混凝土施工技术要求英文echnical secificaions for concree

TECHNICALSPECIFICATIONSFORCONCRETECONSTRUCTIONFormworkSFormAssembly Formjoints/seamsshallhavenogroutleaking.Beforeplacingconcrete,formboardshallbemoistenedwithwater,butnowaterdeposit.2.1.2Formmaterialshallbeeithersteel,plywood,plastic,etc,thesupportingframeshallbesteel,andthematerialpropertyshallcomplywiththecurrentnationalstandards.2.1.3 Thecontactsurfacebetweentheformsandconcreteshallbecleanedandappliedwithseparatingagent.2.1.4 Beforeplacingconcrete,theforeignmattersintheformsshallbecleaned.2.1.5 Whenthecast-inplacereinforcedconcretegirder/slabswithspannolessthan4meters;itsformsshallbearchedaccordingtodesignrequirement.Whenthereisnocleardesignrequirement,thearchcamberheightshallbe1/1000-3/1000ofthespan.2.1.6 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