Khoom npe
Kev Rebar (Highway Reinfing Steel Bar / Kev Txhim Kho Rebar)
1. Cov ntsiab lus
Kev Rebar Lojyog qhov siab - lub zog, ruaj hlob txhawb nqa tus hlau tshwj xeeb tsim rauKev Loj Hlob Loj, Kev Hla, tuav cov txheej txheem, thiab tus choj nkagCov. Nws muab lub tensile tseem ceeb rau kev ua haujlwm, tiv thaiv kev tawg, txhim kho kev thauj khoom ntawm cov pob zeb thiab txuas ntxiv.
Tsis zoo li txawv txawv tsev rebar, txoj kev loj hlob steel yuav tsum withstandHnyav dynamic ntsaws, kub -}}}}}}}}}}}}}}}}}}} Kev co thiab tshuaj lom neeg kev co, thiab tshuaj lom neeg corrosiontshwm sim los ntawm de - icing ntsev los yog cov pa paug. Yog li ntawd, nws yog tsim nrogDuctility high, nkees tsis kam, thiab kev tiv thaiv corrosion, kom ntseeg cov qauv txheej txheem thiab ntev -} kev ua haujlwm nyob rau hauv cov chaw ua haujlwm tsheb tas mus li.
2. Cov qauv thiab cov qhab nia sib npaug
| Lub hom phiaj | Xws li qib | Yield zog (mpa) | Raug |
|---|---|---|---|
| Tuam Tshoj (GB / T 1499.2) | HRB500E / hrbf500e / hrb600 | 500–600 | Kev pavement, choj, thiab foundation txhawb |
| Tebchaws Asmeskas (ASTM A706 / A615) | Qib 60 / Qib 75 | 420–520 | Txoj kev loj, cov choj, thiab cov slabs |
| Teb chaws Europe (EN 10080) | B500C / B600B | 500–600 | Kev Pab Txhawb Cov Pav Systems |
| Is Nrias teb (yog 1786) | FE500D / FE550D | 500–550 | Txoj kev thiab cov ntawv thov kev siv hluav taws xob |
| Nyiv (JIS G3112) | SD490 / sd590 | 490–590 | Kev ua haujlwm slabs thiab tunnels |
Rau kev loj tsim kev tsim kho,Qib III-IV Rebars(Xij lub zog ntau dua lossis sib npaug nrog 400 MPA) feem ntau siv, feem ntau nrogEpoxy lossis Galvanized Txheej Txheemkom ntseeg tau corrosion tsis kam.
3. Cov Khoom Siv Kho Tshuab
| Ntiag tug | Cov Khoom Nquag Yog | Kev piav txog |
|---|---|---|
| Khoom | Kub -} rolled, microalloyed, lossis thermomechanically kho cov hlau | Rau lub zog siab thiab ductility |
| Yield zog (FY) | 400-600 mpa | Muab cov keej muaj zog tswj thiab thauj khoom - cov kabmob muaj peev xwm |
| Qhov kawg tensile lub zog (FU) | 550-750 MPa | Ua kom muaj kev tiv thaiv kev qaug zog thiab cuam tshuam |
| Elongation (Δ5) | Ntau dua los yog sib npaug rau 12-16% | Tso cai rau kev txhawb nqa kev ntxhov siab thiab tiv thaiv breittle tsis ua tiav |
| Elastic Modulus (e) | Tom ntej no 200 GPA | Muab stiffness thiab deflection tswj |
| Qeeb zog tsis kam | Zoo tshaj | Tsim rau Cyclic Tsheb Chaw thau khoom |
| Corrosion Kuj | Siab | Coated lossis alloyed rau lub neej ntev hauv chloride ib puag ncig |
4. Kev Tsim Kho Thiab Ua
Kev Rebar loj yog tsim nrog kev tswj hwm metallurgical kom ntseeg tau tias ua tau zoo ib yam thiab kev ntseeg tau:
Kub Rolling + Tshuaj Txias:Ua kom pom cov qauv ua kom zoo nkauj thiab muaj zog.
Kev kho thermomechanical (TMT):Ua kom muaj lub zog sib ntaus sib tua sib tw nrog cov ductile ferrite-Pearlite tub ntxhais.
Microalloying (V, NB, ti):Txhim kho lub zog, nkees tsis kam, thiab weldability.
Kev xaiv lub tsho tiv no:Epoxy, kub {- dip galvanizing, lossis zinc {{1} {}, galfan) rau kev tiv thaiv corrosion.
