中英文資料翻譯Paverscreed1.1FunctionFulfilledbytheScreedThescreed,theroadpaver‘sworkingtool,fulfilsthefunctionofuniformlycompactingthepavingmaterialacrosstheentirepavewidthandproducingaclose-texturedandlevelsurface.Thescreed‘scompactingsystemsshallpre-compactthemixtothegreatestpossibleextent.Thisistominimizetheinfluenceoflayerthicknessupontheamountofsubsequentcompactionbyrollingwhenbringingaboutthepavement’sfinaldensity.Forpre-compaction,differentcompactingsystemsareavailable:T=Tamper(aneccentricshaftcausesthetamperbartomoveupanddown)V=Vibrators(vibrationsaregeneratedbyaneccentricshaftactingonthescreedplatesatrightanglestothedirectionofmotion)P=PressureBar(s)(thepressurebar(s)arehydraulicallypressedontothemixatafrequencyof68Hz(approx.)andamaximumpressureof130bar)P1=Screedequippedwith1PressureBarP2=Screedequippedwith2PressureBar1.2ExtendingScreedsandBolt-onExtensionsForallVOGELEscreeds,bolt-onextensionsareavailable.TheVOGELEsystemofbolt-onextensionsallowstoeasilyandsturdilybuildupscreedstoanypavewidthdesired.Evenwhenpavinginlargewidths,VOGELEscreedsworkwithhighestprecisionandachievesuperbdegreesofuniformdensityrightuptothepavementedges.Whenfittingbolt-onextensions,caremustbetakentoensurethatthebottomedgeofthescreedplateisflushwiththeadjacentunits,otherwiseastepmaybeproducedinthepavementorthescreedplanninganglemaychange.Duringthepavingprocess,thiscanhaveanegativeeffectonpre-compaction,surfacestructureandfloatingbehaviourofthescreed.1.3Set-UpoftheExtendingScreed1.Positionbothextendingunitsinplacesothatthescreedplateofthebasicunitandthescreedplatesoftheextendingunitsareroughlylevel.2.Slackenthechainsconnectingthespindlesontheextendingunitsothateachspindlecanbeadjustedindependently.3.Carefullylowerthescreedontotheextendingunits.Timbershouldbeplacedunderthemiddleofthetwoextendingunits.4.Nowadjustthescreedplanningangleviathetowpointramssothatthescreedplaterestsonthetimber.5.Removethelockingscrewfromthethreadedbushonallspindles.6.Adjustallthreadedbushes.7.Refitthelockingscrews.8.Raisethescreedandsecureitsothatitcannotsink.9.Layaruleralongtheinnerandouterspindlepairsandthenadjusttheheightoftheextendingunitviathefrontandrearspindleswiththeaidofaspecialwrench,sothatthescreedplateofthebasicunitislevelwiththetrailingedgeoftheextendingunit.Nowadjusttheplanningangleoftheextendingunitviathefrontspindle.10.Reconnectthespindlepairswiththechains.11.Raisetheframeoftheextendingunitbyapprox.4mmsothatitroughlycorrespondstotheplanningangleofthescreed.12.Duringthefirston-sitejob,theheightoftheextendingunitsmustbecorrecteduntilalongitudinalstepisnolongervisible.1.4Fixed-WidthScreeds1.4.1CompactingSystemsInstalledinFixed-WidthScreedsTV=TamperandVibratorsInstalledin:-SB250-SB300Recommendedfor:-Allconventionalmixes.-Materialswhichareeasytocompactorthinnerpavementlayers.-Jobswherepavingcanbedoneinalargelyconstantwidth.Largeradii.TP2=Tamperand2PressureBarsInstalledin:-SB250(andHydraulicBolt-onExtensions)-SB300(andHydraulicBolt-onExtensions)Recommendedfor:-Allconventionalmixes.-AscreedinTP2versionachievesahighpre-compactionevenofthickpavementlayers.-Mixeswhicharedifficulttocompactonaccountoftheirgrainshapeandconsistency.-Jobswherepavingcanbedoneinalargelyconstantwidth.-Largeradii.-Lesseffortrequiredforsubsequentcompactionbyrolling.TP1=Tamperand1PressureBarInstalledin:-SB250(andHydraulicBolt-onExtensions)-SB300(andHydraulicBolt-onExtensions)Recommendedfor:-Allconventionalmixes.-Pre-compactionbyascreedinTP1versionishigherthanbyaTVscreed,butlowerthanbyascreedinTP2version.-Jobswherepavingcanbedoneinalargelyconstantwidth.-Largeradii.-Lesseffortrequiredforsubsequentcompactionbyrolling.TVP2=Tamper,Vibratorsand2PressureBarsInstalledin:-SB250-SB300-SB250BRecommendedfor:-Jobswherepavingcanbedoneinalargelyconstantpavewidth.-Largeradii.-SB250,SB300:Allconventionalmixes.