Uphononongo malunga nokusebenza kwe-adhesion ye-basalt fibre eyomeleziweyo ye-cementitious materials kunye ne-BFRP tendons

Imiba ephambili enempembelelo yokusebenza kokudibanisa

1. I-Fiber volume doping kunye nobude

Umthamo wedoping we Ibasalt Umsonto omfutshane unesiphumo esibalulekileyo kumandla okudibanisa, kwaye uvavanyo lubonisa ukuba umthamo we-doping we-0.2% unesiphumo esingcono ekuphuculeni amandla okudibanisa, kunye ne-doping egqithisileyo kunokukhokelela ekwehleni kwentsebenzo ngenxa ye-fiber agglomeration.

Ubude beFayibha (umzekelo, i-6mm kunye ne-18mm) bunefuthe elincinane ekomeleleni kwebhondi, kodwa iintsinga ezimfutshane zisasazwa ngokulula ukunciphisa iziphene zobuso.

2. Iklasi yamandla yekhonkrithi esetyenzisiweyo

Ukwandisa umgangatho wamandla ekhonkrithi esetyenzisiweyo (umzekelo, ukusuka kwi-C30 ukuya kwi-C40) kwandisa amandla ebhondi phakathi kwe-B.UQiniso lweFrp kunye ne-substrate, kodwa ukunyuka kulinganiselwe, kwaye ujongano luchaphazeleka kwi-brittle peeling xa ibakala lamandla liphezulu kakhulu.

3. Unyango lwe-interface kunye ne-arhente yokudibanisa

Sandblasting umphezulu we BFRP ukuqinisa kunokunyusa uburhabaxa kunye nokuphucula amandla okuluma oomatshini; Ukongeza i-agent yokudibanisa i-silane inokwandisa ukuhlangana kweekhemikhali phakathi kwefiber kunye ne-resin matrix kunye nokunciphisa ukutyibilika kobuso.

Uvavanyo kunye neendlela zeempawu zokubambelela

1. Uvavanyo lokutsalwa kwiziko

I-bond-slip curve yafundwa ngovavanyo lokukhupha, kwaye kwafunyaniswa ukuba imowudi yokulimala kwebhondi yayiyi-tendon yokukhupha okanye ukuhlukana kwekhonkrithi. Ukongezwa kwe imicu yebasalt inokulibazisa ukonakala kwekhonkrithi kwaye yandise i-ductility.

Uluhlu oluqhelekileyo lwamandla ebhondi yi-6-12 MPa, kwaye ixabiso elithile lichaphazelekayo yi-dosage ye-fiber, i-diameter yokuqinisa (umzekelo, i-16 mm) kunye nenkqubo yonyango lwe-interface.

2. Imodeli yokusabalalisa uxinzelelo lwebhondi

Uxinzelelo lwebhondi lusasazwa ngokungafaniyo kunye nobude bokuqiniswa, kwaye uxinzelelo oluphezulu lugxininiswe ekupheleni kokulayisha. Imodeli yethiyori kufuneka ithathele ingqalelo ukunganyangeki kokwandiswa kokuqhekeka kunye nefuthe le-friction ye-fiber-fiber-reinforced.

Izibonelelo zesicelo kunye neemeko zobunjineli

1. Ukumelana nokubola kunye nokuqina

I-BFRP yokuqinisa igcina ngaphezu kwe-90% yamandla ebhondi kwiindawo zokukhukuliseka kwe-chloride ion (umzekelo, ubunjineli baselwandle), obungcono kakhulu kunentsimbi kunye nemivalo yokuqinisa i-fiberglass.

Imeko: Ibhuloho ye-Qingdao ye-Cross-Sea yamkela i-BFRP yokuqinisa ukuze ithathe indawo yokuqiniswa kwentsimbi, kwaye ixesha lokuphila kwayo liye landiswa ukuya kwiminyaka engaphezu kwe-100.

