Yuav kom tiv thaiv tau xeb ntawm cov pob qij txha hlau, kev xaiv cov khoom siv, kev tiv thaiv qhov chaw, kev tswj hwm ib puag ncig, thiab cov txheej txheem txij nkawm yog qhov tseem ceeb heev. Cov txheej txheem ua tau zoo, tau ua pov thawj hauv thaj chaw no tau txais kev txhawb nqa los ntawm cov qauv thoob ntiaj teb thiab kev xyaum ua haujlwm engineering:

‌Kev Tiv Thaiv Nto thiab Txheej Txheem‌

• ‌Kub-dip Galvanizing‌: Siv cov txheej zinc tsawg kawg yog 85 µm rau txhua qhov sib txuas. Qhov no muab kev tiv thaiv cathodic thiab ua haujlwm tau zoo heev hauv cov dej hiav txwv lossis cov chaw muaj av noo siab. Cov ntsia hlau galvanized, cov phaj, thiab cov pins siv dav hauv cov txheej txheem formwork rov siv dua.

  • Epoxy-Based Txheej SystemsSiv cov txheej txheem pleev xim ntau txheej uas ua raws li ‌ISO 12944-5: 2018, xws li:
    • ‌Primer‌: Epoxy zinc-nplua nuj (yam tsawg kawg 70% zinc hmoov av los ntawm qhov hnyav) rau kev tiv thaiv cathodic
    • ‌Lub tsho nruab nrabTug: Epoxy huab hlau rau kev txhim kho kev thaiv thiab UV tiv taus
    • ‌lub tsho sab saum tojPolyurethane los yog fluoropolymer rau kev tiv thaiv tshuaj lom neeg thiab kev puas tsuaj
      Cov kab ke no ua tiav cov kev faib tawm ntawm C4–C5 (ISO 12944-2) rau kev lag luam thiab ntug dej hiav txwv.
  • ‌Nanocomposite thiab Smart CoatingsCov thev naus laus zis tshiab suav nrog:
    • ‌Cov epoxies uas muaj graphene ntau ntxivuas txo qhov permeability rau dej thiab chlorides los ntawm >40%
    • ‌Cov khoom ntxiv Nano-ZnO lossis TiO₂uas txhim kho UV stability thiab nws tus kheej ntxuav cov khoom
    • ‌Cov tshuaj tiv thaiv polyphenol ntuj(piv txwv li, tannic acid) ua cov khoom tsis muaj tshuaj lom, hloov pauv tau biodegradable rau chromates

  ‌Kev xaiv thiab tsim khoom‌

  • ‌Corrosion-Resistant AlloysSiv cov khoom siv txuas hlau tsis xeb (qib A2 lossis A4) hauv cov chaw muaj chloride ntau kom tsis txhob muaj xeb galvanic thaum sib cuag nrog cov hlau carbon.
  • ‌Tsis txhob kov cov hlau sib txawv‌: Cais cov pob qij txha hlau ntawm cov khoom txhuas lossis tooj liab siv cov gaskets insulating lossis coatings kom tiv thaiv kev sib txuas galvanic.
  • ‌Tsim rau Kev Nqus Dej thiab Kev NtxuavTshem tawm cov qhov tawg thiab cov chaw kab rov tav uas dej lossis cov kua nplaum pob zeb tuaj yeem sib sau ua ke. Siv cov phaj txuas uas nqes thiab cov ntsia hlau qhib kom yooj yim yaug.

  ‌Cov Txheej Txheem Kev Tsim Kho thiab Tom Qab Siv‌

  • ‌Kev Ntxuav Tom Qab Ncuav Tam Sim NtawdSiv cov dej siab heev (≤150 bar) los tsuag cov pob zeb uas seem hauv 2 teev tom qab siv cov tshuaj tsuag. Tsis txhob siv cov tshuaj txhuam uas ua rau cov txheej tiv thaiv puas.
  • ‌Kev Khaws Cia Khoom Uas Tswj Tau‌: Khaws cov khoom rau hauv qhov chaw qhuav, muaj cua nkag nrog cov tshuaj desiccants. Siv cov npog tiv thaiv kom tsis txhob muaj dej noo thiab ntsev tso rau hauv.
  • ‌Kev Rov Txheej Txheej Dua Raws SijhawmTom qab txhua 50-70 lub voj voog, xyuas kom meej tias cov xim pleev yog xim zoo. Rov pleev cov xim pleev thawj thiab cov xim pleev sab saud rau thaj chaw uas raug lossis puas lawm ua ntej siv dua.

  ‌Kev Soj Ntsuam thiab Cov Txuj Ci Siab Tshaj Plaws‌

  • ‌Kev Tiv Thaiv Cathodic (Sacrificial Anode)‌: Txuas cov zinc lossis aluminium anodes rau cov formwork loj, uas tau teeb tsa tas mus li (piv txwv li, cov choj piers) los muab kev tiv thaiv electrochemical tas mus li.
  • ‌Kev saib xyuas corrosion‌: Tso cov sensors electrochemical (piv txwv li, EIS - Electrochemical Impedance Spectroscopy) ntawm cov pob qij txha tseem ceeb kom pom cov pitting lossis txheej txheej delamination thaum ntxov. Cov txheej txheem zoo li‌PERI's SmartFormworkkev sib txuas cov ceeb toom xeb hauv lub sijhawm tiag tiag nrog kev teem sijhawm txij nkawm raws li huab.
  • ‌Cov Txheej Txheem Kho Tus Kheej‌: Cov qauv kuaj hauv chav kuaj siv cov microcapsules uas muab tso rau hauv cov txheej uas tso tawm cov tshuaj tiv thaiv xeb thaum muaj kev puas tsuaj rau lub cev (piv txwv li, los ntawm kev zawm lub bolt lossis kev cuam tshuam). Txawm hais tias tseem tsis tau siv dav, lawv qhia txog kev cog lus rau kev siv lub voj voog siab.

  ‌Ua raws li International Standards‌

  • ‌ISO 12944-5: 2018‌: Txhais cov kev xaiv xim raws li kev xeb ib puag ncig (C1–CX) thiab qhov yuav tsum tau ua kom ruaj khov (qis, nruab nrab, siab).
  • ‌ISO 16276-2: 2025‌: Qhia meej txog cov txheej txheem sim kev nplaum (txiav hla, X-txiav) los xyuas kom meej tias cov xim pleev xim ua haujlwm li cas.
  • ‌EN 1090-2‌: Yuav tsum muaj Execution Class EXC2 lossis siab dua rau cov formwork systems uas raug kev thauj khoom cyclic thiab kev raug ib puag ncig.

  Cov kev ntsuas no, thaum siv ua ib qho kev sib koom ua ke, tuaj yeem ua rau lub neej ua haujlwm ntawm cov pob qij txha hlau ntev dua 150 lub voj voog thaum tswj hwm kev ruaj khov thiab kev nyab xeeb.