Qhov tsis zoo ntawm cov fiberglass rebar
Fiberglass hlau (GFRP, lossis cov iav fiber reinforced yas) yog cov khoom sib xyaw ua ke, muaj cov iav fibers thiab resin, siv ua lwm txoj hauv kev rau cov hlau txhawb nqa ib txwm muaj hauv qee qhov kev siv qauv. Txawm hais tias nws muaj ntau qhov zoo, muaj qee qhov tsis zoo:
1. tsis zoo alkali tsis kam:Cov iav fibers raug kev puas tsuaj hauv cov chaw alkaline, thaum cov chaw ua vaj tse feem ntau yog alkaline, uas yuav cuam tshuam rau cov khoom sib txuas thiab lub sijhawm ntev ntawm cov fiberglass reinforcing bars rau cov pob zeb.
2. Lub zog txo qis:Cov hlau fiberglass reinforcing muaj lub zog shear qis dua piv rau cov hlau ib txwm muaj, uas txwv lawv txoj kev siv hauv cov khoom siv uas xav tau kev tiv thaiv shear siab dua.
3. Tsis yooj ywm:Fiberglasshlau tsis yooj ywm li cov hlau ib txwm muaj, uas txhais tau tias lawv tuaj yeem tiv taus qhov deformation tsawg dua ua ntej ncav cuag lawv lub zog kawg, thiab tej zaum yuav tsis yog qhov kev xaiv zoo tshaj plaws rau qee qhov kev tsim qauv av qeeg.
4. Kev ua haujlwm tsis zoo thaum kub siab:Lub zog ntawmfiberglasshlau txo qis heev hauv cov chaw kub siab, uas txwv lawv txoj kev siv hauv cov ntawv thov uas lawv yuav raug rau qhov kub siab.
5. Cov teeb meem nqi: Thaum fiberglasshlau qee zaum yuav txuag tau nyiaj, qee zaum lawv yuav kim dua li cov hlau txhawb nqa ib txwm muaj vim yog qhov tshwj xeeb ntawm cov khoom siv, kev tsim khoom thiab kev teeb tsa.
6. Kev teeb tsa tus qauv thiab kev tsim qauv: Daim ntawv thov ntawmfiberglass reinforcing bars yog qhov tshiab dua piv rau cov hlau txhawb nqa ib txwm muaj, yog li ntawd cov qauv thiab cov qauv tsim tshwj xeeb yuav tsis tau laus txaus, thiab cov neeg tsim qauv yuav ntsib cov kev txwv hauv cov lus qhia thiab cov lus qhia rau lawv siv.
7. Cov txheej txheem tsim kho:Kev teeb tsa thiab kev tsim kho ntawmfiberglasshlau xav tau cov txuj ci tshwj xeeb thiab kev ceev faj, uas yuav ua rau muaj kev nyuaj siab thiab tus nqi ntawm kev tsim kho.
8. Cov teeb meem kev khi hlua: Qhov kev txuas ntawmfiberglasshlau tuaj yeem nyuaj dua li cov hlau txhawb nqa ib txwm muaj, xav tau cov qauv tsim tshwj xeeb thiab cov txheej txheem tsim kho.
Txawm hais tias muaj cov teeb meem no los xij,iav fiber rebar tseem yog ib qho kev xaiv zoo rau qee qhov kev siv tshwj xeeb, tshwj xeeb tshaj yog qhov twg xav tau cov ntaub ntawv tsis yog hlau nplaum, tiv taus corrosion lossis lub teeb yuag.
Qhov zoo ntawm fiberglass rebar
GFRP muaj cov txiaj ntsig zoo li nram no dua li cov hlau ib txwm muaj (feem ntau yog cov hlau carbon):
1. Kev tiv thaiv xeb:Cov tuav GFRP tsis xeb, yog li lawv kav ntev dua nyob rau hauv cov chaw ib puag ncig hnyav xws li marine, tshuaj lom neeg xeb lossis cov av noo siab.
2. Tsis yog hlau nplaum:Frp rebar tsis yog hlau nplaum, uas ua rau lawv muaj txiaj ntsig zoo rau cov xwm txheej uas xav tau cov khoom siv tsis yog hlau nplaum, xws li chav MRI hauv tsev kho mob lossis ze ntawm cov khoom siv tshawb nrhiav geological.
3. Sib dua:Fiberglass rebar muaj qhov ceev qis dua li cov hlau ib txwm muaj, uas ua rau lawv yooj yim dua rau kev tuav thiab teeb tsa thaum lub sijhawm tsim kho thaum tseem txo qhov hnyav ntawm tag nrho cov qauv.
4. Kev rwb thaiv hluav taws xob:Cov hlau polymer uas muaj cov iav fiber ntau ntxiv yog cov insulators ntawm hluav taws xob, yog li lawv tuaj yeem siv rau hauv cov qauv uas xav tau kev rwb thaiv hluav taws xob, xws li cov pej thuam sib txuas lus lossis cov qauv txhawb nqa rau cov kab hluav taws xob.
5. Kev tsim qauv yooj yim:Cov tuav GFRP tuaj yeem hloov kho kom haum rau cov duab thiab qhov loj raws li qhov xav tau, ua rau cov neeg tsim qauv muaj kev ywj pheej ntau dua.
6. Kev Ruaj Khov: Nyob rau hauv cov xwm txheej zoo,fiberglass reinforcing bars tuaj yeem muab kev ruaj khov mus sij hawm ntev, txo cov nqi kho thiab hloov pauv.
7. Kev tiv thaiv qaug zog: Cov fiberglass rebars muaj kev tiv taus kev qaug zog zoo, uas txhais tau tias lawv tswj hwm lawv cov kev ua tau zoo nyob rau hauv cov khoom thauj rov ua dua, ua rau lawv haum rau cov qauv uas raug rau cov khoom thauj cyclic, xws li cov choj thiab cov kev loj.
8. Cov coefficient qis ntawm kev nthuav dav thermal:Cov fiberglass rebars muaj cov coefficient qis ntawm thermal expansion, uas ua rau lawv ruaj khov zoo dua hauv cov chaw uas muaj kev hloov pauv kub loj.
9. Txo cov pob zeb npog: Vim tiascov fiberglass rebars tsis txhob xeb, qhov tuab ntawm cov pob zeb npog tuaj yeem txo qis hauv qee qhov kev tsim, txo qhov hnyav thiab tus nqi ntawm cov qauv.
10. Kev ua tau zoo ntawm cov qauv: Hauv qee daim ntawv thov,cov fiberglass rebars tuaj yeem ua haujlwm zoo dua nrog cov pob zeb ua vaj tse thiab txhim kho kev ua tau zoo ntawm cov qauv, xws li hauv kev khoov thiab kev tiv thaiv shear.
Txawm hais tias muaj cov txiaj ntsig no los xij,cov fiberglass rebars kuj muaj lawv cov kev txwv, raws li tau hais ua ntej. Yog li ntawd, thaum xaiv siv iav fiber cov hlau txuas, nws yog ib qho tsim nyog yuav tsum xav txog txhua yam kev xav tau ntawm cov qauv thiab cov xwm txheej ib puag ncig.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-21-2024
