Haeba re ne re ka re konkreite ke thepa ea mohaho e tsebahalang ka ho fetisisa le e tloaelehileng lefatšeng, ho ne ho ke ke ha e-ba le likhang. Konkreite ke thepa e sebelisoang ka ho fetisisa lefatšeng, ea bobeli ho metsi.
Fiber Reinforced Concrete ke e 'ngoe ea lintlafatso tse ngata tse ntlafalitsoeng ho ntlafatsa litšobotsi tsa matla le lisebelisoa tse ling tsa konkreite.
Sehloohong sena, re tla hlahloba konkreite e matlafalitsoeng ka fiber, hore na konkreite ena ke eng, mefuta ea eona e fapaneng, le melemo, 'me re fumane hore na motsoako ona oa konkreite o nepahetse ho uena.
Ke engFiberKonkreite e Matlafalitsoeng?
Konkreite e matlafalitsoeng ka fiber (FRC) ke konkreite e ncha e matlafalitsoeng ka lisebelisoa tsa fiber. Ka mohlala, likhoele tse telele tsa tšepe. Mokhoa ona oa ho matlafatsa o ntlafatsa thepa ea konkreite e tloaelehileng.
Lisebelisoa tse ngata tse fapaneng tsa fiber li sebelisoa ho etsa konkreite e matlafalitsoeng ka fiber. Mofuta ona oa konkreite e matlafalitsoeng o se o tumme hoo mefuta e fapaneng ea konkreite e matlafalitsoeng e hlahisoang ho latela litlhoko tsa kopo.
Fiber Reinforced Concrete e Entsoe ka Eng?
Metsoako ea mantlha ea konkreite e matlafalitsoeng ke fiber ke:
Samente ea Hydraulic
Karolo e ka sehloohong ea konkreite e matlafalitsoeng ka fiber ke samente ea hydraulic, e fetohang sekhomaretsi ka mor'a ho itšoara ka metsi. Hangata, samente ea Portland e sebelisoa e le samente ea hydraulic ka konkreite e matlafalitsoeng ka fiber.
Likhoele
Ho eketsa likhoele tse telele ho fetola thepa ea konkreite e ncha ho latela mofuta oa thepa e sebelisoang. Ho na le mekhahlelo e mene ea likhoele tse sebelisoang ka kakaretso ho hlahisa konkreite e matlafalitsoeng ka likhoele. Li-fibers tsena tsa konkreite ke:
Likhoele tsa tšepe
Likhoele tsa khalase
Likhoele tsa maiketsetso
Likhoele tsa tlhaho
Aggregates
Aggregate e fana ka matla a tlamang ka konkreite ha e ntse e fokotsa bongata ba samente e hlokahalang. Likarolo tse ling tse tloaelehileng ke lehlabathe, majoe a pshatlehileng le lehlohlojane.
Histori e Khutšoanyane ea FRC
FRC esale e le teng ka nako e telele, empa likhoele tsa konkreite li ntlafalitsoe. Mehleng ea khale, ha mehaho e ne e hahuoa ka majoe, seretse se ne se etsa hore e kopane. Seretse se ne se matlafalitsoe ho sebelisoa moriri oa lipere.
Ka ho tšoanang, tabeng ea kaho ea litene tsa seretse, joang e ne e le eona ntho e ka sehloohong e matlafatsang. Ha konkreite e fetoha e 'ngoe ea thepa e tloaelehileng ea ho haha, likhoele tsa asbestos li ne li sebelisoa e le matlafatso.
Leha ho le joalo, ha lilemo tse mashome li ntse li tsoela pele, batho ba ile ba hlokomela haholoanyane likotsi tsa bophelo bo botle ba asbestos le kamoo e bakang kankere kateng. Lilemong tsa bo-1960, sebakeng sa asbestos, likhoele tse ling tse kang tšepe le khalase li ile tsa tuma.
Phello ea Lithapo ho Konkreite?
Ho eketsa likhoele ho konkreite ho fella ka litlamorao tse 'maloa. Boholo ba tsona bo fapana ho latela likhoele tse itseng tse sebelisoang. Ntlafatso ea matla a ho jara mojaro e itšetlehile ka lintlha tse fapaneng, tse kang palo ea likhoele tse matlafatsang mabapi le molumo oa kakaretso, o bitsoang karoloana ea molumo, le karolo ea likarolo, e fumanoang ka ho arola bolelele ba fiber ka bophara ba fiber eo ho buuoang ka eona.
Li-fibers ka kakaretso li sebeletsa sepheo sa mantlha sa ho fokotsa ho phatloha ha konkreite ka ho ntlafatsa matla a eona a ho fetoha. Ho phunyeha ha konkreite ho etsahala ka lebaka la ho fokotseha ha konkreite. Ho fokotseha ha konkreite ho ka etsahala ka mabaka a mangata, joalo ka ho omisa shrinkage le shrinkage ea polasetiki.
Hape, likhoele li theola ho kenella ha konkreite, ho felisa monyetla oa hore metsi a tsoe ka meaho ea konkreite.
