Ukutadisha ngokusebenza kokunamathela kwe-basalt fiber okuqinisiwe kwe-cementitious materials nge-tendon ye-BFRP

Izici ezinomthelela omkhulu ekusebenzeni kwebhondi

1. I-Fiber volume doping nobude

Umthamo we-doping we I-Basalt intambo yesinqamuleli inomphumela obalulekile emandleni okubopha, futhi ukuhlolwa kukhombisa ukuthi umthamo we-doping ongu-0.2% unomphumela omuhle kakhulu ekuthuthukisweni kwamandla esibopho, futhi ukudotshwa ngokweqile kungase kuholele ekwehleni kokusebenza ngenxa ye-fiber agglomeration.

Ubude be-fiber (isb. 6mm kanye no-18mm) bunomthelela omncane emandleni ebhondi, kodwa imicu emifushane ihlakazeka kalula ukuze kuncishiswe ukushiyeka kokuhlangana kobuso.

2. Isigaba samandla sikakhonkolo ogaywe kabusha

Ukwenyusa izinga lokuqina likakhonkolo ogaywe kabusha (isb, ukusuka ku-C30 ukuya ku-C40) kuthuthukisa amandla esibopho phakathi kuka-BI-Frp Reinforcement kanye ne-substrate, kodwa ukwanda kunqunyelwe, futhi isixhumi esibonakalayo sisengozini yokuxebuka okushwabene lapho izinga lamandla liphezulu kakhulu.

3. Ukwelashwa kwe-interface kanye ne-ejenti yokuhlanganisa

Sandblasting ebusweni I-BFRP ukuqiniswa kungandisa ubulukhuni futhi kuthuthukise amandla okuluma ngomshini; ukwengeza i-ejenti yokuhlanganisa i-silane kungathuthukisa ukuhlangana kwamakhemikhali phakathi kwe-fiber ne-resin matrix futhi kunciphise ukushelela kobuso.

Ukuhlolwa kanye nezindlela zezakhiwo zokunamathela

1. Ukuhlolwa kokukhipha maphakathi

Ijika le-bond-slip lacutshungulwa ngokuhlolwa kokudonsa, futhi kwatholakala ukuthi imodi yokulimala kwebhondi ngokuyinhloko yayiwukukhipha i-tendon noma ukuhlukaniswa kukakhonkolo. Ukwengezwa kwe imicu ye-basalt kungabambezela umonakalo brittle kakhonkolo futhi kuthuthukise ductility.

Ibanga elijwayelekile lamandla ebhondi liyi-6-12 MPa, futhi inani elithile lithintwa umthamo wefayibha, ububanzi bokuqinisa (isb., 16 mm) kanye nenqubo yokwelashwa kwesixhumi esibonakalayo.

2. Imodeli yokusabalalisa ingcindezi yebhondi

Ukucindezelwa kwebhondi kusatshalaliswa ngokungahambisani nobude bokuqiniswa, futhi ukucindezeleka okuphezulu kugxilwe ekugcineni kokulayisha. Imodeli yetiyori idinga ukucabangela ukumelana nesandiso sokuqhekeka kanye nomthelela wokungqubuzana kwesikhombimsebenzisi sikakhonkolo oqiniswe ngefayibha.

Izinzuzo zohlelo lokusebenza namacala wobunjiniyela

1. Ukumelana nokugqwala nokuqina

I-BFRP reinforcement igcina ngaphezu kuka-90% wamandla ayo ebhondi ezindaweni zokuguguleka kwe-ion ye-chloride (isb, ubunjiniyela basolwandle), obungcono kakhulu kunemigoqo yensimbi ne-fiberglass yokuqinisa.

Iphuzu elibalulekile: Ibhuloho le-Qingdao Cross-Sea lamukela ukuqinisa kwe-BFRP ukuze lithathele indawo yokuqinisa insimbi, futhi iminyaka yokuphila kwalo inwetshiwe yaba ngaphezu kweminyaka eyi-100.

