Qhov Cuam Tshuam ntawm Fiberglass rau Kev Tiv Thaiv Kev Yaig ntawm Cov Pob Zeb Rov Siv Dua

Qhov cuam tshuam ntawm fiberglass rau qhov kev tiv thaiv kev yaig ntawm cov pob zeb ua los ...cov khoom siv txhawb zog, tuaj yeem txhim kho kev ua tau zoo ntawm cov pob zeb rov ua dua tshiab los ntawm cov txheej txheem lub cev thiab tshuaj lom neeg. Nov yog kev tshuaj xyuas ntxaws ntxaws:

1. Cov Khoom thiab Kev Ua Haujlwm ntawmFiberglass

Fiberglass, ib yam khoom inorganic nonmetallic, muaj cov yam ntxwv hauv qab no:
Lub zog tensile siab: Them rau lub peev xwm tensile qis ntawm cov pob zeb.
Kev tiv thaiv xeb: Tiv taus cov tshuaj lom neeg tawm tsam (piv txwv li, chloride ions, sulfates).
Kev ua kom tawv thiab tiv taus qhov tawg**: Txuas cov kab nrib pleb me me kom ncua qhov tawg nthuav dav thiab txo qhov permeability.

2. Qhov Tsis Zoo ntawm Kev Ruaj Khov ntawm Cov Pob Zeb Rov Siv Dua

Cov pob zeb rov ua dua tshiab uas muaj cov cement seem uas muaj qhov dej nyob rau ntawm lawv qhov chaw ua rau:
Thaj chaw hloov pauv tsis muaj zog (ITZ): Kev sib txuas tsis zoo ntawm cov pob zeb rov ua dua tshiab thiab cov cement tshiab, tsim cov kev nkag tau.
Kev tsis nkag tau qis: Cov tshuaj lom neeg (piv txwv li, Cl⁻, SO₄²⁻) nkag mus tau yooj yim, ua rau cov hlau xeb lossis puas tsuaj loj heev.
Kev tiv thaiv khov-thaw tsis zoo: Kev nthuav dav ntawm dej khov hauv cov qhov hws ua rau tawg thiab tawg.

3. Cov txheej txheem ntawm Fiberglass hauv kev txhim kho kev tiv thaiv kev yaig

(1) Cov teebmeem ntawm lub cev tiv thaiv
Kev tiv thaiv kab nrib pleb: Cov fibers sib kis sib npaug txuas cov kab nrib pleb me me, thaiv lawv txoj kev loj hlob thiab txo cov kev rau cov neeg sawv cev erosive.
Kev ua kom compact dua: Cov fibers sau cov pores, txo cov porosity thiab qeeb qeeb ntawm cov tshuaj lom neeg.

(2) Kev Ruaj Ntseg Tshuaj
Fiberglass uas tiv taus alkali(piv txwv li, AR-iav): Cov fibers kho saum npoo tseem ruaj khov hauv cov chaw muaj alkali ntau, zam kev puas tsuaj.
Kev txhawb nqa ntawm qhov interface: Kev sib txuas ntawm cov fiber ntau thiab cov khoom sib txuas ua ke txo qhov tsis zoo hauv ITZ, txo cov kev pheej hmoo ntawm kev yaig hauv zos.

(3) Kev Tiv Thaiv Cov Hom Kev Ntxeem Tshwj Xeeb
Kev tiv thaiv Chloride ion: Kev tsim cov kab nrib pleb txo qis ua rau Cl⁻nkag qeeb, ncua kev xeb hlau.
Kev tiv thaiv kev tawm tsam ntawm sulfate: Kev loj hlob ntawm cov kab nrib pleb uas raug tswj hwm txo qhov kev puas tsuaj los ntawm kev sib xyaw ua ke ntawm sulfate thiab kev nthuav dav.
Kev ruaj khov-thaw: Kev ywj pheej ntawm cov fiber nqus tau kev ntxhov siab los ntawm kev tsim dej khov, txo qhov chaw tawg.

4. Cov Yam Tseem Ceeb Uas Cuam Tshuam

Cov tshuaj fiber ntau: Qhov zoo tshaj plaws yog 0.5% -2% (los ntawm qhov ntim); cov fiber ntau dhau ua rau muaj kev sib sau ua ke thiab txo qhov compactness.
Qhov ntev ntawm cov fiber thiab kev sib kis: Cov fiber ntev dua (12–24 hli) txhim kho kev tawv tab sis xav tau kev faib tawm sib xws.
Qhov zoo ntawm cov pob zeb rov ua dua tshiab: Kev nqus dej ntau lossis cov mortar seem ua rau kev sib txuas ntawm fiber-matrix tsis muaj zog.

5. Cov Kev Tshawb Fawb thiab Cov Lus Xaus Uas Siv Tau

Cov txiaj ntsig zoo: Feem ntau cov kev tshawb fawb qhia tau tias tsim nyogfiberglassKev ntxiv cov tshuaj no ua rau nws zoo dua qub rau kev tiv thaiv dej tsis nkag, tiv taus chloride, thiab tiv taus sulfate. Piv txwv li, 1% fiberglass tuaj yeem txo cov coefficients ntawm chloride diffusion los ntawm 20% -30%.
Kev ua tau zoo mus sij hawm ntev: Kev ruaj khov ntawm cov fibers hauv cov chaw alkaline yuav tsum tau saib xyuas. Cov txheej txheem alkali-resistant lossis cov fibers hybrid (piv txwv li, nrog polypropylene) txhim kho lub neej ntev.
Cov Kev Txwv: Cov khoom siv rov ua dua tshiab tsis zoo (piv txwv li, porosity siab, impurities) yuav txo cov txiaj ntsig ntawm fiber.

6. Cov Lus Qhia Txog Daim Ntawv Thov

Cov xwm txheej tsim nyog: Cov chaw nyob hauv dej hiav txwv, cov av ntsev, lossis cov qauv uas xav tau cov pob zeb ua dua tshiab uas ruaj khov.
Kev sib xyaw ua kom zoo dua: Sim cov tshuaj fiber ntau, qhov sib piv ntawm cov khoom siv rov ua dua tshiab, thiab kev sib koom tes nrog cov khoom ntxiv (piv txwv li, silica fume).
Kev tswj xyuas zoo: Xyuas kom meej tias cov fiber sib xyaw ua ke kom tsis txhob sib sau ua ke thaum sib tov.

Kev Txheeb Xyuas

Fiberglass ua rau cov pob zeb rov ua dua tshiab tsis kam yaig los ntawm kev ua kom lub cev tawv thiab tshuaj ruaj khov. Nws qhov ua tau zoo nyob ntawm hom fiber, qhov ntau npaum li cas, thiab qhov zoo ntawm cov khoom siv rov ua dua tshiab. Kev tshawb fawb yav tom ntej yuav tsum tsom mus rau kev ruaj khov mus sij hawm ntev thiab cov txheej txheem tsim khoom pheej yig los pab txhawb kev siv engineering loj.