Mefuta e fapaneng ea Fiber Reinforced Concrete ke efe?
Ho na le mefuta e fapaneng ea likhomphutha tsa konkreite tse matlafalitsoeng lits'ebetsong tse tsebahalang. Tse ling tsa tsona li kenyelletsa:
Tšepe Fiber e Matlafalitsoeng ka Konkreite
Konkreite e matlafalitsoeng ka tšepe ea tšepe ke e 'ngoe ea mefuta e atileng haholo ea FRC. Ho eketsa likhoele tsa tšepe tse matlafatsang konkreite, esita le ka chelete e nyane, ho lebisa ntlafatsong e kholo ea thepa ea konkreite.
Konkreite e matlafalitsoeng ka tšepe e sebelisoa lits'ebetsong tse nang le litlhoko tse boima tsa konkreite tse kang marokho, mekato, lithanele, merafo, li-precasts, joalo-joalo.
Ho na le mefuta e mengata e fapaneng ea likhoele tsa tšepe tse sebelisetsoang ho tiisa konkreite, joalo ka terata e huloang ke serame (Mofuta oa 1), likhoele tsa tšepe tse sehiloeng (Mofuta oa 2), tse ntšoang (Mofuta oa 3), leloala le sehiloeng (Mofuta oa 4), le serame se fetotsoeng. terata e huliloeng (Mofuta oa 5).
Polypropylene Fiber Reinforced Concrete (PFRC)
PFRC e sebelisa likhoele tsa maiketsetso tse bitsoang Polypropylene fibers, mofuta oa thermoplastic. Ho na le melemo e mengata e fapaneng ea ho eketsa polypropylene ho konkreite, eo re tla e tšohla karolong e latelang.
Polypropylene e arolelana litšobotsi tse ngata le polythene, e nang le thepa e thata e ntlafalitsoeng, matla a flexural, le ho hanyetsa mocheso o phahameng.
Ho feta moo, fiber ena e na le khanyetso e phahameng khahlanong le lik'hemik'hale tse kang li-acids le li-solvents, 'me e fana ka thepa e tšoanang le konkreite.
Glass Fiber Reinforced Concrete (GFRC)
Motsoako oa konkreite o matlafalitsoeng ka khalase o kenyelletsa likaroloana tse ngata tse nyane tsa khalase. Ke joang tsee li etsang hore konkreite e be matla?
Le ha phanele e kholo ea khalase e le bonolo, fiber ea khalase e na le matla a holimo haholo a sebopeho. Ho phaella ho matla ana, likhoele ke tlatsetso e theko e tlaase, e etsang hore motsoako oa ho qetela oa konkreite o theko e tlaase ho feta mekhoa e meng e kang fiber fiber e matlafalitsoeng ka konkreite.
Likhoele tse tšoanang tse kenyellelitsoeng polasetiking li etsa hore ho be le thepa e kopaneng ea fiberglass e nang le thepa e matla ea ho tsitsa.
Polyester Fiber e Matlafalitsoeng ka Konkreite
Likhoele tsa polyester tsa konkreite e matlafalitsoeng li fumaneha joalo ka li-microfibers le macro fibers. Likhoele tsa polyester li kenya letsoho ho ntlafatseng ho hanyetsa ha mofuta ona oa konkreite e matlafalitsoeng ka fiber.
Polyester fiber e matlafalitsoeng konkreite e na le ho tiea ho hoholo le botšepehi bo phahameng ba sebopeho. Ho tšoarella ha eona ho matlafalitsoeng ho etsa hore mofuta ona oa konkreite e be o loketseng mokatong oa liindasteri, mokatong oa polokelo ea thepa, meaho ea precast, likoahelo, le lits'ebetso tse tšoanang tsa khoebo.
Carbon Fiber e Matlafalitsoeng ka Konkreite
Na u kile ua utloa ka tšepe ea carbon fiber? Khopolo e tšoana le ea carbon fiber reinforced concrete.
Le hoja ho eketsa carbon fiber ho konkreite ke mokhoa o rarahaneng ho feta ho eketsa samente kapa khalase, konkreite e hlahisoang e na le ho tiea le matla a phahameng. Leha ho le joalo, ka ho tiea ho hoholo, konkreite e fetoha brittle haholoanyane (joaloka tšepe ea carbon).
Macro Synthetic FiberKonkreite e Matlafalitsoeng
Ho sebelisa likhoele tsa macro synthetic ka konkreite ho ile ha hlaha e le mokhoa o mong oa ho matlafatsa tšepe. Ha e le hantle, ho matlafatsa tšepe e ka ba tlatsetso e theko e boima ho konkreite.
Ka tšebeliso e ntseng e hola, likhoele tsa macro synthetic e ile ea e-ba ntho e fetang feela mokhoa o mong. Likhoele tsena li na le lisebelisoa tse ngata tsa tsona, haholo-holo meahong e tšehelitsoeng fatše.
