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<br />Copyright 2005 AIA <br /> <br />MASTERSPEC Short Form <br /> <br />02/05 (R 05/06) <br /> <br />original and repaired work, when viewed in typical daylight illumination from a distance of 20 <br />teet (6 m). <br /> <br />C. <br /> <br />Prepare and repair damaged galvanized coatings with galvanizing repair paint according to <br />ASTM A 780. <br /> <br />D. <br /> <br />Wire brush, clean, and paint damaged prime-painted components with same type of shop <br />pnmer. <br /> <br />E. <br /> <br />Remove and replace damaged precast structural concrete units that cannot be repaired or when <br />repairs do not comply with requirements as determined by Architect. <br /> <br />3.5 <br /> <br />CLEANING <br /> <br />A. <br /> <br />Clean mortar, plaster, fireproofmg, weld slag, and other deleterious material from concrete <br />surfaces and adjacent materials immediately. <br /> <br />B. <br /> <br />Clean exposed surfaces of precast concrete units after erection and completion of joint treatment <br />to remove weld marks, other markings, dirt, and stains. <br /> <br />1. Perform cleaning procedures, if necessary, according to precast concrete fabricator's <br />written recommendations. Clean soiled precast concrete surfaces with detergent and <br />water, using stiff fiber brushes and sponges, and rinse with clean water. Protect other <br />work from staining or damage due to cleaning operations. <br />2. Do not use cleaning materials or processes that could change the appearance of exposed <br />concrete fmishes or damage adjacent materials. <br /> <br />END OF SECTION 03410 <br /> <br />PLANT -PRECAST STRUCTURAL CONCRETE <br /> <br />03410 - 11 <br />