What is the meaning of fair-faced concrete building?

Fair-facedconcrete,alsoknownasdecorativeconcrete,isnamedforitsdecorativeeffect.Itbelongstoone-timecastingmolding,withoutanyexternaldecoration,directlyadoptsthenaturalsurfaceeffectofcast-in-placeconcreteastheveneer.Therefore,unlikeordinaryconcrete,thesurfaceissmoothandsmooth,thecolorisuniform,theedgesandcornersaredistinct,nodamageandpollution,onlyonthesurface.Applyoneortwolayersoftransparentprotectiveagent,whichisverynaturalandsolemn. Clearwaterconcretehangingboard Fair-facedconcreteisthemostadvancedformofconcretematerial.Itshowsthemostessentialbeauty,reflectingthetasteof“facetoface”.Fair-facedconcretehasanunpretentious,naturalandcalmappearance.Theinnateweightandelegancearesomeofthemodernbuildingmaterialsthatcannotbeimitatedandcomparable. Clearwaterconcretedecoration Thesoftness,rigidity,warmthandindifferenceofthematerialitselfnotonlyaffectsthesensesandspiritoftheperson,butalsoexpressesthearchitecturalemotions.Therefore,thearchitectsbelievethatthisisanoblesimplicity,seeminglysimple,infact,moreartisticthanthegoldenglory. ParkZhiyuanconcreteimitationwood Moreandmorearchitectsintheworlduseclearwaterconcrete,suchasworld-classarchitectsBeiXingmingandTadaoAndo,​​whohaveusedalotofclearwaterconcreteintheirdesigns.Thisartofarchitectureisusedinworld-renownedartbuildingssuchastheCapeofSydney,theNationalTheatreofJapan,andthePrehistoricMuseumofParis.

How many of these new concretes have you seen?

Recycledconcreteistoreplacesomeunusedconcreteblocksontheconstructionsiteorduringtheconstructionprocesswithcrushingandcleaningsteps,andthenaccordingtoacertainproportionandlevel,someorevenreplacethenaturalaggregatessuchassandandgravel,thenaddcement,water,etc.Itcanbemadeintonewconcrete.Theemergenceofthisnewtypeofconcretenotonlysolvestheproblemofhowtoplacethewasteconcrete,butalsomakesfulluseofresourcerecyclingandsavescosts.Itisagoodmaterialforenergyconservationandenvironmentalprotection.Theemergenceofrecycledconcretenotonlycleanstheenvironmentbutalsosavesnaturalaggregateresources.Especiallyfromtherisingtrendofconstructionwasteinrecentyearsathomeandabroad,itcanbeseenthatthepromotionandapplicationofrecycledconcreteinthefutureisunstoppable. 02 Perviousconcrete-roadwaterterminator  Perviousconcreteisaporouslightweightconcretemadefromaggregate,cementandwater.Asanewenvironmentallyfriendlyandecologicalroadmaterial,thepermeable,permeableandlightweightofpermeableconcretealsomakesitanirreplaceableimportantroleinurbanrainwatermanagementandwaterpollutionpreventionandcontrol.Thepermeableconcretenotonlyutilizesitsownporosity,butalsorealizesfreefiltrationanddrainage,makingfulluseofthunderstormprecipitationandexertingthe"reservoirfunction"ofthepermeablesubgrade. 03 Fair-facedconcrete-concretecanalsoplayart  Anothernameforfair-facedconcreteisalsocalleddecorativeconcrete.Clearwaterconcretecanbesaidtobethemostadvancedformofconcretematerial.The“face-to-face”isthemostpertinentevaluationofit,andthiskindofinherentweightAndQingyaisalsoamodernbuildingmaterialcannotbeemulatedandcomparable.Moreandmoreworld-classarchitectsusealotofclearwaterconcreteintheirdesigns.Itisalsotheartisticcreationofthesemastersthatthebeautyoffair-facedconcreteisrevealed.Theconceptofgreenbuildingisdeeplyrootedinpeople'sminds.Theapplicationoffair-facedconcreteisextensive,anditsuniquecharmalsoattractsmorepeople.Ofcourse,asadecorativeconcrete,itsuseisnotlimitedtothis.Thefriendswhoopentheirbrainsareusingthisnewconcreteinsinks,flowerpots,concretesounds,routers,evencellphoneornaments,concreteglasses,etc.aspect. 04 Coloredconcrete-colorfulandcolorfulexperts  Comparedwiththeplainandsimpleconcreteoffair-facedconcrete,coloredconcreteismorelikealittlegirlinherearly20s.Itisuniquetolovedressingandsquirting.Thisfeaturealsomakescoloredconcretewidelyusedinpublicplacessuchasoutdoordecorationandscenicspotrenovation.Inaddition,coloredconcretecanmaketheconcretefloorpermanentlydisplayvariouscolors,patterns,textures,realisticallysimulatenaturalmaterialsandtextures,anddelineatevariouspatternsasdesired,andthelongerthenew,enablingpeopletoeasilyrealizethebuilding.Thethingsareinharmonywiththehumanenvironmentandthenaturalenvironment.Atpresent,coloredconcretehasbeenwidelyusedinmunicipalwalkways,gardenpaths,urbansquares,high-endresidentialquarters,parkinglots,businessofficebuildings,outdoorsportsvenues(badmintonvenues,basketballvenues,etc.).

