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M <br />1 <br />1 <br />I <br />1 <br />1 <br />E. <br />DIVISION 3 <br />CONCRETE <br />03430 - STRUCTURAL PRECAST, <br />PRESTRESSED CONCRETE <br />5.0 gals, per sack. <br />Comply with paragraph requirements concerning mix desi <br />Production of units until Artchitect has approved mix desi Do not start <br />g <br />approval of mix design, do not change mix without prior approval After <br />Arthitect, of <br />6. DESIGN OF UNITS <br />2. Maximum water -cement rat!-: <br />in strict compliance with ACI '18 <br />A. Design units for spans, dead, <br />live and superimposed loads on units. <br />Provide all reinforcing in units as indicated. Where not i <br />design and provide all reinforcing and prestressin tend indicated, <br />approval of Architect. 9 tendon <br />subject to <br />7. JOB CONDITIONS <br />A. Handle, stockpile, and transport in strict accordance with faoricator. <br />Cut openings in plank in field. Cast -in openings in roof <br />than 12" x 12". Prepare proper bearingsurf than larger <br />units. Provide sufficient working spa oaces to rec <br />for crane <br />precast <br />all dirt, dust and grease, wet down and pouh topping slab <br />Clean off <br />'shown on drawings, o thickness <br />8. FLOOR UNITS <br />A. Flat, pretensioned, hollow core, machine cast under ri <br />inspected process similar to those manufactured Sid factory <br />Fab Con, ctured by Spancrete, Flexicore or <br />B. Design criteria: <br />I. Concrete stress conforming to ACI 318-71. <br />2. Design to carry all superimposed d <br />own weight. P ead and live loads along with its <br />3. Submit calculations to the architects office for approval. <br />C. Manufacture, quality and dimensional tolerance of all units i <br />PCI MNL-116, n accord with <br />D. Incorporate embedded plates, angles, and flange weldingstrips. <br />ps. <br />E. As indicated, make provisions for support of suspended ceilings, <br />fixtures, ducts, piping, conduit, and other suspended work. Whenlnotting <br />indicated, use methods of attachment approved by Engineer. Do not use <br />5264 <br />SECTION 03430 - 3 <br />