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Samson Oceanfront Park <br />City of Sunny Isles <br />Technical Specifications <br />STUCCO, CEMENT PLASTERING 092400-2 <br /> <br />A. General: <br />1. All mixes are by volume unless otherwise specified. All mix proportions are suggestive only. <br />Variations to meet local conditions to achieve desired finish are permitted within limits specified in <br />ASTM C 926-98. <br />2. Make lime putty from hydrated lime. Machine-mix with water to form putty. Allow to stand at least <br />15 minutes before using. <br />3. Water shall be potable and free from deleterious materials, which would impair the work, and from a <br />source approved by Architect. <br /> <br />B. Stucco: Install in three coats as follows: <br />1. Scratch and Brown Coats (2 coats) <br />a. Low absorption bases <br />1 part Portland cement <br />¾ to 1½ parts lime <br />2½ to 4 parts aggregate <br />1 lb. fiber per sack of cement (on metal lath) <br />b. High absorption Base <br />1 part Portland cement <br />3/4 to 2 parts lime <br />2 1/2 to 5 parts aggregate <br />1 lb. fiber per sack of cement <br />2. Finish Coat: <br />a. Finish coat shall bring total stucco application to full thickness (5/8") and provide a texture <br />pattern as approved by the Architect. Finish texture shall be smooth. <br /> <br />PART 3 - EXECUTION <br /> <br />3.01 <br /> <br />EXAMINATION OF SUBSTRATES: <br />A. Examine substrates and the conditions under which the stucco work is to be installed. Surface most be <br />water pressure clean, do not proceed until unsatisfactory conditions detrimental to the proper and timely <br />completion of the work have been corrected. <br /> <br />3.02 INSTALLATION: <br /> <br /> <br />A. General: Apply 3-coat work on all substrates indicated to receive Stucco on plan for total of 5/8 inch. <br />Apply finish coat with a reasonable uniform thickness over entire surface, with vertical surfaces flat, <br />straight and plumb. Make interior angles square, and make corners square but slightly rounded. Where <br />casing beads do not occur at the juncture of stucco and hollow metal frames, cut a groove in the base coat <br />and later in the finish coat to minimize the appearance of cracks at these joints. <br /> <br />B. Mixing: <br />1. Use mechanical mixers for mixing stucco only. Do not use caked or lumped material. Clean <br />mechanical mixers, mixing boxes and tools after mixing each batch; keep free of stucco from previous <br />mixes. Thoroughly mix stucco with proper amount of water until uniform in color and consistency. <br />Tempering of stucco will not be permitted. Discard stucco that has begun to stiffen. Provide <br />waterproof protection under mixer. <br />2. Machine Applied Stucco: Determine proper consistency by slump test as follows: Take slump test <br />samples from nozzle of stucco cone. Take samples as often as may be required or as directed by <br />Architect. Maximum slump shall be 2 1/2 inches. <br />C. Application: <br />1. Apply fiberglass mesh strip lath at all junctures of dissimilar substrate materials (masonry-concrete) <br />before proceeding with base coat of stucco work. <br />2. Application shall be by hand or machine. Limit machine application to base coats, except where