Kev tshawb fawb txog cov fibers basalt hauv kev siv engineering civil
1. Cov lus qhia tseem ceeb rau daim ntawv thov
- Cov ntaub ntawv txhawb nqa pob zeb
Cov Pob Zeb Ua Los Ntawm Fiber (BFRC): Kev Txiav Luv Basalt Fibers (6-24mm) raug sib xyaw rau hauv cov pob zeb ua vaj tse (qhov sib tov 0.1%-0.5%), uas tuaj yeem txhim kho qhov tsis kam ntawm qhov tawg (txo qhov dav ntawm qhov tawg los ntawm 30%-50%), kev tiv thaiv kev cuam tshuam (nce 2-3 zaug), thiab kev ruaj khov (kev tiv thaiv kev khov-thaw nce 40%).
Kev hloov cov hlau txhawb nqa: Hauv cov chaw muaj xeb (piv txwv li kev tsim kho dej hiav txwv), basalt fiber reinforcing bars (Cov tuav BFRP) tuaj yeem hloov cov hlau txhawb kom tsis txhob muaj teeb meem xeb. Piv txwv li, kev siv bfrp Kev txhawb nqa ntawm cov ncej ntawm tus choj hla dej hiav txwv hauv Qingdao yuav txuas nws lub neej mus txog ntau dua 100 xyoo.
- Kev txhawb nqa thiab kho cov qauv
Kev Txhawb Nqa Fiber Cloth/Mesh: Cov ntaub basalt fiber (lub zog tensile ≥2000MPa) tau muab lo rau ntawm qhov chaw ntawm cov ntoo thiab cov kem, uas tuaj yeem ua rau lub peev xwm nqa khoom nce ntxiv 20% -30%. Piv txwv li, tom qab lub choj qub hauv Sichuan tau txhawb nqa nrog daim ntaub BF, qhov ntsuas thauj khoom tau hloov kho los ntawm Highway-II mus rau Class I.
Kev txhawb nqa av qeeg: cov khoom sib xyaw ua los ntawm cov fiber ntau (BFRP) cov kem pob zeb qhwv, uas tuaj yeem ua kom lub zog thiab lub zog siv ntau dua, thiab tsim nyog rau cov tsev nyob rau hauv thaj chaw uas muaj av qeeg.
- Cov qauv sib xyaw ua ke tshiab
Cov vaj huam sib luag basalt fiber-polymer sandwich: siv rau cov ru tsev sib dua thiab cov phab ntsa faib, nrog ob qho tib si muaj zog thiab rwb thaiv tsev thermal (thermal conductivity ≤ 0.05 W / mK).
Cov ntaub ntawv siv rau kev tsim kho 3D: basalt fiber-cov ntaub ntawv cementitious uas muaj zog tuaj yeem ua tiav cov qauv luam ntawv nyuaj thiab txo cov khib nyiab tsim kho.
2. Cov Kev Zoo thiab Cov Ntaub Ntawv Tseem Ceeb
| Cov Cim Qhia Kev Ua Tau Zoo | Cov fiber basalt | Cov khoom sib piv (iav fiber) |
| Lub zog tensile | 3000-4800 MPa | 2000-3500 MPa |
| Kev tiv thaiv alkali (pH = 13) | Lub zog khaws cia ≥90% | Iav fiber: lub zog khaws cia ≤ 50% |
| Cov txiaj ntsig ib puag ncig: kev siv hluav taws xob tsuas yog 30% ntawm cov iav fiber, thiab tuaj yeem rov ua dua 100%. | ||
3. Kev Tshawb Fawb Txog Kev Nce Qib thiab Cov Xwm Txheej Ib Txwm Muaj
- Kev tshawb fawb hauv tebchaws
Tsev Kawm Ntawv Qib Siab Tsinghua: tau tsim cov pob zeb basalt fiber-nano-silica composite modified concrete uas muaj zog compressive nce 25% thiab txo qhov permeability ntawm chloride ion 60%.
Tsev Kawm Ntawv Qib Siab Sab Qab Teb: tau tshaj tawm BF/epoxy resin laminate reinforced reinforced concrete beam technology, lub neej qaug zog ntev dua 3 zaug.
