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• AITC Manual of Timber Construction, Latest Edition. <br />30 CFR 57 Safety and Health Standards -Underground Metal and Nonmetal <br />Mines <br />CRD-C-94 Construction Joints. <br />1.4 Submittals <br />The Contractor shall submit the following supporting documentation for the adequacy of <br />the formwork, in a timely manner that suits the Contractors overall Schedule, but no later <br />than 14 days prior to the scheduled commencement of forming of the concrete plug <br />or cellular concrete containment barriers: <br />• Shop detail drawings with appropriate calculations to support the adequacy of the <br />formwork with regard to such parameters as placement rate, slump and assumed set <br />time. This shall also include the details of the components to be used and method of <br />construction. <br />Manufacturer's specification sheets for any manufactured items utilized in construction <br />of the formwork and for materials used for surface treatments. <br />Details of proposed installation procedure, including the method to be adopted for <br />sealing the forms to the rock surface to produce amortar-tight joint. <br />1.5 Quality Assurance <br />• The design and detail of the formwork shall be conducted under direct supervision of a <br />Professional Engineer experienced in design of this work. <br />Contractor must ensure that the formwork is fabricated in accordance with the approved <br />shop drawings and the work is performed in accordance with the referenced Standards. <br />PART 2-PRODUCTS <br />2.1 Form Materials <br />Main Forming Materials <br />Forms to contain the plug concrete or cellular concrete may be constructed of steel, timber or a <br />combination thereof: as approved by the Engineer in the Shop Drawing Submittal. For the <br />appropriate concrete finish, if wood is used, it shall be "Standard" plywood, shiplap or <br />square-edged boards. <br />Miscellaneous Hardware <br />Bolts shall be as specified in the shop detailed drawings. <br />• Grout pipes and water pipe shall be ASTM A-53 stainless steel, standard weight pipe. <br />