Laserfiche WebLink
1 <br /> Provide as-cast smooth form finish for formed concrete surfaces that are to be exposed to view. <br /> Or that are to be covered with a coating material applied directly to the concrete,or a covering <br /> material bonded to the concrete such as waterproofing,damp proofing,painting or other similar <br /> system. <br /> Produce smooth form finish by selecting form material to impart a smooth, hard, uniform 1 <br /> texture and arranging them orderly and symmetrically with a minimum of seams. Repair and <br /> patch defective areas with all fins or other projections completely removed and smoothed. <br /> C. Curb Finishes <br /> Curbs shall be screeded off accurately to true lines and planes or warped surfaces as indicated <br /> or directed.Finish smooth.Arises shall be true and straight or properly eased where curved and <br /> neatly rounded with approved tool. Smooth trowel fmish with corners rounded to 3/4-inch <br /> radius. I <br /> 3.5 CONCRETE CURING AND PROTECTION <br /> A. General 1 <br /> 1. Protect freshly placed concrete from premature drying and excessive cold or hot <br /> temperature and maintain without drying at a relatively constant temperature for the period <br /> of time necessary for hydration of the cement and proper hardening of the concrete. <br /> 2. Start initial curing as soon as free moisture has disappeared from the concrete surface after <br /> placing and finishing. Weather permitting, keep continuously moist for not less than 72 <br /> hours. I <br /> 3. Begin final curing procedures immediately following initial curing and before the concrete <br /> has dried.Continue final curing for at least seven(7)days and in accordance with ACI 301 <br /> procedures.Avoid rapid drying at the end of the final curing period. <br /> B. Curing Methods ' <br /> Perform curing of concrete by moist curing,by moisture-retaining cover curing, by membrane <br /> curing or by combinations thereof, as appropriate. <br /> C. Temperature of Concrete during Curing <br /> 1. When the atmospheric temperature is 40°F and below, maintain the concrete temperature <br /> between 50°F and 70°F continuously throughout the curing period. When necessary, make <br /> arrangements before concrete placing for heating, covering, insulation or housing as <br /> required to maintain the specified temperature and moisture conditions continuously for <br /> the concrete curing period. Provide cold weather protections complying with the <br /> requirements of ACI 306. <br /> 2. When the atmospheric temperature is 80°F, and above,or during other climatic conditions <br /> which will cause too rapid drying of the concrete, make arrangements before the start of <br /> Legion Golf Course Stormwater Detention Project Concrete Work <br /> WO#UP3620 03 11 00- 8 <br />