5. Qhov loj me thiab cov qauv hnyav
| Inch (hli) | Nyhav (kg / m) | Ib Daim Ntawv Thov |
|---|---|---|
| 8 | 0.395 | Mesh qhov cuab lub zog, curbs |
| 10 | 0.617 | Kev pavent thiab subbase slabs |
| 12 | 0.888 | Txoj kev loj slabs thiab cov qauv qauv |
| 16 | 1.578 | Txoj Kev Roading Lawj thiab Teeb Meem |
| 20 | 2.466 | Overpasses thiab choj cov hauv kev |
| 25 | 3.854 | Lub ntsiab tau txhawb nqa lub zog |
| 32 | 6.313 | Hnyav {- cov luag haujlwm thau khoom - cov kabmob qauv |
Ntev:6 m / 9 m / 12 m (tus qauv) lossis kev cai txiav ntev.
Daim Ntawv:Ncaj ncaj lossis coils (tsawg dua lossis sib npaug rau 12 hli).
Hom nto:Deformed (Ribbed) rau txoj kev sib koom ua kom zoo.
6. Cov yam ntxwv tseem ceeb thiab cov txiaj ntsig
✅ Siab zog thiab qaug zog tsis kam:Ua kom muaj ntev - xyoo kev ua tau zoo nyob rau hauv rov ua dua kev thauj khoom log chaw thau khoom.
✅ Tiav thiab shrinkage tswj:Cov kev txwv ntawm slab tawg vim qhov ntsuas kub thiab qhov kub thiab txias.
✅ Superior bonding nrog cov pob zeb uaDformic txawv qauv muab cov kev sib txuas zoo nkauj.
✅ Corrosion tiv thaiv:Muaj nyob rau hauv epoxy, galvanized, lossis alloy - coated versions.
✅ Txhim Kho Durability:Tsim rau 50-100-xyoo kev pabcuam lub neej nyob hauv txoj kev thiab txoj kev loj.
✅ Weldable thiab ua haujlwm:Haum rau mesh vuam, khoov, thiab teb fabrication.
7. Kev thov
Txhawb cov qhob pob zeb thiab txoj kev loj lawj
Kev hla dhau los, sawv, thiab cov slabs
Khaws phab ntsa thiab abutments
Qhov cuab yeej cov kab thiab underpasses
Kev sib tw pob qij txha thiab cov dowel bar tshuab
Txoj kev ntawm ntug kev thiab sib tsoo phab ntsa
Tso Kua Muag Thiab Culvert Lem
Nyob rau hauv cov rigid cov ntxig systems, txoj kev loj rebar tswj kev tawg thiab ua kom tiav txawm tias thauj khoom hloov pauv ntawm cov vaj huam sib luag.
8. Txheej thiab cov kev xaiv deg
| TXHEEJ YAM | Kev piav txog | Pom zoo ib puag ncig |
|---|---|---|
| Epoxy coated (Astm A775) | Fusion - Txoj Kev Sib Txawv Tiv Thaiv Kev Tawm Tsam tiv thaiv Chloride thiab Saldorion | Kev loj lawj, txuas hniav, txoj kev ntug hiav txwv |
| Kub - dip Galvanized (Z180-Z275) | Zinc Txheej tiv thaiv tiv thaiv oxidation thiab tsib - iching ntsev | Nqaum thiab txias {- huab cua kev loj |
| Zinc -} aluminium alloy (Galfan) | Cov adhesion zoo dua thiab kev tiv thaiv corrosion | Ntev - txoj kev ntawm txoj kev ntawm txoj kev |
| Uncoated Dub Bar | Rau qhuav, nyob rau hauv ib puag ncig ib puag ncig | Tsawg -} Txij Nkawm Txoj Kev |
| Stainless lossis duplex rebar | Siab tshaj plaws corrosion tsis kam | Cov Tolnels, Nqaum Txoj kev loj, ntev- lub neej ua haujlwm |
9. Cov lus qhia thiab kev teeb tsa
Tej thiab dabtsi yog:Txias khoov khoov rau ib tus qauv (ntau dua lossis sib npaug zos rau 5 × chanch ua kom lub vojvoog).
Vuam:Siv cov qib weldable (ASTM A706 / hrb500e) nrog rau WPS kom raug thiab qis} cov ntsiab lus carbon.
Kev tso kawm:Saib xyuas cov npog kom tuab (ntau dua lossis sib npaug nrog 50 hli rau cov paves thiab lawj).
