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1、迁钢3#高炉炉前系统1#场渣铁沟钢结构及耐材更换施工方案迁钢3#高炉炉前系统1#场渣铁沟钢结构及耐材更换施工方案编制：邙瑰平审核：审批：北京首建设备维修有限公司迁钢检修部2013-1-23constructionmeasure1)duringtherainyseasontopreventsettlementofformworkscaffoldingduringconstruction,loose;concretepouringrain,slumpinmoderationdecreases,newpouringconcretetocoverwithplasticsheeting;heavyrai
2、nopenedpouringconcreteisstrictlyprohibited.2)keepdrainagefacilitiesclearofaggregatesandconstructionsite.Yuqiantodigdrainageditches,equippedwithasufficientnumberofsubmersiblepumpsandwaterpumpsformaintenance,inspection,maintenance,ensuretheequipmentingoodcondition.3)cementtemporaryfacilitiessuchaslibr
3、ary,materialshouldbehigherthantheoutsideelevationandfeaturewaterproofanddrainagefacilities.4)meansoftransportandsecurityandtoskidtherainequipment.7.6concreteconstructionqualitycontrol(1)rawmaterialsandtiethandesigngravelmaterialmustforchemicalnatureandthephysicalpropertiesexperiment,meetrequirements
4、rearcanusing,cementshippedsiteHou,onitsvolumesecurity,andconsistency,finedegrees,dodirectedanalysis,theindexqualifiedrearcanusing;onmixingandconservationwater,withtestmortarstrengthofmethodfortest;aggregatebyfineOrthopedic,andintheaggregate,pointswarehousestacked,regularlydetectionitscontainingwater
5、rate.sandfinedegreesmoduleregularlycheck,ifoverprovidesofmodule0.2Shi,Arerequiredtoadjustthemixproportionofconcrete.concretemixdesign,accordingtomaterialcharacteristicsandconstructionofconcreterequirements,accordingtodesignrequirementstodeterminethestrengthanddurabilityofcement,water/cementratioisde
6、termined,inaccordancewithconstructionrequirements,workability,slump,sandcoarseaggregatesizedeterminestherate,waterconsumption,andthenusingabsolutevolumemethodtocalculatethequantityofsandconstructionmixtureratio.Concreteslumpcontrolinthecontextofdesigndrawings,accordingtotheminimumvalueindifferentpar
7、ts.Accordingtothedifferentparts,withl~4-gradedconcrete,eachpouringasame-gradeconcrete,accordingtothenormativesample,asetofthreespecimens,instandardcuringcondition,measuringthecompressivestrengthof7d,1
