Nazari akan aikin mannewa na basalt fiber ƙarfafa kayan siminti tare da tendons BFRP
Mahimman abubuwan da ke tasiri na aikin haɗin gwiwa
- Doping ƙarar fiber da tsayi
Adadin doping na Basalt yarn gajeren gajere yana da tasiri mai mahimmanci akan ƙarfin haɗin gwiwa, kuma gwajin ya nuna cewa ƙarar doping na 0.2% yana da mafi kyawun tasiri akan haɓaka ƙarfin haɗin gwiwa, kuma wuce gona da iri na iya haifar da raguwar aiki saboda haɓakar fiber.
Tsawon fiber (misali 6mm da 18mm) yana da ƙarancin tasiri akan ƙarfin haɗin gwiwa, amma gajarta zaruruwa suna da sauƙin tarwatsewa don rage lahani tsakanin fuskoki.
- Ajin ƙarfi na siminti da aka sake yin fa'ida
Ƙara ƙarfin ƙarfin simintin da aka sake yin fa'ida (misali, daga C30 zuwa C40) yana haɓaka ƙarfin haɗin gwiwa tsakanin BƘarfafa Frp da substrate, amma karuwa yana da iyaka, kuma haɗin gwiwar yana da saukin kamuwa da bawo lokacin da ƙarfin ƙarfin ya yi yawa.
- Maganin mu'amala da wakili mai haɗawa
Sandblasting saman Farashin BFRP ƙarfafawa zai iya ƙara ƙazanta kuma inganta ƙarfin cizon inji; ƙara silane coupling agent zai iya inganta haɗin gwiwar sinadarai tsakanin fiber da resin matrix da kuma rage zamewar fuska.
Gwaje-gwaje da hanyoyin hanyoyin mannewa
- Gwajin fitar da cibiyar
An yi nazarin lankwasa-slip-slip ta hanyar gwajin cirewa, kuma an gano cewa yanayin lalacewar haɗin gwiwa ya fi jan hankali ne ko tsagewar kankare. Bugu da kari na basalt fibers zai iya jinkirta gaggautsa lalacewar kankare da haɓaka ductility.
Matsakaicin ƙarfin haɗin gwiwa na yau da kullun shine 6-12 MPa, kuma ƙayyadaddun ƙimar yana shafar adadin fiber, diamita na ƙarfafawa (misali, 16 mm) da tsarin kulawa da dubawa.
- Tsarin rarraba damuwa na Bond
An rarraba danniya na haɗin gwiwa ba tare da layi ba tare da tsawon ƙarfin ƙarfafawa, kuma damuwa mafi girma yana mayar da hankali a ƙarshen ƙaddamarwa. Samfurin ka'idar yana buƙatar yin la'akari da juriya na tsattsauran ra'ayi da tasirin juzu'i na simintin ƙarfafa fiber.
Amfanin aikace-aikacen da shari'ar injiniya
- Juriya na lalata da karko
Ƙarfafa BFRP yana riƙe da fiye da kashi 90% na ƙarfin haɗin gwiwa a cikin mahallin ion chloride (misali, injiniyan ruwa), wanda ya fi ƙarfin ƙarfe da sandunan ƙarfafa fiberglass.
Halin da ake ciki: Gadar Qingdao Cross-Sea Bridge ta ɗauki ƙarfin BFRP don maye gurbin ƙarfafa ƙarfin ƙarfe, kuma an tsawaita tsawon rayuwarsa zuwa fiye da shekaru 100.
- Ɗaukar nauyi da Ayyukan Seismic
Yawan ƙarfin ƙarfafa BFRP shine kawai 1/4 na na karfe, wanda za'a iya amfani dashi don ƙarfafa katako na katako don rage nauyin tsarin da kashi 20% -30%, kuma a lokaci guda haɓaka ƙarfin amfani da makamashi na seismic ta hanyar nannade ƙarfafawa.
Kalubalen da ake da su da Jagoran Ingantawa
- Ƙarfafa haɗin kai
Matsala mai wanzuwa: Ma'amala tsakanin zaruruwa da siminti matrix yana da saurin kwasfa saboda tattarawar damuwa, kuma ana buƙatar haɓaka nano-SiO₂ abubuwan haɗin kai (misali, nano-SiO₂ doped) don haɓaka haɗin sinadarai.
- Ayyukan dogon lokaci da daidaitawa
Rashin bayanan rarrafe na dogon lokaci a ƙarƙashin babban zafin jiki da zafi mai yawa (misali, fiye da shekaru 10), ana buƙatar gwaje-gwajen saurin tsufa don tabbatarwa; Ƙayyadaddun ƙayyadaddun ƙira har yanzu ba su zama daidai ba a duk faɗin ƙasashe, kuma ko da yake China ta fitar da ma'aunin GB/T 38143-2019, har yanzu ana buƙatar haɓaka ƙa'idodin ƙira dalla-dalla.
- Ƙirar haɗin gwiwa da yawa
A nan gaba, za mu iya gano da matasan fasahar na Farashin BFRP ƙarfafawa da karfe fiber / carbon fiber don gina gradient composites da daidaita ƙarfi da ductility.
Jagoran Bincike na gaba
- Saka idanu mai hankali da ƙirar dijital
Haɗe-haɗe na firikwensin fiber optic a cikin tendons BFRP, saka idanu na gaske na nau'in haɗin haɗin haɗin gwiwa da haɓaka haɓaka, haɗe tare da ƙayyadaddun simulation don haɓaka ƙira.
- Low-carbon shiri tsari
Rage narkewar fiber na basalt da zafin zafin jiki (a halin yanzu 1400-1500 ℃), haɓaka ƙarancin zafin jiki don rage yawan kuzari.
- Ingantacciyar amfani da kayan da aka sake fa'ida
Haɗa tarawar da aka sake yin fa'ida da fiber na basalt tare da sharar gini don haɓaka tsarin kayan gini na "dukkan sabuntawa" da rage yawan amfani da albarkatu.
Takaitawa
Binciken akan aikin haɗin gwiwar kayan aikin siminti mai ƙarfi na basalt fiber da Farashin BFRP tendons sun sami sakamako-mataki-mataki, amma aikace-aikacensa mai girma har yanzu yana buƙatar ƙetare kwalabe na inganta haɗin fuska, tabbatar da tsayin daka na dogon lokaci da daidaitaccen ƙira. A nan gaba, ta hanyar gyare-gyaren gyare-gyare da yawa (misali, kayayyaki masu wayo, matakai masu ƙarancin carbon), ana sa ran za a sami ci gaban fasaha a fagen aikin injiniyan ruwa da ƙarfafa girgizar ƙasa, da kuma taimakawa ci gaban gine-gine masu ɗorewa.
