Concrete spacers yog qhov tseem ceeb rau kev ua kom ntseeg tau tias cov hlau tuav hauv cov pob zeb ua vaj tse yeej ib txwm raug qhov chaw, tsis hloov lossis raug. Cov ntsiab lus zoo li tsis tseem ceeb no ua lub luag haujlwm tseem ceeb hauv kev ua kom lub thickness ntawm cov hlau npog, txhim kho cov kav ntev thiab kev nyab xeeb ntawm cov qauv.
Yog tsis muaj cov ntaub qhwv no, cov hlau tuav tuaj yeem raug cuam tshuam rau ib puag ncig, ua rau corrosion thiab thaum kawg, tawg ntawm cov pob zeb thiab txawm tias cov qauv tsis ua haujlwm. Lawv tsis tsuas yog txuas ntxiv lub neej ntawm lub tsev tab sis kuj pab cov haujlwm ua tau zoo dua cov cai thiab cov qauv uas muaj feem xyuam nrog kev tswj hwm tus nqi -kev ua tau zoo thiab kev tsim kho kom zoo.
Txhais thiab siv cov pob zeb sib dhos
Qhob spacersyog cov khoom me me siv los xyuas kom meej qhov chaw ntawm rebar nyob rau hauv kev tsim kho pob zeb. Lawv lub luag haujlwm tseem ceeb yog tswj kom muaj kev sib koom ua ke ntawm lub rebar thiab qhov chaw.
Lub hom phiaj:
Kev tuav ruaj ruaj: Spacers tuav lub rebar nyob rau hauv qhov chaw thaum lub sij hawm pouring txheej txheem, kom ntseeg tau hais tias lub pob zeb npog qhov tob yog tiav thoob plaws hauv lub pob zeb qauv.
Tiv thaiv corrosion thiab puas: Spacers tiv thaiv ya raws, tshuaj, thiab huab cua los ntawm kev nkag mus, txo qhov kev pheej hmoo ntawm corrosion thiab tawg.
Kev Txhim Kho Zoo: Qhov kev tso kawm ntawm cov rebar ua rau muaj zog dua thiab muaj zog dua cov khoom ua tiav tiav.
Hom Pob Zeb Spacers
Pob zeb spacers tuaj nyob rau hauv ntau hom, txhua tus tsim los ua kom tau raws li qhov sib txawv ntawm qhov chaw thiab cov qauv tsim. Cov hom muaj xws li yas, fiber ntau- siv zog, steel, thiab cov duab tshwj xeeb.
Cov ntaub qhwv yas yog siv dav vim lawv cov qauv tsim, pheej yig, thiab yooj yim ntawm kev tuav. Lawv yog cov zoo tagnrho rau cov vaj tsev nyob thiab kev lag luam, tab sis tej zaum yuav tsis zoo li ruaj nyob rau hauv hnyav loads.
Fiber-cov ntaub qhwv muaj zog ntxiv nrog cov fibers ntxiv rau lub zog thiab yog qhov zoo tagnrho rau kev xav tau tej yaam num xws li txuas hniav los yog tunnels uas yuav tsum tau muaj zog durability thiab resilience.
Cov ntaub qhwv hlau, thaum tsis tshua muaj, qee zaum siv rau cov ntawv tshwj xeeb. Txawm li cas los xij, lawv yuav tsum tau ua tib zoo tuav kom tsis txhob muaj kev pheej hmoo corrosion.
Cov ntaub qhwv tshwj xeeb muaj nyob rau hauv cov qauv kev cai xws li cov rooj zaum, thaiv, lossis lub log kom haum rau cov txheej txheem rebar nyuaj lossis cov kev xav tau ua ntej.
Xaiv Qhob Spacer Qhov siab
Qhov siab ntawm pob zeb spacers ncaj qha txiav txim siab lub thickness ntawm lub pob zeb npog siv rau lub rebar thiab yog ib qho tseem ceeb hauv kev ua kom muaj kev ruaj ntseg thiab kev ruaj ntseg. Qhov tsawg kawg nkaus qhov siab ntawm lub spacer yuav tsum sib npaug zos rau nws tus kheej qhov ntev kom ntseeg tau tias cov pob zeb yuav tsum tau siv rau lub rebar.