-SB250B:ForpavingPCC?asthistypeofjobdoesnotincludesubsequentcompactionbyrolling.1.4.2Fixed-WidthScreedsandBolt-onExtensionsAsageneralrule,bolt-onextensionsshouldbefittedsymmetricallyonbothsidesofthescreed,whereverpossible.TheadvantageofaFixed-WidthScreedisadeeperscreedplateof500mmcomparedtoascreedplateof250mmfoundonExtendingScreeds.Thishasapositiveeffectuponthescreed‘sfloatingbehaviour.Moreover,theleadingedgeoftheFixed-WidthScreedformsasinglelineovertheentirepavewidthanddifferentplanninganglesdonotleavemarksinthepavement.Fixed-WidthScreedsarecapableofhandlingconsiderablylargerpavewidthsthanExtendingScreeds,albeitwithrestrictionsasregardsthescreed‘svariability.Asaresult,Fixed-WidthScreedsareparticularlysuitedtopavinglongsectionswithalarge,unchangingpavewidth.1.4.3BuildingUpaFixed-WidthScreedwithBolt-onExtensionsBolt-onextensionsarefittedtoenlargethescreed’swidth.Thetrailingedgesofthescreedplatesshallbeflushacrosstheentirepavewidth.Theleadingedgesofthescreedplatesshouldbesethighertowardstheoutsidebyroughly0.5mm.Inordertopreventthebolt-onextensionsfrombendingtowardstherearasaresultofthepressureexertedbythemix,horizontalbracesmustbefitted.Horizontalbracesaretobefittedinsuchawaythatthetrailingedgesofthescreedplatesareflush.Tocompensatetheupliftattheouteredgesofthescreed,thereshouldbealightsagofthescreedwhenraised.Themagnitudeofthissagdependsonthepavewidth.Thesagcanbeadjustedbywayofthebracesoverthescreed’sbasicunit.1.5Set-UpofTamperThetampershallbesettoanidenticalstrokelengthacrosstheentirepavewidth.Thesettingcanbechangedbysimplyturningtheeccentricbushontheshaftdrivingthetamperbar.Thedrivingshaftisaccessiblefrombehind,sothatthiscaneasilybedonebetweenjobsitesections.Adjustingthelowerreversalpointofthetamperbar,however,takesmoretime.First,thetampershieldsneeddemounting.Thenremovethescrewsonallshaftbrackets.Afterlooseningthelockingnut(2),thetamperbarcanbeadjustedviabolt(1).Theheighttobesetdependsonthetamperstrokeselected.1.6Set-UpofTamperShieldThetamper(3)mustbesetsothatitrestsonthewearstrip(1)acrossthefullwidth.Thenadjustthespringsteelbar(2)onthetampershieldbymeansofscrew(4)fromtherearofthescreeduntilagapof0.5-1mmisobtainedbetweentamperbarandthespringsteelbar.Releasescrews(6)andfitvarioussmallshims(5)toalignthetampershield.Withthetampershieldcorrectlyaligned,thespringsteelbar(2)isatleastparallelwiththetamperorpreferablyinclinedslightlytothefront.Checktheclearancebetweentamperandspringsteelbarandcorrect,ifnecessary.Tip!Atastrokelengthof2mm,thetamperbarshouldbeflushwiththescreedplate(checkwithyourhand).1.7Set-UpofPressureBar(s)1.Unscrewthenut(2)withanti-twistdevice(3)onthehydraulicram(1)forthepressurebar.2.Turnthehydraulicram(1)toadjusttheheightofthepressurebar.Theclearance(7)betweenpressurebarandbottomedgeofthescreedplateshouldbeatleast4mm.3.Checkthatthehydraulicramforthepressurebarmakescontactwithmetalplate(5)whenretracted.4.Setpre-tensionofspring(6)to5.5mmvianut(4)toyieldadistance(8)of59.5mm.5.Resecurethehydraulicram(3)forthepressurebar.1.8BevelIronsBevelironsshapeandcompacttheedgesofthepavement.Theyareavailablewithabeveledgeof45°and60°.Theirsizedependsonthethicknessofthelayertobepaved.Aheatingrodcanbeinstalledasanoptiontoimprovetheslidingpropertiesofthebeveliron.1.9FunctionCheckofScreedHeatingAllscreedcomponentsincontactwiththehotmixshouldbeheatedtoapprox.90°Cbeforestartingwork.Itisrecommendedtoprotectthescreedagainstexcessivelossofheattothesurroundingssothattheheatingpowercanbeutilizedeffectively,forinstancebyputtingdownthescreed,preferablyonhotmix.Asphaltmaysticktothetamperbar,screedplatesorpressurebar(s)ifthescreedtemperatureistoolow.Thiscanleadtotheformationofstripsandanirregularsurfacetexture.Thefloatingbehaviourofthescreedmayvarybeforeitreachesitsoperatingtemperature,withtheresultthatlayerthicknessmayalsovaryanddeviatefromthedesiredone.Forthe“dash2“machines,amonitoringunitforscreedheatingisavailableasanoptionalextra.Thisfeaturemonitorseachsingleheatingrodforproperfunctionandindicatesanyfaultwithoutdelay.Shouldoneofthegreenindicatorlightsextinguishoveraprolongedperiodoftime,thenthereasonmaybe:nPoorinsulationnAsymmetricalpowerconsumptionnGeneratortemperaturetoohighTip!Directlyafterswitchingonscreedheating,correctoperationoftheheatingrodscanbecheckedbycautiouslytouchingthetamperbar,screedplatesandpressurebar(s).Advantage：Afailureofheatingrodsisdetectedimmediately.Newpartscanbeprocuredwithoutdelaytopromptlyrestorethescreed‘sfullfunctionality.ParametersInfluencingthePavingProcess2.1PavingMaterialMixTemperature-Themixtemperatureshouldbeconstantandhighenoughtopreventthemixfromcoolingbeforeitislaid.-Pavingmaterialthathascooledishardertocompact.-Theloadbearingcapacityofthemix,too,dependsonitstemperature.-Feedofthepaverwithmixshallbeplannedwithaviewtoanoptimaltemperatureforpaving.GrainSize-Themaximumgrainsizeshouldnotexceed1/3ofthelayerthickness.MixComposition-Thecompositionofthemixshouldremainconstantthroughoutthepavingjob.PropertiesoftheMix-Propertiesofthemixhaveaninfluenceuponthescreed’sfloatingbehaviour.-Pavingmaterialswithahighbearingcapacityconfrontthescreedwithahigherresistancethanmaterialsofpoorbearingcapacity.-Conveyingandcompactingsystemscanbesetupinanoptimalmannertomatchthetypeofmix.2.2PavingParametersLayerThickness-Thelargerthelayerthickness,thelargerthescreedplaningangle.PaveWidth-Thefloatingbehaviourofthescreedchangesinaccordancewiththepavewidth.PaverStop-Thelongerthepaverstop,thegreatertheirregularitytobeexpectedinalongitudinaldirection.AmbientConditions-Ambientconditions,suchastemperature,caninfluencethemixandchangethefloatingbehaviourofthescreed.2.3RelationshipBetweenTamperSpeedandPaveSpeedWhilepaving,whenscreedtowpointramsarenotchangedinposition,anequilibriumofforcescomprisingpavespeed,screedweightandtamperspeedisestablished.Ifanyoneoftheseparameterschanges,thisimmediatelyaffectsthescreed‘sfloatingbehaviour.Tamperspeedandpavespeedareverystronglydependentononeanother.Anychangeinpavespeedwithoutchangingthetamperspeedandpositionofthescreedtowpointramswillaffectpre-compactionofthemix.Ifthepavespeedisincreasedwithoutsimultaneouslyincreasingthetamperspeed,theloadbearingcapacityofthemixwillbereducedandthescreedlayathinnerlayeratasteeperplaningangle.PavingwithAutomatedGradeandSlopeControlIfAutomatedGradeandSlopeControlisusedforpaving,thedesiredelevationofthescreedcanbemaintainedbyincreasingtheplanningangle,butpre-compactionwillnotremainconstant.AfterCompactionbyRollingWhentherollerpassesoverthemix,theamountofextracompactionwilldifferonaccountofvaryingpre-compactionandresultinirregularitiesinthesurface.2.4FunctionsoftheHydraulicRamsforRaising/LoweringtheScreedScreedFloatNormally,mixispavedwiththescreedinScreedFloatmode.Inotherwords,thepiston-sideandrod-sidevalvesoperatingthehydraulicramsareopenforfreeupanddownmovement.ScreedAssistIfthebearingcapacityofthemixispoor,thescreedwillnotreachthedesiredelevationevenwhensettoalargeplaningangle.TheScreedAssistfunctionallowspressuretobeappliedseparatelytotherightandleft-handhydraulicramsfrombelow.Thispressurecounteractsthescreedweightandallowsittofloatupinaccordancewiththemagnitudeofthepressure.ScreedFreezeTheScreedFreezefunctionisactivatedautomaticallyfollowingapaverstopinScreedFloatmode.Thevalvesactivatingthehydraulicramsforraising/loweringthescreedareclosedonboththepistonandtherodsides,thusbrieflysuspendingtheScreedFloatmodeinordertopreventirregularitiesinthepavementwhenresumingpaving.攤鋪機的熨平板1.1熨平板履行的功能熨平板是道路攤鋪機的工作工具，能達到均勻密實整個攤鋪寬度的攤鋪材料和生產質感密切而且水平的表面的功能。熨平板的壓縮系統，緊湊的組合到最大限度。這是為了盡量減少當達到路面的最終密度時滾動對后續壓實層厚度的影響。對于預壓實，有不同的壓縮系統可供選擇：T=振搗夯錘（偏心軸使振搗夯錘向上和向下移動）

