ASTM_C_935_-_13.pdf

Designation:C93513Standard Specification forGeneral Requirements for Prestressed Concrete PolesStatically Cast1This standard is issued under the fixed designation C935;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers general requirements for pre-stressed concrete poles statically cast for use as structuralsupports for lights,distribution,transmission,and dead endpoles.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2.Referenced Documents2.1 ASTM Standards:2A36/A36M Specification for Carbon Structural SteelA82/A82M Specification for Steel Wire,Plain,for ConcreteReinforcementA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA416/A416M Specification for Steel Strand,UncoatedSeven-Wire for Prestressed ConcreteA421/A421M Specification for Uncoated Stress-RelievedSteel Wire for Prestressed ConcreteA586 Specification for Zinc-Coated Parallel and HelicalSteel Wire Structural StrandA615/A615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete ReinforcementA722/A722M Specification for Uncoated High-StrengthSteel Bars for Prestressing ConcreteC31/C31M Practice for Making and Curing Concrete TestSpecimens in the FieldC33/C33M Specification for Concrete AggregatesC39/C39M Test Method for Compressive Strength of Cylin-drical Concrete SpecimensC42/C42M Test Method for Obtaining and Testing DrilledCores and Sawed Beams of ConcreteC94/C94M Specification for Ready-Mixed ConcreteC150/C150M Specification for Portland CementC172/C172M Practice for Sampling Freshly Mixed Con-creteC173/C173M Test Method forAir Content of Freshly MixedConcrete by the Volumetric MethodC231/C231M Test Method forAir Content of Freshly MixedConcrete by the Pressure MethodC260/C260M Specification for Air-Entraining Admixturesfor ConcreteC309 Specification for Liquid Membrane-Forming Com-pounds for Curing ConcreteC330/C330M Specification for Lightweight Aggregates forStructural ConcreteC403/C403M Test Method for Time of Setting of ConcreteMixtures by Penetration ResistanceC494/C494M Specification for Chemical Admixtures forConcreteC595/C595M Specification for Blended Hydraulic CementsC618 Specification for Coal Fly Ash and Raw or CalcinedNatural Pozzolan for Use in Concrete3.Basis of Acceptance3.1 Acceptability of prestressed concrete poles produced inaccordance with this specification shall be determined by theresults of compressive strength tests of concrete cylinders andmill certificates for the reinforcing steel.A written statement,signed by the manufacturer,shall verify that the cement,aggregates,admixtures,and steel conform to the applicablespecifications for the material and that the preparation ofequipment,mixing,conveying,placing,consolidation,andcuring conforms to the requirements of the applicable standardspecifications.Concrete strength shall be determined by thecompressive strength tests of cylinders.The manufacturersstatement shall also certify adherence to tolerance on dimen-sions.Acceptability of the concrete strength of completedprestressed concrete poles may also be determined by com-pression tests of concrete cores in accordance with TestMethod C42/C42M.1This specification is under the jurisdiction ofASTM Committee C27 on PrecastConcrete Products and is the direct responsibility of Subcommittee C27.20 onArchitectural and Structural Products.Current edition approved April 1,2013.Published April 2013.Originallyapproved in 1980.Last previous edition approved in 2002 as C935 80(2002)which was withdrawn January 2011 and reinstated in April 2013.DOI:10.1520/C0935-13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.Materials4.1 CementPortland cement shall conform to the require-ments of Specification C150/C150M or shall be blendedhydraulic cement conforming to the requirements of Types ISor IP Specification C595/C595M.4.2 AggregateThe concrete shall be made with fine andcoarse aggregates that conform to Specification C33/C33M orC330/C330M.The nominal maximum size of the coarseaggregate shall not exceed15the minimum dimension of themember or34of either the clear spacing between the reinforc-ing steel or the clear cover.4.3 WaterWater used for curing,for washing aggregates,and for mixing concrete shall be free of oils,organic materials,and other substances in amounts that ma