturer's <br /> 48 recommended coverage rate. Mix only the amount which can be used prior to expiration of <br /> 47 the pot life. Concrete shall be immediately placed over the fresh surface before setting of <br /> 48 the agent. Bonding agent which sets up prior to placing concrete shall be recoated with a <br /> 49 fresh coat. <br /> 50 <br /> ' 51 C. Concrete fillets, topping, and equipment pads shall be accurately screeded to the slopes and <br /> 52 elevations shown and steel trowel finished. Cure concrete as specified for slabs above. Set <br /> CONCRETE <br /> ' 042894 03100-15 <br />