Lub pob zeb yog lub hauv paus ntawm cov txheej txheem niaj hnub no thiab ua lub luag haujlwm tseem ceeb hauv kev tsim kho, tab sis txoj kev nws tau txhawb nqa tau dhau los ua qhov hloov pauv loj. Tau ntau xyoo lawm, steel tuav tau tswj hwm kev tsim kho kev lag luam, muab lub zog thiab cov qauv. Txawm li cas los xij, xyoo no, fiber ntau -cov pob zeb ua vaj tse (FRC) tau tshwm sim raws li kev nyiam ntawm cov kws tsim qauv thiab cov kws tsim qauv rau nws txoj kev txhim kho tawg thiab hloov tau yooj yim.
Dab tsi yog Fiber Reinforced Concrete?
Fiber-taub pob zeb (FRC)yog ib hom tshiab ntawm cov khoom siv ua vaj tse ntxiv. Nws siv cov cement paste, mortar, lossis pob zeb ua cov khoom siv hauv paus, sib xyaw ua ke luv luv, tsis tu ncua fibers lossis txuas ntxiv, ntxhib hluavtaws fibers, xws li steel, iav, hluavtaws, lossis ntuj fibers, txhawm rau txhim kho kev ua tau zoo ntawm pob zeb. Cov fibers zoo, muaj zog fibers no tsim ib qho peb- qhov sib txuas ntxiv qhov sib txuas hauv cov pob zeb, txhim kho cov khoom siv lub zog tensile, tawg tsis kam, thiab kev cuam tshuam. Qhov sib ntxiv ntawm fibers ua rau cov pob zeb tsis tshua muaj kev cuam tshuam rau microcracks hauv qab thauj khoom, txhim kho tag nrho cov toughness thiab durability ntawm cov qauv.
Feature ntawm Fiber Reinforced Concrete
1. Ncua qhov inhibition. Nws tiv thaiv kev nthuav tawm ntawm cov teeb meem uas twb muaj lawm (microcracks) nyob rau hauv cov cement matrix thiab zoo ncua kev tsim cov kab nrib pleb tshiab.
2. Kev tiv thaiv seepage. Los ntawm kev tiv thaiv cov kab nrib pleb, nws ua rau kom qhov ntom ntom ntawm cov cement matrix thiab tiv thaiv kom tsis txhob ya raws.
3. Durability. Nws txhim kho cov cement matrix qhov Frost tsis kam, qaug zog, thiab lwm yam khoom, yog li txhim kho nws cov kav ntev.
4. Kev cuam tshuam tsis kam. Nws txhim kho cov cement matrix lub peev xwm los tiv thaiv deformation, yog li txhim kho nws cov toughness thiab cuam tshuam tsis kam.
5. Lub zog tensile. Thaum siv nrog high elastic modulus fibers, nws tuaj yeem txhim kho lub zog tensile ntawm matrix.
6. Kev zoo nkauj: Nws txhim kho cov khoom nto ntawm cov qauv cement, ua rau lawv denser, smoother, smoother, thiab ntau aesthetically pleasing.
Dab tsi yogRebarReinforcement hauv pob zeb?
Rebaryog ib qho tseem ceeb ntawm cov khoom siv los txhawb thiab txhawb nqa cov vaj tse. Thaum cov pob zeb muaj cov khoom zoo heev compressive, nws muaj lub zog tensile tsawg.Rebarthem nyiaj rau qhov tsis muaj zog no, ua kom nws lub zog tag nrho thiab kev ruaj ntseg zoo. Los ntawm embeddedrebarnyob rau hauv pob zeb, nws nce nws load-bearing peev. Kev sib xyaw ua ke no yog siv dav hauv cov tsev, txuas hniav, hauv paus, thiab lwm yam haujlwm.
Feature ntawmRebar
Kev siv thiab kev ua haujlwm
Rebarpab pob zeb tiv thaiv kev tawg, khoov, thiab tawg hauv cov khoom hnyav. Nws ua raws li lub cev pob txha rau pob zeb, ua kom cov txheej txheem ruaj khov thiab ntev - lub sij hawm durability ntawm lub tsev, txuas hniav, lub hauv paus, thiab lwm yam tseem ceeb infrastructure.
Cov ntaub ntawv thiab hom
Feem ntaurebaryog ua los ntawm carbon steel vim nws cov khoom sib txuas zoo heev thiab lub zog tensile siab. Txawm li cas los xij, nyob rau hauv corrosion- ib puag ncig yooj yim, lwm cov ntaub ntawv xws li epoxy-coatedrebar, galvanizedrebar, thiab stainless hlaurebarsiv.
Nws ua haujlwm li cas
Tom qab hardening, qhob khov kho grips saum npoo ntawm lubrebar. Daim ntawv cog lus no tso cai rau ob qho khoom siv ua haujlwm ua ke- cov pob zeb ua kom muaj zog compressive, thaum lubrebarbears tensile rog- los ua ib qho kev sib npaug thiab muaj zog.