- Daim ntawv thov thoob ntiaj teb
Nyiv Pooj: Tom qab av qeeg Hanshin, lub tsev siab hauv Osaka tau siv BF mesh reinforced shear wall, thiab kev ua haujlwm ntawm av qeeg tau zoo dua 40%.
Tebchaws Europe: Cov pob zeb ua los ntawm BF reinforced concrete tau siv rau hauv cov rooj vag tswj dej nyab hauv Venice, Ltalis, nrog lub neej ntev txog 50 xyoo tiv thaiv kev yaig dej hiav txwv.
- Cov Ntaub Ntawv Engineering
Choj Tuam Tshoj - Hong Kong-Zhuhai-Macao: Cov fiber basalt cov khoom sib xyaw ua ke yog siv rau hauv txheej tiv thaiv xeb ntawm qee lub piers, txo cov nqi txij nkawm los ntawm 30%.
Tebchaws Meskas - San Francisco Bay Area Rapid Transit (BART): Cov ntaub BF siv rau hauv kev txhawb nqa qhov av, thiab qhov kev tiv thaiv deformation tau nce ntxiv 25%.
4. Tej Yam Nyuaj thiab Cov Lus Qhia Yav Tom Ntej
- Cov teeb meem uas twb muaj lawm
Kev ua haujlwm tsis txaus ntawm kev sib txuas ntawm cov fiber thiab cov pob zeb / cov resin yog qhov yooj yim rau kev rhuav tshem, cov neeg sawv cev txuas tshiab (piv txwv li, silane modifiers) yuav tsum tau tsim.
Tsis muaj cov ntaub ntawv ua tau zoo mus sij hawm ntev: cov yam ntxwv ntawm BF reinforcement nyob rau hauv qhov kub thiab txias thiab av noo siab (ntau tshaj 10 xyoo ntawm cov ntaub ntawv tseem tsis zoo tag nrho).
Kev sib xws ntawm tus qauv system: cov qauv tsim qauv rau cov ntaub ntawv BF hauv ntau lub tebchaws tseem tsis tau tsim tiav (Tuam Tshoj tau tso tawm GB / T 38143-2019, tab sis cov ntsiab lus ntawm daim ntawv thov yuav tsum tau ua kom zoo).
- Kev tshawb nrhiav yav tom ntej
Cov khoom sib xyaw ua ke ntawm cov fiber ntse: cov sensors uas muab tso rau hauv kom ua tiav kev saib xyuas kev noj qab haus huv ntawm cov qauv (piv txwv li, kev ntxhov siab, kev paub txog qhov tawg).
Kev siv tshuab ua kom ntsuab: txo qhov kub yaj thiab qhov kub kos duab (tam sim no xav tau 1400-1500 ℃), thiab tsim cov txheej txheem qis-carbon.
Kev txhawb nqa ntau qhov sib xyaw ua ke: sib xyaw nrog carbon fiber thiab steel fiber los tsim cov khoom sib xyaw gradient.
5. Cov Lus Qhia Luv Luv
Daim ntawv thov ntawm basalt fiber Hauv kev tsim kho vaj tse tau hloov ntawm chav kuaj mus rau kev xyaum ua haujlwm engineering, thiab nws cov yam ntxwv pheej yig thiab tus phooj ywg ib puag ncig haum rau qhov kev thov rau cov tsev ntsuab raws li lub hom phiaj ntawm "dual-carbon". Yav tom ntej, nws yog qhov tsim nyog los tawg los ntawm kev ua kom zoo dua ntawm qhov interface, kev txheeb xyuas lub sijhawm ntev thiab lwm yam thev naus laus zis tseem ceeb, thiab tib lub sijhawm txhawb kev txhim kho ntawm cov qauv tsim thiab kev sib koom ua ke ntawm cov saw hlau, txhawm rau kom ua kom nws daim ntawv thov loj hauv cov khoom siv loj, kev tsim kho hauv hiav txwv, av qeeg thiab kev tiv thaiv kev puas tsuaj thiab lwm yam xwm txheej.
