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1、工程取样大全（EngineeringsamplingDaquan）Lessthan100thousandpieces,alsoaccordingtoabatchofmeter.10.2abatchofsamples(20pieces)wererandomlyselectedfromeachbatch.11ordinaryconcretehollowblock,lightweightaggregateconcretesmallhollowblock11.1foreachbatchof10thous
2、andpiecesofacceptance,lessthan10thousandpiecesalsoaccordingtoabatchofmeter.11.2abatchofsamples(5pieces)wererandomlyselectedfromeachbatch.12aeratedconcreteblock12.1thesametype,thesamespecifications,thesamelevelofblock,with1000piecesasabatch,lessthan10
3、00piecesisalsoabatch.50blockswererandomlyselected.12.2fromthesizedeviation,appearanceinspectionofqualifiedblocks,randomlyselectedblocks,made3groupsofspecimensforcompressivestrengthtest,made3groupsofspecimenstododryvolumedensitytest.13forthereinforcem
4、entofconcretehotrollingribbedsteel,roundsteelbar13.1thesamefactory,thesamefurnacetanknumber,thesamespecifications,thesamedeliverystate,every60tonsforabatchofacceptance,lessthan60tons,alsoaccordingtoabatchofmeter.13.22tensilespecimensand2bentspecimens
5、wereacceptedforeachacceptance.13.3choosetwosteelbarstocut,eachcanonlyintercept1Tensileand1coldbendingspecimens.Eachfirstremovetheendofthe500mm,andtheninterceptthesample.13.4specimensof=5d+250~300mmlengthColdbendingspecimenlength=5d+150(dbardiameter)m
6、m14lowcarbonhotrolledrods14.1thesamefactory,thesamefurnacetanknumber,thesamespecifications,thesamedeliverystate,every60tonsforabatchofacceptance,lessthan60tons,alsoaccordingtoabatchofmeter.14.22tensilespecimensand2bentspecimenswereacceptedforeachacce
7、ptance.(choosetwoplatesofsteelbars,eachplatecanonlyintercept1Tensile,onecoldbendspecimen)14.3eachdiskfirstremovetheendofthe500mm,andtheninterceptthesample.14.4specimensof=10d+250~300mmlengthColdbendingspecimenlength=5d+150(dbardiameter)mm15coldtwiste
8、dbars15.1ofthesamegrade,thesamespecifications,thesamebindingmachine,thesameteamevery10tonsforabatchacceptanceoflessthan10tons,alsoaccordingtothenumberofdollars.15.22tensilespecimensand2bentspecimenswereacceptedforeachacceptance.(weight,pitch,thicknes