Fiber Reinforced Concrete vsRebar:
1. Kev ua tau zoo
Fiber-cov pob zeb siv zog (FRC): Fibers xws li hlau, iav, los yog hluavtaws fibers yog sib cais thoob plaws hauv lub pob zeb, ua kom lub zog tensile, ductility, thiab tawg tsis kam. Microcracks raug tswj ua ntej lawv tuaj yeem nthuav tawm.
Rebar-cov pob zeb muaj zog:Rebartau muab tso rau hauv qhov siab - qhov chaw muaj kev ntxhov siab los tiv thaiv tensile thiab dabtsi yog khoov quab yuam, muab kev txhawb nqa tsim nyog.
2. Tus nqi
FRC: Vim yog kev siv cov fibers tshwj xeeb, cov nqi khoom siv yog me ntsis siab dua, tab sis kev kho thiab tu cov nqi yuav raug txo.
Rebar: Tus nqi pib ntawm cov khoom siv qis dua, tab sis tso thiab khi yuav tsum tau ua haujlwm tseem ceeb, nce nqi tag nrho.
3. Lub zog tensile
FRC: Muab qhov nce nruab nrab ntawm lub zog tensile thoob plaws tag nrho cov matrix.
Rebar: Muab lub zog tensile siab ntawm cov ntsiab lus kev ntxhov siab.
4. Durability
FRC: Kev tswj kev tawg zoo heev; fibers txo shrinkage thiab ua rau muaj kev cuam tshuam tsis kam.
Rebar: Muaj zog thiab ruaj khov, tab sis muaj kev cuam tshuam rau corrosion yog tias tsis raug them.
5. Kev tsim kho tsis yooj yim
FRC: Yooj yim rau nteg; tsis tas yuav muaj qhov chaw ntxiv.Rebar: complex installation; Qhov kev tso kawm meej yog qhov tseem ceeb rau kev ua kom muaj kev ncaj ncees.
6. Cov ntawv thov
FRC: Haum rau pavements, industrial flooring, shotcrete, thiab precast Cheebtsam.
Rebar: Qhov zoo tshaj plaws rau cov khoom siv xws li kab teeb, kab, slabs, thiab hauv paus.
Puas Fiber hauv pob zeb hloovRebar?
Fiber-cov pob zeb muaj zog (FRC) tau txais txiaj ntsig hauv kev tsim kho kev lag luam rau nws txoj kev txhim kho tawg, kev cuam tshuam lub zog, thiab kav ntev. Tab sis cov lus nug tseem tshuav: Puas yog nws hloov cov tsoos steel reinforcement?
1. Lub luag haujlwm ntawm Fibers
Fibers, xws li hlau, iav, los yog cov khoom siv hluavtaws, tau muab faib ua ke thoob plaws hauv qhov sib xyaw ua ke.
Lawv tswj cov kab nrib pleb shrinkage, txhim kho toughness, txo microcracking, thiab ua kom pob zeb muaj zog dua.
Hauv cov khoom siv uas xav tau lub zog tensile siab, FRC tsis tuaj yeem hloov cov hlau.
2. Rebarhauv FRC Applications
Rebartseem yog qhov tseem ceeb rau cov khoom siv xws li kab teeb, kab, slabs, thiab thauj khoom-cov kabmob phab ntsa. FRC feem ntau ntxiv cov hlau los ntawm kev ua kom tawg thiab txo cov kev tu ncua.
Hauv cov ntawv uas tsis yog - cov qauv siv, xws li pavements, industrial flooring, shotcrete, los yog precast Cheebtsam, FRC tuaj yeem siv yam tsis muaj hlau ntxiv, nyob ntawm qhov tsim tshwj xeeb.
Kev siv cov hlau thiab fibers ua ke tsim ib qho kev sib xyaw ua ke uas ua kom muaj zog tensile, durability, thiab nto zoo. Txoj hauv kev no muaj ntau zuj zus nyob rau hauv cov phiaj xwm niaj hnub no tsom rau kev ua tau zoo, lub neej ntev, thiab txo tus nqi tu.Does Fiber hauv pob zeb hloovRebar?
Xaus
Fiber-reinforced qhob (FRC) muaj cov txiaj ntsig tseem ceeb, suav nrog kev txhim kho kev ua kom tawg, muaj zog dua, thiab ntev dua. Txawm li cas los xij, nws tsis tas yuav hloov steel. Cov yam ntxwv ntawm cov khoom siv rau cov khoom tseem ceeb, xws li kab teeb, kab, thiab slabs, tseem xav tau cov khoom siv hlau ib txwm siv kom ua tiav lub zog tensile zoo.
Hauv ntau qhov xwm txheej, kev sib txuas cov fibers nrog cov hlau tuaj yeem tsim cov txheej txheem sib xyaw ua ke uas ua kom muaj kev ncaj ncees, txo kev txij nkawm, thiab txhim kho qhov zoo.
