Laserfiche WebLink
' DIVISION 03 Sec6on 03300- Cast-In-Place Concrete <br /> � 1.04 QUALTTY ASSURANCE <br /> A. Comply with provisions of ACI 301,Specifications for Structural Concrete for Buildings," <br /> ' ACI 318,"Building Code Requirements for Reinforced Concrete.and CRSI"Manual of <br /> Standard Practice. except where more stringent requirements are indicated. <br /> � 1. Concrete Testing Service:Engage a testing agency acceptable to Architect to perform <br /> materials evaluation fiesting and to design concrete mixes. <br /> a. Materials certificates signed by concrete producer and Contractor may be submitted <br /> ' in lieu of materials laboratory testing when acceptable to Architect. <br /> 1 PART 2. PRODUCTS <br /> 2.01 FORM MATERIALS <br /> ' A. Furnish form materials with sufficient stability to withstand pressure of placed concrete <br /> without bow or deflection. <br /> ' 2.02 CONCRETE MATERIALS: <br /> � A. As follows: <br /> 1. Cement :ASTM C 150,normal-Type I Portland,unless otherwise indicated. <br /> t2. Fly Ash ASTM C 618<Type F. <br /> ' 3 Aggregates: ASTM C 33, except local aggregates of proven durability may be used <br /> when acceptable to Architect. <br /> 4. Water:Potable,not detrimental to concrete. <br /> � B. Admixtures: Provide admixtures that contain not more than 0.1 percent chloride ions <br /> ' 1. Air-Entraining Admixture:ASTM C 260. <br /> 2. Water-Reducing,Retarding,and Accelerating Chemical Admixtures:ASTM C 494 <br /> � 3.Ensure compatibility of each admixture with others used. <br /> C. Related Materials as follows: <br /> � 1. Vapor Retarder: Clear 8 Mil thick polyethylene. <br /> � 2. Absorptive Cover:Burlap cloth made from jute or kenaf,weighing approximately 9 oz. <br /> per sq.yd., complying with AASHTO M 182,Class 2. <br /> D. Mix Proportions and Design:Proporkion mixes complying with mix design procedures <br /> , specified in ACI 301-99. <br /> 1. Limit use of fly ash to not exceed 20 percent of cement content by weight. <br /> � a e 03300- 2 <br /> PS <br /> HENNEPIN COUNTY Orono Salt Storage <br /> ' March 22,2002 Project No.:0031569 Contract No.:O�S 1 R2 <br />