Laserfiche WebLink
<br />0J2435 <br /> <br />Durango Pumoing Plant - Stage 1 <br /> <br />~ <br /> <br /> Table 03300D - Unformed Surfaces <br />Surface Finish Maximum Acceptable Curing <br /> Allowable Methods <br /> Tolerances <br />Tops of walls not exposed U2 T3 Water <br />to view White wax-base or white <br /> water-emulsified resin- <br /> base curing compound <br /> Polyethylene film <br />Tops of walls exposed to U3 T4 Water <br />vIew White wax-base or white <br /> water-emulsified resin- <br /> base curing compound <br /> Polyethylene film <br />Intake structure floor U3 T4A Water <br /> Clear water-emulsified <br /> resin-base curing <br /> compound <br />Colored architectural U2 T4 Clear water-emulsified <br />concrete resin-base curing <br /> compound <br /> No fugitive dye for curing <br /> compound for colored <br /> concrete <br /> <br />F. Protection <br /> <br />1. Protect all concrete against damage until final acceptance by the Contracting <br />Officer. <br /> <br />2. Do not load concrete or remove forms and shoring until the concrete has gained <br />sufficient strength to safely support its weight and all imposed loads. <br /> <br />3. Protect fresh concrete against: erosion from rain, hail, sleet, or snow; <br />contamination from foreign materials; and damage from foot traffic until the <br />concrete has hardened. <br /> <br />4. Protect hardened concrete surfaces which receive U2 or U3 [mish against damage <br />from foot traffic and other construction activity by covering with protective mats, <br />plywood, or by other effective means. Methods of protection are subject to <br />approval by the Contracting Officer. <br /> <br />5. Whenever freezing temperatures are imminent, enclose exposed concrete with <br />warmth-retaining sheets or other insulating means and maintain the concrete at a <br />temperature of not less than 50 degrees for 72 hours after placement and an <br />additional 72 hours above freezing. <br /> <br />6. Where artificial heat is employed, take special care to prevent the concrete from <br />drying. <br /> <br />Cast-in-Place Concrete <br />03300 - 31 <br />