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20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)21[]2008-05-27[],,。11。13。65389。A1、A2、A3、B1、B2、B3、C1、C2、D1、D210。6000,(),。:→300mm→100mmC15→200mmC30(),10@200,→。:、;,,:C15。2,1。、、。2。3(1):。,(,215008)[],,,,(ACI)(CSA),FF/FL,,,、。[];;;[]TU741.1[]B[]1005-6270(2009)01-0045-04Super-FlatConcreteFloorConstructionTechnologyandQualityStandardZHANGJieLIJian-hua(SuzhouNo.2ConstructionGroupCo.,Ltd,SuzhouJiangsu215008China)Abstract:Aslasertechnologyandelectronictechnologydevelopmentaswellasmodernindustrialfloorre-quirement,since1980s,theinternationalprojecthasstartedusingoflaserfloatingmachinetoexecuteconcretefloorconstruction.Inthemiddleof1990s,ourcountryalsoimportedthistechnology.Inaddition,weimportedrelevantconcretefloorsmoothnessstandardfromACIandCSA,namelyFF/FLstandard.Wehaverealizedau-tomationofconcretefloorprecisefloating.Asaresult,concretegroundslabconstructionqualitycanbeas-sured.Thetechnologyhasbeenwidelyusedforlogisticscenterandelectronicplantandsoon.Keywords:super-flatconcretefloor;laserscreed;levelcontrol;construction4520091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)3FF/FL2;,(),;,。(2):。,。(3):,,,。(4):(6.1m),,、、。(5):,、,。(6):1),5/m3。2),2/3,,,;,1/3,,;,,,;(7):1):,,;,,。,,;。2):、3。3):,3h~4h,,,(),,。3.5m~5.5m。,。。4):8h,,,,500kg;;,,,,。5):1h,,,,,。(8):,7d;;,,,;,1.2MPa,。(9):7m;2mm~3mm,25mm;,。(10):1):F-meter。2):,。3)、,。4(ACI)(CSA)A23.1,FF45/FL35。4.1F,3m/±3mm,2m/±4mm,,,,,,F。F(AmericanConcreteInstitute#117)(CanadianStandardAssociation#A23.1)。F:FF,FL,,,FF,FL。F。F,F20F102,F401/2。4620091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)74FloorPromodel、,F≥100、FL≥100();FF≥50、FL≥50;FF≥35、FL≥30;FF≥25、FL≥20。、、FF≥50,:,FF20/FL15。4.2FF/FLMODEL9905F-MeterRFloorPromodel、,ACI—F,,。F———:(1),,12,,,。(2)30cm(12),3m(10),,,,。《ANSI/ASTME1155Ma-1996F-()》。,,。4.3FF/FLF-,,:FF253m±6mmFF503m±3mm5NO.TESTLENGTH(ft)FlatnessFFLevelnessFL(1)3353.154.6(2)3263.252(3)3350.751.8(4)3358.353.5(5)32.565.155.1(6)3355.650.4(7)32.551.347.9(8)32.558.746.1(9)31.566.058(10)32.561.763.2(11)3266.857.8(12)31.557.555.5(13)3260.055.2(14)3355.145.7(15)3353.545.2(16)32.558.051.1(17)3357.449.5AVER32.5ft58.352.56FF/FL4720091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)20091(125)3-Φ60×3,8000mm,:V=10kNN=20kN。a、b、c、d4,λ1-△:3。3,ab,cd,ab,cd。a,,50,,;b、cd,,40,,30,。2、。:1)。2),70~80。3),,,≤40,。[1]GB50017-2003[S].,2003.[2],,.[J].,2006().[3],.-[M].:,2004.[4].[M].:,2002.FF1003m±1.5mm4.4(1)()FF58.30/FL52.50,。(2)(),237,FF58.05/FL41.25,,。5,、,,。,,、、、。,,,。,。(ACI)(CSA)FF/FL,。,。,,。[1]ANSI/ASTME1155Ma-1996F-()[S].(ACI)(CSA),1996.8(38)≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤48
本文标题:超平工业地坪施工技术及质量标准
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