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Specification No . : RGS0024-87 <br /> Part II - SPECIFIC CONDITIONS <br /> Section 11 - Concrete Work <br /> SECTION 11 - CONCRETE WORK <br /> 11 . 0 This section describes concrete work done in connection <br /> with tank hold down slabs. <br /> 11 . 1 Related Documents : <br /> Project plans and general conditions of the Pacific Gas & <br /> Electric Company apply to work of this section. <br /> 11 . 2 Description of Work : <br /> 11 . 2 . 1 The extent of concrete work shown on drawings for <br /> underground tank hold-down slabs . <br /> 11 . 3 Quality Assurance <br /> 11 . 3 . 1 Codes and Standards : Comply with provisions of <br /> following codes , specifications , and standards except <br /> where more stringent requirements are shown or <br /> specified : <br /> ACI 301 " Specifications for Structural Reinforced <br /> Concrete" <br /> ACI 318 " Building Code Requirements for Reinforced <br /> Concrete" . <br /> Concrete Reinforcing Steel Institute , "Manual of <br /> Standard Practice" . <br /> 11 . 3 . 2 Concrete Design Mixes : Employ , at Contractor ' s expense , <br /> a testing laboratory acceptable to Engineer to design <br /> concrete mixes . <br /> 11 . 3 . 3 Laborator Test Reports : Submit laboratory reports for <br /> concrete mix design as specified . <br /> 11 . 4 Requirements or Regulatory Agencies : <br /> Uniform Building Code - as applicable . <br /> 11 . 5 Products : <br /> 11 . 5 . 1 Forms for Exposed Finish Concrete : Unless otherwise <br /> indicated construct formwork for exposed concrete <br /> surfaces with plywood , or other acceptable panel-type <br /> materials , to provide continuous , straight , smooth , <br /> • exposed surfaces . Furnish in largest practicable sizes <br /> to minimize number of joints . Provide form material <br /> XI--1 <br />