Spacers txhawb nqa lub rebar, thiab lawv qhov siab tiag tiag txawv nyob ntawm qhov chaw teeb tsa. Tsim rebar npog thickness sib txawv ntawm cov khoom xws li slabs, kab teeb, kab, thiab phab ntsa, xaiv qhov tsim nyog spacer qhov siab tseem ceeb heev. Piv txwv li, ib lub slab nyob yuav muaj ib tug cover ntawm 15-20 hli, ib tug nqaj 25 hli, thiab ib kem 30 hli, thaum tshwj xeeb tej yaam num xws li txuas hniav los yog tunnels yuav tsum tau 40-75 hli. Yog li ntawd, spacer loj thiab qhov siab yog qhov tseem ceeb specification tsis thaum lub sij hawm txiav txim thiab kev tsim kho.
Cov txiaj ntsig ntawm Kev Siv Pob Zeb Spacers
Precise Rebar Positioning: Spacers tuav rebar nyob rau hauv qhov chaw, ua kom cov pob zeb sib xws, uas yog ib qho tseem ceeb rau kev ncaj ncees, load-cov kabmob muaj peev xwm, thiab kev ua haujlwm ruaj khov.
Txo Corrosion Risk: Spacers tiv thaiv rebar los ntawm ya raws, huab cua, thiab tshuaj tua kab mob. Qhov no ua rau txo qis qhov tshwm sim ntawm xeb, tawg, thiab kev ua tsis tiav ntxov ntxov.
Txhim kho kev ua tau zoo: Kev siv cov spacers kom zoo txo cov sij hawm cov neeg ua haujlwm yuav tsum tau kho tus kheej rebar, txo rework thiab ua kom lub sij hawm tsim kho.
Prefabrication thiab Automation Friendly: Kev tsim kho niaj hnub no feem ntau tso siab rau prefabrication systems thiab cov cuab yeej siv tshuab. Spacers seamlessly integrate nrog cov txheej txheem no, kom ruaj khov thiab raug thaum lub sij hawm pouring txheej txheem.
Yuav Ua Li Cas Xaiv Txoj Cai Pob Zeb Spacer
Xaiv txoj cai pob zeb spacers yog qhov tseem ceeb rau kev ua kom muaj qhov tseeb rebar qhov chaw, yog li txo qhov kev pheej hmoo ntawm kev tawg, corrosion, thiab ntev - lub sij hawm kev puas tsuaj. Yam tseem ceeb uas yuav tau xav txog muaj xws li:
Rebar loj thiab qhov yuav tsum tau muaj
Rau cov slabs hauv vaj tse nrog rebar txoj kab uas hla ntawm 6-12 hli thiab qhov sib nrug ntawm 150{12}}200 hli, tuaj yeem siv tau; Rau cov vaj tsev nyob nrog lub rebar txoj kab uas hla ntawm 6-12 hli thiab qhov sib nrug ntawm 150-200 hli, lub teeb yuag rebar (Lig 20 × 20 mm) tuaj yeem siv. Rau kab teeb thiab kab uas muaj lub ntsiab rebar txoj kab uas hla Loj dua los yog sib npaug li 16 hli thiab interlayer spacing Ntau dua los yog sib npaug li 100 hli, siv 30 × 30 mm high-compressive-strength qhob spacers (Ntau dua los yog sib npaug rau 50 MPa) los tiv thaiv kev hloov pauv hauv qab twj tso kua mis. Nws yog ib qho tseem ceeb uas yuav tau xaiv cov spacers uas phim cov rebar loj thiab qhov sib txawv kom tsis txhob muaj kev hloov pauv thaum lub sij hawm nchuav.