There is a university question in the concrete. It must be used when collecting and building a house.

First,concreteclassification Concretecanbedividedintoapparentdensityaccordingtoapparentdensity:heavyconcrete,ordinaryconcreteandlightconcrete.Itcanalsobedividedaccordingtotheintensitylevel.Forexample,weoftenhearC20andC30asthestrengthgrade,C60belowiscalledordinaryconcrete,C60~C100ishigh-strengthconcrete,andC100oraboveiscalledsuper-high-strengthconcrete. ThefourteenstrengthgradescommonlyusedingeneralengineeringareC15,C20,C25,C30,C35,C40,C45,C50,C55,C60,C65,C70,C75andC80.Thestrengthlevelisdeterminedbythestandardvalueofthecubiccompressivestrength.Concretestrengthgradeisalsoanimportantbasisforconcretestructuredesign,constructionqualitycontrolandengineeringacceptance.Differentengineeringstructuresanddifferentpartsofthebuildingshouldrequiretheuseofconcreteofdifferentstrengthgrades.  1.Selectionrangeofconcretestrengthgrade Atpresent,inChina'sengineeringconstruction,thegeneralselectionofconcreteisasfollows:1C10~C15-forcushions,foundations,floorsandstructureswithlittleforce;2C20~C25-forbeams,slabs,columns,stairs,Ordinaryreinforcedconcretestructuresuchasrooftruss;3C25～C30——forlarge-spanstructures,structuresrequiringhighdurability,prefabricatedcomponents,etc.;4C40～C45—forprestressedreinforcedconcretemembers,cranebeamsandspecialstructures,etc.25to30layers;5C50toC60-forhigh-risebuildingsof30to60stories;6C60toC80-forhigh-risebuildings,usinghigh-performanceconcrete; Thestrengthgradeofconcreteisgradedaccordingtothestandardvalueofcubiccompressivestrength(inMPa)fcu.Thestandardvalueofthecompressivestrengthofthecubeisavalueintheoveralldistributionofthecubiccompressivestrength,andthestrengthislessthan5%ofthepercentageofthevalue,thatis,a95%guaranteerate.ConcretewithastrengthclassofC30means30MPa≤fcu<35MPa.Generally,themainconcreteusedinruralself-builthousesisC15~C30.  Second,theconcretemixratio Theconcretemixratioreferstotheproportionalrelationshipbetweenthevariousconstituentmaterials(cement,water,sand,stone)inconcrete.Therearetwowaystoexpress:oneistheamountofvariousmaterialsin1cubicmeterofconcrete,suchas300kgofcement,180kgofwater,690kgofsand,and1,260kgofstone;theotheristheuseofcementandvariousmaterialsperunitmass.Theratiooftheamountofuseandthewater-cementratioofconcreteareshown,forexample,thepreviousexamplecanbewrittenas:C:S:G=1:2.3:4.2,W/C=0.6.  Third,theactualconstructionoftheconcretelabelselection Theinfluenceoftheconcretemarkingonthecolumnandtheshearwall(axialpressureratiocontrol):increasingthenumbercansignificantlyreducethesizeofthecolumnwallandincreasetheactualutilizationrateofthebuilding.Theinfluenceoftheconcretemarkingonthebeam:undernormalcircumstances,ithasalmostnoinfluenceonthebearingcapacityofthebeam,sotheinfluenceonthesectionandreinforcementofthebeamissmall,andhighmarkingisnotsuitable.