2. UkuSebenza okuKhala kunye neSeismic

Ubuninzi be-BFRP yokuqinisa kuphela i-1/4 yentsimbi, engasetyenziselwa ukuqinisa imiqadi yekhonkrithi ukunciphisa ubunzima besakhiwo nge-20% -30%, kwaye kwangaxeshanye kuphuculwe amandla okusetyenziswa kwamandla e-seismic ngokusonga ukuqiniswa.

Imingeni ekhoyo kunye neSikhokelo soPhuculo

1. Ukuqiniswa kobudlelwane phakathi kobuso

Ingxaki ekhoyo: I-interface phakathi kwe-fibers kunye ne-matrix ye-samente ilungele ukuxubha ngenxa yoxinzelelo loxinzelelo, kunye ne-nano-modified interfacial agents (umzekelo, i-nano-SiO₂ doped) kufuneka iphuhliswe ukuze kuphuculwe i-chemical bonding.

2. Ukusebenza kwexesha elide kunye nokulinganisa

Ukunqongophala kwedatha yexesha elide ye-creep phantsi kobushushu obuphezulu kunye nokufuma okuphezulu (umzekelo, ngaphezu kweminyaka eyi-10), iimvavanyo zokuguga ezikhawulezileyo ziyafuneka ukuze kuqinisekiswe; iinkcukacha zoyilo azikafani kumazwe onke, kwaye nangona iChina ikhuphe umgangatho we-GB/T 38143-2019, imigaqo yoyilo lweenkcukacha zisafuna ukuphuculwa.

3. Uyilo lwentsebenziswano olubanzi

Kwixesha elizayo, sinokuphonononga iteknoloji ye-hybrid ye BFRP ukuqinisa kunye nefiber yensimbi / i-carbon fiber ukwakha i-gradient composite kunye nokulinganisela amandla kunye ne-ductility.

Izalathiso zoPhando lwexesha elizayo  

1. Ukubeka iliso okukrelekrele kunye nemodeli yedijithali

I-fiber optic sensors efakwe kwii-tendon ze-BFRP, ukujonga ixesha lokwenyani loxinzelelo lwe-bond interface kunye nophuhliso lokuqhekeka, kudityaniswe ne-finite element simulation ukukhulisa uyilo.

2. Inkqubo yokulungiswa kwekhabhoni ephantsi

Ukunciphisa i-basalt fiber melting kunye nokushisa komzobo (okwangoku yi-1400-1500 ℃), ukuphuhliswa kwe-resin yokunyanga okuphantsi kweqondo lokushisa ukunciphisa ukusetyenziswa kwamandla.

3. Ukusetyenziswa ngokufanelekileyo kwezinto ezisetyenzisiweyo

Hlanganisa i-aggregate ehlaziyiweyo kunye ne-basalt fiber kunye nenkunkuma yokwakha ukukhuthaza inkqubo yezinto zokwakha "zohlaziyo" kunye nokunciphisa ukusetyenziswa kwezixhobo.

Isishwankathelo

Uphando malunga nokusebenza kwe-bonding ye-basalt fiber-reinforced cementitious materials kunye BFRP i-tendon iphumelele iziphumo zenqanaba ngenqanaba, kodwa usetyenziso lwayo olukhulu lusafuna ukugqobhoza kwiibhotile zokulungiswa kwe-interfacial optimization, ukuqinisekiswa kwexesha elide kunye noyilo olusemgangathweni. Kwixesha elizayo, ngokusebenzisa i-multidisciplinary cross-innovation (umzekelo, imathiriyeli ehlakaniphile, iinkqubo zekhabhoni ephantsi), kulindeleke ukuba kuphunyezwe impumelelo yezobuchwepheshe kwiinkalo zobunjineli baselwandle kunye nokomelezwa kokumelana nenyikima, kunye nokunceda uphuhliso lwezakhiwo ezizinzileyo.