Chaw thau khoom thiab cov qauv tsim
Rau cov txuas hniav thiab cov tunnels (tsim qib siab dua lossis sib npaug C50/60, khov-thaw qib F3, lossis chloride ib puag ncig qib XD3), cov spacers yuav tsum muaj lub zog compressive ntau dua lossis sib npaug li 60 MPa thiab qhov nqus dej tsawg dua lossis sib npaug li 5%. Rau cov tsev nyob (cov chav kawm raug XC1), lub zog ntawm 25 MPa yog txaus. Hnyav-cov haujlwm ua haujlwm yuav tsum tau ua kom muaj zog dua, thaum lub teeb- cov ntawv thov hauv vaj tse tuaj yeem siv tus qauv- qib spacers.
Kev xaiv cov khoom siv (yas, pob zeb, lossis hlau)
Yas: Zoo tshaj plaws rau qhov chaw qhuav hauv tsev; yield kub siab tshaj los yog sib npaug rau 90 degree, UV stabilizer ntsiab lus Ntau dua los yog sib npaug rau 0.3%.
Pob Tawb: Yuav tsum phim cov niam txiv sib xyaw ua ke, muaj qhov sib npaug coefficient Ntau dua lossis sib npaug rau 0.6, thiab qhov ntsuas hluav taws kub ntawm REI 120+.
Hlau: Txwv rau qhov xwm txheej tshwj xeeb (xws li, electromagnetic shielding lossis T> 200 degree), AISI 316L stainless hlau yuav tsum, nrog rau cov hlau bar muaj peev xwm sib txawv tsawg dua lossis sib npaug li 50 mV los tiv thaiv galvanic corrosion.
Ua raws li Cov Qauv
Nco ntsoov xyuas kom koj cov gaskets ua raws li cov qauv hauv tebchaws thiab thoob ntiaj teb. Cov khoom uas tsis yog- ua raws cai yuav txuag tau tus nqi them ua ntej, tab sis lawv tuaj yeem ua rau muaj kev pheej hmoo nyab xeeb thiab ua haujlwm kim dua tom qab. Cov ntawv pov thawj gaskets ua kom muaj kev ntseeg siab thiab kev thaj yeeb ntawm lub siab.
Xaus
Concrete spacers yog cov khoom me me tab sis cov khoom tseem ceeb uas ua kom cov kav ntev, kev nyab xeeb, thiab kev ua tau zoo ntawm cov pob zeb ua kom muaj zog. Los ntawm kev tswj xyuas qhov kev ncua deb ntawm rebar thiab pob zeb nto, lawv tiv thaiv corrosion, txo cov txheej txheem tsis xws luag, thiab txhim kho tag nrho cov zoo. Xaiv qhov zoo ntawm spacer, raws li cov khoom siv, qhov loj me, thiab daim ntawv thov, tuaj yeem txuag lub sijhawm, txo cov nqi, thiab ua kom ntev - kev tsim kho. Los ntawm cov tsev nyob mus rau cov phiaj xwm loj loj, siv cov pob zeb sib xyaw kom raug yog ib kauj ruam yooj yim uas lav qhov kev ntseeg tau thiab kev nyab xeeb ntawm txhua qhov kev teeb tsa. rebar thiab pob zeb nto, tiv thaiv corrosion, txo cov txheej txheem tsis xws luag, thiab txhim kho tag nrho cov khoom zoo. Xaiv qhov zoo ntawm spacer, raws li cov khoom siv, qhov loj me, thiab daim ntawv thov, tuaj yeem txuag lub sijhawm, txo nqi, thiab ua kom ntev - kev tsim kho. Los ntawm cov tsev nyob mus rau cov phiaj xwm loj, siv cov pob zeb ua kom raug yog ib kauj ruam yooj yim uas lav qhov kev ntseeg tau thiab safrebar thiab cov pob zeb ua pob zeb, lawv tiv thaiv corrosion, txo cov txheej txheem tsis xws luag, thiab txhim kho tag nrho cov khoom zoo.
