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3.02 REMOVAL OF FORMS <br /> A. Formwork supporting weight of concrete, such as beams, soffits, slabs and other structural elements may not be <br /> removed in less than 7 days, and not until concrete has attained 75% of design minimum 28 day compressive <br /> strength. Re-shore members required to support superimposed loads until concrete has attained its specified 28 day <br /> strength. Determine potential compressive strength of in-place concrete by testing field-cured specimens <br /> representative of the concrete location or members,as specified in other Sections. <br /> B. Formwork not supporting concrete may be removed after cumulatively curing at not less than 10 degrees C (50 <br /> degrees F) for 24 hours after placing concrete, provided concrete is sufficiently hard to not be damaged by form <br /> removal operation,and provided that curing and protection operations are maintained. <br /> C. Form facing material may be removed four days after placement, only if shores and other vertical supports have <br /> been arranged to permit removal of form facing material without loosening or disturbing shores and supports. <br /> 3.03 RE-USE OF FORMS <br /> A. Clean and repair surfaces of forms to be re-used in the Work. Split,frayed,delaminated or otherwise damaged form <br /> facing material are not acceptable. Apply new form coating compound material to concrete contact surfaces as <br /> specified for new formwork. When forms are reused for successive concrete placement,thoroughly clean surfaces, <br /> remove fins and laitance,and tighten forms to close all joints. Align and secure joints to avoid offsets. <br /> 3.04 PERMANENT METAL FORMS <br /> A. Place permanent metal forms as shown on the Drawings. <br /> B. Clean thoroughly of oil,grease,rust and elements that would reduce adhesion of concrete. <br /> 3.05 FIELD QUALITY CONTROL <br /> A. Special Structural Testing and Inspection. <br /> 1. Special Structural Testing and Inspection shall be performed by qualified parties as specified herein, and in <br /> accordance with the provision of Section 01410. <br /> 2. Personnel Qualifications: <br /> a. Special Inspector-Technical: Not used. <br /> b. Special Inspector-Structural: <br /> 1.) Structural I-Graduate civil/structural engineer,with experience in the design of structural systems <br /> of this type. Inspection shall be performed under the direct supervision of a registered <br /> civil/structural engineer. <br /> 2.) Structural II-Civil/structural engineer regularly engaged in the design of structural systems of this <br /> type,registered in the state in which the project is located. The registered engineer shall review and <br /> approve all inspection reports. <br /> 3. The Owner will employ a Special Inspector for the following inspections: <br /> a. Verify formwork for all concrete requiring Special Inspection per Section 03200 will result in member <br /> size,location,and configuration as described on the contract documents. <br /> END OF SECTION 03100 <br /> 03100-5 No.99132-CP2 <br />