Matla a matla a tšepe a ka 'na a hola libakeng tse nang le mongobo o phahameng, joalo ka tikoloho ea leoatle,' me likhoele tsa khalase li na le kotsi ea ho phatloha. Macro synthetic fibers e fana ka khanyetso e phahameng ho lintlha tsena, kahoo ke tlatsetso ea bohlokoa ho konkreite libakeng tsena.
Fibre ea Tlhaho e Matlafalitsoeng ke Konkreite
Likhoele tsa tlhaho li tsoa limela, liphoofolo le liminerale tsa tlhaho. Joalokaha re boletse karolong e mabapi le nalane ea FRC, likhoele tsa tlhaho li 'nile tsa sebelisoa ts'ebetsong ea kaho ho tloha mehleng ea khale.
Ho sa tsotellehe hore na konkreite e sebelisoa hokae, ho tla ba le likhoele tse ngata tsa tlhaho tse teng. Likhoele tsena li boetse li thusa ho theola litšenyehelo tsa ho etsa FRC.
Likhoele tse ling tsa tlhaho li akarelletsa k'hothone, joang, lehong le lijo-thollo.
Melemo ea ho Sebelisa Fiber Reinforced Concrete ke Efe
Ho kenyelletsa likhoele tse fapaneng ho konkreite ho hlahisa melemo e fapaneng. Konkreite e matlafalitsoeng ka fiber e arotsoe ho latela fiber e kentsoeng. Melemo e khethehileng ea FRC e tla ipapisa le mofuta oa FRC o sebelisitsoeng.
Ka kakaretso, mona ke melemo e amanang le mefuta e meng e tloaelehileng ea konkreite e matlafalitsoeng ka fiber:
Glass Fiber Reinforcement
Matlafatso ea fiber ea khalase e eketsa matla a sebopeho sa konkreite ntle le ho eketsa litšenyehelo haholo. Khalase ke e 'ngoe ea lisebelisoa tsa fiber tse theko e tlaase.
Mofuta ona oa ho matlafatsa o sebelisetsoa ho matlafatsa boipiletso bo botle ba sebopeho sa konkreite. Likhoele tse khutšoanyane tsa discrete li ka bonoa mohahong oa konkreite ka mor'a hore o ome.
Mokhoa ona oa ho matlafatsa o eketsa matla a matla libakeng tsohle, ho fapana le ho matlafatsa setso ho sebelisa mekoallo ea tšepe, moo matla a matla a fokolang a lekanyelitsoeng ho tataiso ea mekoallo.
Tšepe Fiber Reinforcement
Tšepe e fana ka matla a phahameng ka ho fetisisa a sebopeho ka konkreite e matlafalitsoeng ka fiber.
Ka ho eketsoa ha likhoele tsa tšepe, konkreite e hloka li-reinforcements tse fokolang tsa tšepe.
Li-fibers li hlahisa khanyetso e kholo khahlanong le litlamorao le mahlaba.
Ntlafatso ea ho hanyetsa ho qhibiliha le litšobotsi tse ling tsa mocheso oa mohaho.
E fokotsa kotsi ea ho petsoha ka ho fokotsa bophara ba mapetsong.
Likhoele tsa Polypropylene le Matlafatso ea Konkreite ea Nylon
E fana ka bokhoni ba ho pompa konkreite sebakeng se selelele ka ho eketsa thepa ea momahano.
E ntlafatsa litšobotsi tsa mocheso (mohlala, thaw resistance).
E ntlafatsa ductility ea konkreite mme e fokotsa sebopeho sa eona sa brittle.
Ha ho chesoa mollo, meaho ea konkreite e nang le likhoele tsa polypropylene le likhoele tsa nylon li hanana le ho phatloha ho hoholo.
E fella ka ho hanyetsa tšusumetso e phahameng le ho hanyetsa abrasion.
Lisebelisoa tsa Fiber Reinforced Concrete ke Life?
Mofuta oa FRC o sebelisitsoeng o ka fapana ho latela morero o itseng oa kaho. Ka kakaretso, merero e mengata ea boenjiniere ba sechaba e sebelisa FRC. Ka mohlala::
Mabota
Bokaholimo
Matamo
Lipalangoang
Litsela
Liphaephe tsa konkreite
Borokho
Mabato a polokelo
Mekoti
Lithanele
Likatoana
Mokhoa oa ho Fumana Fiber e Matlafalitsoeng ka Konkreite?
Joalo ka ha u tseba hajoale, konkreite e matlafalitsoeng ka fiber ha se sehlahisoa se le seng. Ho na le li-concrete tse fapaneng tse nang le mekhoa e fapaneng ea ho matlafatsa e hlahisang thepa e khethehileng e ntlafalitsoeng.
Ho na le likhoele tse matla tsa tšepe tse matla tse matlafatsang botšepehi ba sebopeho sa manifold a konkreite. Hape, likhalase le lisebelisoa tsa maiketsetso tsa fiber li fana ka matla a itekanetseng empa ka theko e tlaase.
KA Daniel Arkin
Nako ea poso: Apr-07-2023