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水泥胶砂流动度测定仪,NLD-3型水泥胶砂流动度测定仪

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2018-09-15 10:00 1467阅读次数

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水泥胶砂流动度测定仪,NLD-3型水泥胶砂流动度测定仪一.概述:NLD-3型水泥胶砂流动度测定仪由ZG建筑材料科学研究院与我公司合作开发的,ZL号:03208785.3,用于2005年发布的新标准GB/T2419-2005《水泥胶砂流动度测定方法》的流动度试验,是该标准**指定用仪器。二.主要参数振动部分总重量:4.35kg±0.15kg振动落距:10mm±0.2mm振动频率:1Hz振动次数:25次桌面参数:材料:铸钢,工作面镀硬铬直径:φ300mm+1mm三.安装调试仪器必须可靠接地。仪器用膨胀螺栓固定在基座上。仪器基座由混凝土浇筑而成(或砖混基础),底面尺寸约为400mm×400mm,高约690mm。在基座和仪器机架之间宜填垫圈(见图八.基础安装图),可通过调整垫圈高度调节桌面水平。仪器安装后,其桌面沿彼此成直角的两个直径方向测量时均应成水平。跳桌安装好后,采用流动度标准样(JBW01-1-1)进行检定,测得的流动度值如与给定的标样流动度值相差在规定范围内,则该跳桌的安装及使用性能合格。四.水泥胶砂流动度测定仪,NLD-3型水泥胶砂流动度测定仪使用方法试样的制作与填装方法按GB2419-2005和GB17671-1999的有关规定,也可参照本说明书附录。1、使用前,请用检规检查落距。2、将插头接入计数器后对应孔内,将计数器接通电源。3、如跳桌在24小时内未被使用,先空跳一个周期25次。五.维护与保养使用完毕后,应擦净仪器,清除仪器周围残留胶砂,用轻油稍稍润滑推杆、桌面和凸轮表面。长期不用,仪器应防尘保护,控制器放置在包装盒内。如仪器不计数,请检查接近开关是否松动、与凸轮间隙是否为1mm~2mm,如有偏离或松动,请调整间隙后紧固。六.结构简图水泥胶砂流动度测定仪结构简图1.机架2.接近开关3.电动机4.凸轮5.轴承6.推杆7.圆盘桌面8.捣棒9.模套10.截锥圆模11.检规12.控制器七.水泥胶砂流动度测定仪,NLD-3型水泥胶砂流动度测定仪电气原理图八.基础安装附录胶砂的制备按GB/T17671-1999有关规定(水泥:标准砂:水=1:3:0.5)进行。将拌好的水泥胶砂分两层迅速装入模内,**层装至截锥圆模高约三分之二处,用小刀在相互垂直两个方向划5次,再用捣棒自边缘至ZX均匀捣压15次。接着装第二层胶砂,装至高出截锥圆模约20mm,同样用小刀在相互垂直两个方向划5次,再用捣棒自边缘至ZX均匀捣压10次。捣压力量应恰好足以使胶砂充满截锥圆模。捣压深度,**层捣至胶砂高度的二分至一,第二层捣至不超过已捣实的底层表面。捣棒捣压顺序按GB/T2419-2005《水泥胶砂流动度测定方法》中6.3条的规定。捣压完毕,取下模套,将小刀倾斜,从中间向边缘分两次以近水平的角度抹去高出截锥圆模的胶砂,并擦去落在桌面上的胶砂。将截锥圆模垂直向上轻轻提起移去。立即按计数器的“启动”按钮,开动跳桌,完成一个周期25次跳动。跳动完毕,用300mm量程的卡尺测量胶砂底面互相垂直的两个方向扩展直径,计算平均值,取整数,用mm单位表示。该平均值即为水泥胶砂流动度。从胶砂加水开始到直径测量结束,试验应在6min内完成。水泥胶砂流动度测定仪,NLD-3型水泥胶砂流动度测定仪水泥胶砂流动度测定方法适用于火山灰质硅酸盐水泥、复合硅酸盐水泥和掺有火山灰质混合材料的普通硅酸盐水泥、矿渣硅酸盐水泥。仪器:胶砂搅拌机:符合GB177有关规定水泥胶砂流动度测定仪:简称跳桌。试模:用金属材料制成,由截锥圆模和模套组成。截锥圆模内壁应光滑,尺寸为:高度60±0.5mm,上口内径:70±0.5mm,下口内径:100±0.5mm,下口外径:120mm。模磁与截锥圆模配合使用。捣棒:用金属材料制成,直径为20±0.5mm,长度约200mm。捣棒底面与侧面成直角,其下部光滑,上部手柄滚花。卡尺:量程为200mm,分度值不大于0.5mm小刀:刀口平直,长度大于80mm。水泥胶砂流动度测定方法T0506-94 需备置仪器                                      品种规格数量单价备注行星式胶砂搅拌机1台2200 JJ-5电动跳桌1台1200 NLD-3卡尺200mm1把180 小刀1把15 新ISO标准砂1包120 Cementmortarfluidityanalyzer,theNLD,-3cementmortarfluidityTesterI.Overview:NLD,-3cementmortarfluiditytesterandmycompanybytheChinaBuildingMaterialsAcademy,developedincooperationwiththepatentnumber:03208785.3,for2005releasednewstandardsGB/T2419-2005cementThesandflowdeterminationmethod"flowtest,thestandardonlyspecifiestheinstrument.MainparametersVibrationpartofthetotalweight:4.35kg±0.15kgVibrationfalldistance:10mm±0.2mmVibrationfrequency:1HzVibration:25timesDesktopparameters:Material:caststeel,facehardchromeplatingDiameter:φ300mm+1mm(C)installationandcommissioningTheinstrumentmustbereliablegrounding.Instrumentwithexpansionboltsonthebase.Instrumentbasepouringconcrete(orbrickandconcretebase),basesizeofabout400mm×400mm,theheightofabout690mm.Betweenthebaseandinstrumentrack首ldfillthewasher(seeFigureeightbasicinstallationdiagram),thedesktoplevelbyadjustingthewasherheightadjustment.Instrumentsetup,desktopalongeachotheratrightanglestothedirectionofthetwodiametermeasurementsshallbehorizontal.Jumptablesinstalled,fluidityofstandardsamples(JBW01-1-1)test,themeasuredflowvaluegivenstandardflowvaluedifferencewithinprescribedlimits,thejumptableinstallationusingperformancequalified.4useOftestspecimensandfilledwiththerelevantprovisionsofGB2419-2005andGB17671-1999,canalsorefertotheAppendixofthismanual.1,priortouse,withacheckcompliancecheckoffthedistance.Correspondingholeintheplugaccesscounter,thecounterpower.3,suchasjumptableswithin24hoursnotinuse,thefirstemptyjumpacycle25times.V.CareandMaintenanceAfteruse,wipetheinstrument,removeresidualmortararoundtheinstrumentalittlelubricationputter,desktop,andthecamsurfacewithalightoil.Unusedforlongperiods,theinstrument首ldbedust-proofprotection,thecontrollerisplacedinthebox.Iftheinstrumentdoesnotcount,checktheproximityswitchisloose,withthecamgapis1mm~2mm,anydeviationorloose,adjustthegapaftertightening.Six.StructurediagramStructuraldiagramofcementmortarfluiditytesterRack2proximityswitches3.Motor4.Cambearing.PutterDiscDesktoppoundstick9diesets10.Coneroundmold11.Checkregulation12.ControllerElectricalschematicEight.ThebasisofinstallationAppendixPreparationofmortartheGB/T17671-1999relevantprovisions(cement:standardsand:water=1:3:0.5).Willbedividedintotwolevelsofthemarinatedcementmortarquicklyintothemold,mountedinthefirstlayertothetruncatedconeroundmoldabouttwo-thirdsoftheprogramfivetimeswithaknifeintwomutuallyperpendiculardirections,andthenthepoundstickedgetothecenterofuniformpoundpressure15times.Theninstalledasecondlayerofmortar,filledtoabout20mmhigherthanthetruncatedconicalrounddie,thesameprogramintheperpendicularinbothdirectionsforfivetimeswithaknife,thenpoundstickspoundpressureevenlyfromedgetocenter10.Traceamountofpressure首ldbejustenoughtomakethemortarfulloftruncatedconicalrounddie.Poundpressuredepthofthefirstlayerofpoundtoahighdegreeofmortartoasecondlayerofpoundtonomorethantampingtheunderlyingsurface.PoundsticktopoundthepressureoftheorderaccordingtoGB/T2419-2005"cementmortarfluidity"Determinationoftheprovisionsof6.3.Poundpressureiscompleted,removethediesets,knifetiltanglefromthemiddletotheedgepointsoftwonearlyleveltoerasethecircularmodeofthetruncatedconeabovethemortar,andwipethemortarfellonthedesktop.Truncatedconicalroundmoldverticallyupwardslightlyfiledtoremove.Immediatelycounterthe"Start"buttontostartthejumptable,completeacycleof25beating.Thebeatiscompleted,theexpansiondiameter300mmrangeofcalipertomeasuretwoperpendiculardirectionstotheundersideofthemortar,calculatetheaverage,rounded,expressedinmmunits.Theaverageisthefluidityofcement.Fromamortar,addwatertothediametermeasurementtotheendofthetest首ldbecompletedin6min.TestmethodforfluidityofcementmortarPozzolanacement,CompositePortlandcementandmixedwithPozzolanicmaterialsofordinaryportlandcement,slagcement.Instrument:Mortarmixer:GB177relevantprovisionsCementmortarfluiditytester:referredtoasthejumptable.Tryout:madeofmetalmaterial,composedofconeroundmoldanddiesets.Thetruncatedconeroundmoldinnerwall首ldbesmooth,dimensionsare:heightof60±0.5mm,catchyinnerdiameter:70±0.5mmportinternaldiameter:100±0.5mm,undertheportouterdiameter:120mm.Magneticmodeusedinconjunctionwiththeconeroundmold.Rammingrods:madeofmetalmaterialwithadiameterof20±0.5mm,alengthofabout200mm.Poundrodbottomandsideatrightanglestothelowerpartissmooth,theupperhandleisknurled.Caliper:Measuringrangefor200mm,thescalevalueisnotgreaterthan0.5mmKnife:knife-edgestraight,lengthgreaterthan80mm.DeterminationofthefluidityofcementT0506-94NeedtopreparetosettheinstrumentNumberofvarietiesandspecificationsPriceNotePlanetary-typemortarmixer1,2200JJ-5NLD,1200,electricjumptable1-3Caliper200mm1,180Knife1the15NewISOstandardsandofapackage120

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