A brief discussion on the test method of concrete impermeability

1Concreteresistancetestmethod 1.1Permeabilitymethod Accordingtothemeasurementofthemediumflowingthroughthesample,thepressureinsidethecontainerischanged,thepressuredifferencebetweenthetwoendsofthesampleismaintained,andtheamountofthemediumflowingthroughthepredeterminedtimeismeasuredtodeterminetheimpermeabilityoftheconcretetestpiece. Thesteadyflowmethodisoneofthecommonlyusedpermeablemethods.Themethodismainlyusedtomeasuretheconcretetestblockwithhighpermeability.Itmainlymeasurestheflowrateandflowrateoftheliquidflowingthroughtheconcretetestblock,forexample,themeasurementageisshorter.Theconcretewithlowstrength;thismethodisusedtodeterminethepermeabilitycoefficientKfoftheconcretetestblockaccordingtoDarcy'slaw,andtheformulaofthepermeabilitycoefficientisdetermined: Where:Kfisthepermeabilitycoefficientmeasuredbytheflowmethod;uistheviscosityofthetestliquid;Qistheflowrateoftheliquid;Aisthecross-sectionalareaof​​theliquidpassingthroughthetestpiece;tisthetimetopassthroughthetestpiece;distheheightofthetestpiece;Fortheheightofthehead. 1.2Chlorideionpenetrationmethod Studieshaveshownthatconcretewithgoodresistancetochloridepenetrationcanindicatethatconcretehasgoodresistancetowaterandgaspermeation. 1.2.1Chlorideionpenetrationmethod Whentestingthepermeabilityofconcretetestblocksbychlorideionpermeationmethod,theconcretetestblocksneedtobeimmersedinacertainconcentrationofchlorideionpool,asshowninFigure1.Chlorideionspermeatefromonesideoftheconcretetestblocktotheotherside.Afteraperiodoftime,theconcretetestblockistakenout,dried,andsliced​​alongthesideofthechlorideionsolutiontotheotherside,andAsamplewastakenoneachofthesheets,andthechlorideioncontentwasanalyzedtodeterminetheconcentrationgradientinthechlorideionpermeationdirection,andthepermeabilitycoefficientoftheconcretetestpiecewascalculatedbasedonthis.

Why choose high speed without using a concrete pavement with better stability?

Nowadayspeople'squalityoflifeisgettinghigherandhigher,andcarshavebecomeanindispensablemeansoftransportation.Almosteveryfamilyoffourwillhaveacar.However,whenwedriveout,weshouldnotcareabouthowfastthecarcandrive,buthowtodriveitsafer.Inadditiontochoosingbetterqualitytires,pavementmaterialscanhaveamajorimpactonourdrivingsafety. Atpresent,themorecommonroadsurfaceinChinaisasphaltpavementandconcretepavement,whichisfamiliartoeveryone.However,conventionally,reinforcedconcretepavementshavemuchhigherdurabilityanddurabilitythanasphaltpavements.Whynotuseasphaltpavementsinsteadofhighspeed? Infact,intheearlydaysofChina,asphaltpavementwasnotverycommon,mainlybasedonconcretepavement.Untillater,itwasfoundthatasphaltpavementhadbetterroadperformance,betterductility,flexibilityandplasticity,anditwasgraduallypromoted..Whenitcomestoroadflexibility,thisisstillveryimportant.Becauseontheroad,inadditiontosmallvehiclesforhomeuse,largeandheavytransportvehiclescanoftenbeseen.Althoughtheconcretepavementisveryrigid,ithasnotoughnessandispronetobreakage. Anotherpointistheconstructionandmaintenanceofconcretepavement.Asweallknow,duetoitscharacteristics,afterfillingconcrete,inordertoensurethequalityoftheroadsurface,itneedstowaitforittocompletelysolidifybeforeitcanbeopenedtotraffic.Thistimewillgenerallyexceed20days.Theremustbenodisturbanceduringthisperiodtoensurecontinuedandgoodmaintenance.Intermsofmaintenance,sincetheconcretestructuresaregenerallydesignedtobepiecebypiece,ifdamageoccurs,thewholeconcreteslabshouldbeexcavatedandreconstructedasawhole,andtheconstructionistroublesome. Moreover,inordertoensurethatthereisnogreatinfluenceonthethermalexpansionandcontraction,thegapbetweentheconcreteslabsisrelativelylarge,whichalsocausesustogenerateverylargenoiseduringthedrivingprocess.Becausetheconcreteroadsurfaceishard,whenthevehiclespeedexceeds80km/h,thecarnoisewillbeveryobvious.Althoughthecarisgenerallysoundproof,thetimeisstilluncomfortableontheroadwithageneralspeedof120orso.