Ikirahuri gikoreshwa mugukora fibre yikirahure itandukanye nibindi bicuruzwa byibirahure. Ikirahuri gikoreshwa kuri fibre zamamajwe ku isi kigizwe na silika, alumina, okiside ya calcium, okiside ya boron, oxyde ya magnesium, sodium oxyde, n'ibindi ukurikije ibirimo alkali biri mu kirahure, irashobora kugabanywamo fibre yubusa ya alkali . alkali ikirahure fibre (hejuru ya 13% oxyde ya sodium ni iy'ikirahuri cya sodium calcium).
1. E-ikirahure, kizwi kandi nka alkali ikirahure cyubusa, ni ikirahuri cya borosilike. Ikirahuri gikoreshwa cyane muri fibre yikirahure gifite amashanyarazi meza hamwe nubukanishi. Ikoreshwa cyane mugukora fibre yibirahure kugirango amashanyarazi hamwe nibirahuri bya FRP. Ikibi cyayo nuko byoroshye kurandurwa na acide organique, bityo ntibikwiye kubidukikije.
2. Mubisanzwe, fibre yo mu mahanga ya alkali yo mu bwoko bwa fibre irimo urugero runaka rwa boron trioxide, mugihe Ubushinwa bwo hagati bwibirahuri bya alkali butarimo boron na gato. Mu bihugu by'amahanga, fibre yo hagati ya alkali ikoreshwa gusa mu gukora ibicuruzwa byangiza ibirahure byangirika, nk'ibirahure bya fibre, kandi bikoreshwa no gushimangira ibikoresho byo gusakara asfalt. Nyamara, mu Bushinwa, fibre yo hagati ya alkali fibre irenga kimwe cya kabiri (60%) yumusaruro wa fibre yikirahure kandi ikoreshwa cyane mugushimangira FRP no gukora imyenda ya filteri hamwe nigitambara gihuza, Kuberako igiciro cyacyo kiri munsi yibyo ya alkali yubusa ibirahuri fibre, ifite irushanwa rikomeye.
3. Imbaraga nyinshi zikirahure fibre irangwa nimbaraga nyinshi na modulus ndende. Imbaraga zayo imwe ya fibre tensile ni 2800mpa, ikaba iri hejuru ya 25% kurenza iy'ibirahuri bya alkali yubusa, kandi modulus yayo ya elastique ni 86000mpa, ikaba isumba iy'ibikoresho bya E-ibirahure. Ibicuruzwa bya FRP byakozwe nabo ahanini bikoreshwa mubikorwa bya gisirikare, umwanya, ibirwanisho bitagira amasasu nibikoresho bya siporo. Nyamara, kubera igiciro kiri hejuru, ntishobora kwamamara mugukoresha abaturage, kandi umusaruro wisi ni toni ibihumbi.
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5. Ikirahure, kizwi kandi nk'ikirahure kinini cya alkali, ni ikirahuri gisanzwe cya sodium. Ntibikunze gukoreshwa mu gukora fibre y'ibirahure kubera kutarwanya amazi.
6. Kurwanya amazi kwayo gukubye inshuro 7 ~ 8 kurenza iy'ibirahuri byubusa bya alkali, kandi irwanya aside iruta cyane iy'ibirahuri bya alkali yo hagati. Nubwoko bushya bwatunganijwe byumwihariko kumiyoboro yo munsi y'ubutaka n'ibigega byo kubikamo.
7. Ikirahuri D, kizwi kandi nk'ikirahure gito cya dielectric, gikoreshwa mu gukora fibre nkeya ya dielectric fibre ifite imbaraga nziza za dielectric.
Usibye ibice bya fibre byavuzwe haruguru, fibre nshya ya alkali yubusa yagaragaye mumyaka yashize. Ntabwo irimo boron na gato, kugirango igabanye kwanduza ibidukikije, ariko amashanyarazi yayo hamwe nubukanishi bisa nibirahuri bya E. Mubyongeyeho, hari ubwoko bwa fibre fibre ifite ibirahuri bibiri, byakoreshejwe mugukora ubwoya bwikirahure. Bavuga ko nayo ifite ubushobozi nko gushimangira FRP. Byongeye kandi, hari fibre idafite ibirahuri bya florine, ikaba ari fibre nziza ya alkali yubusa yakozwe mubisabwa kurengera ibidukikije.
Igihe cyo kohereza: Nzeri-02-2021