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8. All formwork to comply with latest edition of A.C.I. Standards 347. <br />3.02 FORMWORK MATERIALS AND ACCESSORIES: <br />A. Provide formwork materials and accessories of permanent and temporary <br />nature. Materials and accessories shall be non - corroding and non - staining <br />under conditions of service and storage. When temporary materials are <br />used, bring them to original condition before reuse. Discard damaged and <br />corroded materials, and materials which, by wear or change during earlier <br />uses, will cause change in the color or texture of the concrete. <br />B. Steel Forms: Uncoated steel, 3/16 inch minimum thickness, fabricated to <br />close tolerances, protected only by the specified release agent, braced so <br />as not to bend, dent or dimple under wet concrete loads, vibrator impact, <br />and tool impact. Maintain steel forms in rust -free condition by use of steel <br />wool and light grinding, followed by coats of the specified release agent. <br />1 Forms shall be adjustable to be brought into true alignment without stops or <br />ridges. <br />' <br />C. <br />Medium Density Overlay (MDO) Plywood Forms: PS -1, B -B High Density <br />Concrete Form Overlay, Class I, unoiled. <br />' <br />1. Butt form panels, make contact surface fully flush and seal butting <br />holes with sponge form tape. Chamfer edges of beams and ceilings. <br />2. Where MDO plywood is used to form ceilings or beams, use no <br />piece of MDO plywood that has been patched or damaged. <br />' <br />D. <br />Plywood Forms: PS -1, B -B Concrete Form, Class I, unoiled. <br />1 <br />E. <br />Rustication Strips: Varnished ponderosa pine strips or equally rigid <br />non - staining plastic, 3/4 inch deep, 1 -1/2 inches by 1 inch, suitable for <br />fastening from outside form by non - corroding fasteners. <br />jF. <br />Drip Forms: Varnished ponderosa pine or equally rigid non - staining plastic, <br />1/2 inch wide on each leg. <br />G. <br />Bevel or Chamfer Strips: Non - staining plastic, 3/4 inch wide on each leg. <br />' <br />H. <br />V- Grooves: Varnished ponderosa pine or equally rigid non - staining plastic, <br />3/4 inch on each leg. <br />' <br />I. <br />Plugged Cone Form Ties: Rod type, with ends or end fasteners which can <br />be removed without spalling the concrete and which leave a hole equal in <br />depth to the required reinforcement clearance. Form ties shall be of a <br />1 <br />07/06 <br />03300 -9 05 -5564 <br />