Anchorage:Ua raws li Aamhle / Aci Kev Tsim Kho Ntev cov lus qhia rau siab - tawm los bars.
Cia:Kav tsij sawv ntsug, npog, thiab qhuav kom tsis txhob xeb lossis txheej puas tsuaj.
10. Kuaj thiab Tswj Tswjhwm Zoo
Txhua lub zog tseem ceeb cov hom phiaj yuav tsum dhau kev ua kom muaj kev pov thawj zoo rau kev ua tau ntev- lub sij hawm kev ua haujlwm:
Kev ntsuam xyuas txhua yam:Yield, tensile, thiab elongation khoom.
Qaug zog kuaj:Simulated cyclic tsheb thauj mus los.
Khoov / rov qiv ntsuas:Ua kom nruj thiab muaj peev xwm.
Tshuaj Ntsuam Xyuas Tshuaj:Paub meej tias Carbon sib npaug (CE tsawg dua lossis sib npaug rau 0.45).
Txheej Kev Xeem:Thickness (dft), adhesion, ntsev {{{{} tsuag tsuag corrosion.
Mill xeem Daim Ntawv Pov Thawj (MTC):Muab rau txhua pob rau traceazelility.
Thib peb -} kev tshuaj xyuas:TÜV / SGS / BV ntawv pov thawj muaj rau export thiab cov phiaj xwm kev tsim kho.
11. Sib Piv
| Ntiag tug | Lub tsev rebar | Kev Rebar Loj |
|---|---|---|
| Paib lub zog | 335-400 MPA | 400-600 mpa |
| Qeeb zog tsis kam | Zoo li ib txwm | Siab |
| Kev ua siab loj | Tswj kav | Siab |
| Corrosion Kuj | Yam ua tau | Qhov tseem ceeb (epoxy / galvanized) |
| Txoj Kev Txiav | Tsis muaj | Epoxy / Zinc / Alloy |
| Kev Pabcuam Lub Neej | 25-50 xyoos | Mus txog 100 xyoo |
| Daim ntawv thov | Tsev | Kev loj, txoj kev, hla kev |
12. Ntim thiab xa khoom
Bundles:1-3 tons txhua, khi nrog hlau tsoo.
Khij:Xws li qhov loj me, qib, tus lej kub, thiab qauv.
Cov khoom siv hluav taws xob:Dej thiab seaworthy rau kev xa nkoj thoob ntiaj teb.
Tus Me Nyuam Daim Ntawv:Ncaj lossis coiled (rau me me diameters).
13. Cov Qauv thiab Codes rau Kev Loj Rebar
GB / T 1499.2-2018:Kub -} ribbed tuav rau qhob pob zeb nthuav dav.
ASTM A706 / A775:Weldable thiab epoxy -} coated rebar rau cov pavements.
Aashto lrfd:Tebchaws Asmeskas Kev Loj Hlais thiab cov qauv tsim qauv.
EN 10080 / Eurocode 2:European txhawb cov txheej txheem kev cai.
Yog 1786:Indian tus qauv rau ductile siab - lub zog rebar.
JIS G3112:Japanese qhov cuab lub zog txheej txheem rau kev thiab qhov chaw ua haujlwm.
14. Ntsiab lus
Kev Rebar Lojyog kev txhawb nqa cov kev daws teeb meem tsim los daws covmechanical, thermal, thiab kev ntxhov siab ib puag ncigntawm kev loj thiab txoj kev tsheb qauv. Nrog nws sib xyaw ntawmLub zog siab tensile lub zog, ductility, nkees ua yeeb yam, thiab kev tiv thaiv corrosion, nws ua kom sawv khovNtev -} kav cov kev ua tau zoonyob rau hauv cov tsheb khiav hnyav thiab hnyav.
NtawmExpressway decksrauChoj Musrumentes thiab Qhov Cuab Yeej Qhov, txoj kev rebar nyob tseem yog qhov tsis tseem ceeb ntawmruaj khov thiab muaj kev nyab xeeb kev lag luam niaj hnub infrastructure.
Koj puas xav kom kuv tsim aHighway rebar technicalTom ntej no - pachaj yam ntxwv, txheej txheem ntsuas kab, thiab cov qauv ua raws cov khoom lag luam lossis cov ntaub ntawv xa tawm?
Cim npe nrov: Txoj kev Rebar, Tuam Tshoj Tebchaws Rivrar Manufacturers, lwm tus neeg, Hoobkas