V=振動器（振動產生的偏心作用在熨平板直角軸的運動方向）

P=壓力桿（壓力桿是液壓壓力在組合頻率68赫茲（約）和130桿的最大壓力）

P1=熨平配備1壓桿

P2=熨平配備2壓桿1.2伸縮式熨平板和螺栓擴展裝置對于所有的福格勒熨平板，都可以使用螺栓擴展裝置。福格勒熨平板的螺栓擴展系統可以很容易的得到任何所需寬度的熨平板。即使在一個大的寬度鋪路時，福格勒熨平板的工作精度仍然最高，而且可以使路面邊緣的均勻密度達到精湛的程度，當安裝螺栓擴展裝置時，必須采取護理措施，以確保熨平板的底邊是與相鄰的部位平齊，否則一個小步驟都可能使攤鋪路面或熨平規劃角度發生改變。在攤鋪機的鋪設過程中，對預壓實,表面結構和熨平板的浮動行為可以有一個消極的影響。1.3向上延伸式熨平板擴展單元基本單元擴展單元基本單元Ⅰ.擴大延伸部位，使熨平板的基本部位和熨平板的延伸部位大致水平。

Ⅱ.放松鏈來連接擴展部位的主軸，使每個主軸都可以獨立調整。

Ⅲ.仔細降低熨平板的延伸部位。振搗夯錘應安裝在兩個延長部位中間。

Ⅳ.通過撞擊的牽引點來調整熨平板的熨平刨角，使熨平板依賴于振搗夯錘。Ⅴ.從所有主軸的螺紋襯套中調整鎖緊螺釘。

Ⅵ.調整所有的螺紋軸套。

Ⅶ.重新裝上鎖緊螺釘。

Ⅷ.提高找平層并且固定它，以便它不能下沉。

Ⅸ.奠定了一個沿主軸內部和外部的統治者，然后借助一個特殊的扳手，通過主軸的前部和后部調整延伸部位的高度，以便熨平板的基本部位與擴展部位后緣是水平的。然后通過主軸前端調整延伸部位的刨角。