2. I-Lightweight kanye Ne-Seismic Performance

Ukuminyana kokuqiniswa kwe-BFRP kungu-1/4 kuphela wensimbi, engasetshenziswa ukuqinisa imishayo kakhonkolo ukuze kuncishiswe isisindo sesakhiwo ngo-20% -30%, futhi ngesikhathi esifanayo kuthuthukise amandla okusebenzisa amandla okuzamazama komhlaba ngokusonga ukuqinisa.

Izinselelo Ezikhona Nokuqondisa Kokuthuthukisa

1. Ukuqiniswa kwesibopho esiphakathi kobuso

Inkinga ekhona: I-interface phakathi kwama-fibers kanye ne-cement matrix ijwayele ukuxebuka ngenxa yokugxilisa ingqondo, futhi ama-interfacial enziwe nge-nano-modified (isb, i-nano-SiO₂ doped) adinga ukuthuthukiswa ukuze kuthuthukiswe ukuhlangana kwamakhemikhali.

2. Ukusebenza kwesikhathi eside nokumiswa

Ukuntuleka kwedatha yesikhathi eside ekhuphuka ngaphansi kwezinga lokushisa eliphezulu kanye nomswakama ophezulu (isb, iminyaka engaphezu kwe-10), ukuhlolwa kokuguga okusheshayo kuyadingeka ukuze kuqinisekiswe; Ukucaciswa kwedizayini akukafani emazweni wonke, futhi nakuba i-China ikhiphe izinga le-GB/T 38143-2019, imihlahlandlela yokuklama imininingwane isadinga ukuthuthukiswa.

3. Idizayini yokuhlanganyela enezilinganiso eziningi

Ngokuzayo, singahlola ubuchwepheshe obuxubile be I-BFRP i-reinforcement kanye ne-steel fibre/carbon fibre ukuze kwakhiwe izinhlanganisela ze-gradient nokulinganisa amandla kanye ne-ductility.

Iziqondiso Zocwaningo Lwesikhathi esizayo  

1. Ukuqapha okuhlakaniphile kanye nokumodela kwedijithali

Izinzwa ze-fiber optic ezishumekiwe kuma-tendon e-BFRP, ukuqapha kwesikhathi sangempela kobunzima bokusebenzelana kwebhondi nokuthuthukiswa kokuqhekeka, kuhlanganiswe nokulingisa kwesici esilinganiselwe ukuze kuthuthukiswe idizayini.

2. Inqubo yokulungiselela ikhabhoni ephansi

Yehlisa ukuncibilika kwefayibha ye-basalt kanye nezinga lokushisa lokudweba (okwamanje li-1400-1500 ℃), ukuthuthukiswa kwe-resin yokwelapha enezinga lokushisa eliphansi ukuze kuncishiswe ukusetshenziswa kwamandla.

3. Ukusetshenziswa kahle kwezinto ezigaywe kabusha

Hlanganisa i-aggregate egaywe kabusha kanye ne-basalt fiber nemfucuza yokwakha ukuze ukhuthaze uhlelo lwezinto zokwakha eziluhlaza "okuvuselela konke" nokunciphisa ukusetshenziswa kwezinsiza.

Isifinyezo

Ucwaningo ngokusebenza kokubopha kwe-basalt fiber-reinforced cementitious materials kanye I-BFRP amathenda azuze imiphumela yesigaba nesigaba, kodwa ukusetshenziswa kwawo okukhulu kusadinga ukunqamula izingqinamba zokusebenzelana kobuso obuhle, ukuqinisekiswa kokuqina kwesikhathi eside kanye nomklamo ojwayelekile. Ngokuzayo, ngokusungula izinto ezintsha ezihlukene (isb., izinto ezihlakaniphile, izinqubo ezinekhabhoni ephansi), kulindeleke ukuthi kuqhamuke impumelelo yezobuchwepheshe emkhakheni wobunjiniyela basolwandle kanye nokuqinisa ukumelana nokuzamazama komhlaba, nokusiza ukuthuthukiswa kwezakhiwo ezisimeme.