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ID:28068093
大小:308.18 KB
页数:184页
时间:2018-12-08
《建筑施工起重机械安全检测规程(1)》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、¸£½¨Ê¡¹¤³Ì½¨ÉèµØ·½±ê×¼DB¹¤³Ì½¨ÉèµØ·½±ê×¼±àºÅ£ºDBJ/T13-67-2010ס·¿³ÇÏ罨É貿±¸°¸ºÅ£ºJ11699-2010½¨ÖþÊ©¹¤ÆðÖØ»úе°²È«¼ì²â¹æ³ÌTestspecificationforsafetyofbuildingconstructionheavy-liftingmachinery2010-09-28·¢²¼2010-11-15ʵʩ¸£½¨Ê¡×¡·¿ºÍ³ÇÏ罨ÉèÌü·¢²¼ready-mixedconcretemanufacturerstosignquali
2、tyguarantees.(3)usinghotwatermix,hotwatertemperaturedoesnotexceed60ctoensureconcretemachineuptoatemperatureof15~20℃,castingtemperatureisgreaterthan5degreescentigrade.(4)strictcontrolofmixingconcreteadmixtureadmixtureofcementandconcrete,mixingtimestirringatroomtemperaturetimeof1.5times.2tr
3、ansportready-mixedconcretetrucks,concretemustbecoatedintransportinsulationtopreventheatloss.Toshortenthetransporttimetoensureconcretepouringtemperaturenotlowerthan10degreesCelsius.3,thepouringofconcrete(1)beforeconcretepouring,clearingsnowandiceonthetemplateandsteelanddirt.(2)usingconcret
4、epumps(HBT-80)fortheverticaltransportation,fire-retardantthermalinsulationforconcretepumppipewrap,topreventheatloss,toensurethattheconcreteintothemoldtemperatureofnotlessthan5degreescentigrade.(3)concretenotsubjectedtoimpactloadingnotfullycooled.4,concretecuringconcretecuring:concretecuri
5、ngcomprehensivethermalstoragemethodisused.(1)wallofconcretecuring:releasetimeafterflame-resistantquiltcoverandpressupordowntopreventwind,accordingtothethermalcalculationtodeterminethethicknessoftheinsulationis.(2)curingconcreteroof:roofaftertheconcretehasbeenpoured,thesurfacecoveredwithre
6、ady-mixedconcretemanufacturerstosignqualityguarantees.(3)usinghotwatermix,hotwatertemperaturedoesnotexceed60ctoensureconcretemachineuptoatemperatureof15~20℃,castingtemperatureisgreaterthan5degreescentigrade.(4)strictcontrolofmixingconcreteadmixtureadmixtureofcementandconcrete,mixingtimest
7、irringatroomtemperaturetimeof1.5times.2transportready-mixedconcretetrucks,concretemustbecoatedintransportinsulationtopreventheatloss.Toshortenthetransporttimetoensureconcretepouringtemperaturenotlowerthan10degreesCelsius.3,thepouringofconcrete(1)beforeconcretepourin
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