Ⅹ.連接主軸和鏈。

Ⅺ.提高延伸部位的結構約4毫米，使它與熨平板的刨角大致相符。

Ⅻ.在第一次現場工作中，必須糾??正延伸部位的高度直到縱向的平臺不再可見。

1.4寬度固定的熨平板1.4.1安裝有壓縮系統的固定寬度的熨平板TV=振搗夯錘和振動器安裝在：TV=振搗夯錘和振動器安裝在：-SB250-SB300推薦指數：-所有傳統的混合物。-材料易于形成緊湊型或較薄的路面層。-攤鋪工作中在很大程度上是固定寬度的。-大半徑TP2=振搗夯錘和2個壓力桿TP2=振搗夯錘和2個壓力桿安裝在：-SB250（和液壓螺栓擴展）-SB300（和液壓螺栓擴展）推薦指數：-所有傳統的混合物。-熨平板在TP2的形式下能實現高的預壓實，甚至是厚的路面層。-紋理形狀和強度難以壓縮的混合料。-攤鋪工作中在很大程度上是固定寬的。-大半徑-后續的滾動壓實需要較少的努力。TP1=振搗夯錘和1個壓力桿TP1=振搗夯錘和1個壓力桿安裝在：-SB250（和液壓螺栓擴展）-SB300（和液壓螺栓擴展）推薦指數：-所有傳統的混合物。-熨平板在TP1形式下預壓實高于TV形式熨平板，但低于TP2形式熨平板。-攤鋪工作中在很大程度上是固定寬的。-大半徑-后續的滾動壓實需要較少的努力。TVP2=振動器，TVP2=振動器，振搗夯錘和2個壓力桿安裝在：-SB250-SB300-SB250B推薦指數-攤鋪工作中在很大程度上是固定寬度的。-大半徑-SB250,SB300:所有傳統的混合物。-SB250B:用于攤鋪PCC，這種工作的類型不包括隨后的滾動壓實。1.4.2固定寬度的熨平板和擴展螺栓作為一般規則，在擴展的螺栓兩側應盡可能裝有對稱熨平板。一個固定寬度的熨平板的優勢是與250mm的熨平板相比，500mm熨平板多了一個延伸熨平板。這對熨平板的浮動行為有積極的作用。此外，固定寬度熨平的領先優勢是形成了整個攤鋪寬度超過一行和不同的刨角不離開路面的標志。固定寬度的熨平板對于相當大的攤鋪寬度處理能力比延伸熨平板強，雖然它有限制熨平板的變異。因此，固定寬度的熨平板特別適合攤鋪一個大的、長的路段，且保持不變的攤鋪寬度。

1.4.3建立固定寬度的熨平板和螺栓的擴展螺栓上的擴展配備擴大熨平板的寬度。熨平板的后緣應和整個攤鋪寬度平齊。熨平板的前緣應朝外面高出大約0.5毫米。為了防止施加混合壓力，螺栓向后方彎曲時擴展，且必須安裝水平支撐。水平支撐以和熨平板后緣平齊的方式安裝。為了彌補熨平板的外緣隆起，在熨平板提升時應該有一個輕微的凹陷。這個凹陷的大小取決于攤鋪寬度。凹陷可以以熨平板的基本裝置伸張的方式來調整。1.5振搗夯錘的設置振搗夯錘應設置一個與整個攤鋪寬度相同的行程長度。只需轉動在振搗夯錘驅動軸上的偏心軸瓦就可以改變這個設置。傳動軸是從后面接近，以便可以很容易地完成工作現場之間的作業。但是，調整振搗夯錘的較低的逆轉點需要更多的時間。首先，振搗夯錘的外殼需要拆卸。然后移動所有軸支架上的螺絲。在松開鎖緊螺母（2）后，振搗夯錘的桿可以通過螺栓（1）來調整。高度根據振搗夯錘沖程的選擇來設置的。1.6振搗夯錘外殼的設置振搗夯錘（3）必須被設置，以便它在橫跨整個寬度時依賴于消耗沉淀槽（1）。然后通過熨平板后方的螺絲（4）來調整振搗夯錘上的彈簧鋼條（2），直到振搗夯錘的桿和彈簧鋼條之間的縫隙為0.5-1毫米。松開螺絲（6），安裝各種小墊??片（5）以調準振搗夯錘。隨著振搗夯錘的調準，彈簧鋼條（2）至少平行于振搗夯錘或最好向前稍微傾斜。如果必要的話，檢查振搗夯錘和彈簧鋼條之間的間隙。注意！