Uphononongo malunga nokusebenza kokunamathela kwezinto eziqiniswe ngesamente ze-basalt fiber ezine-BFRP tendons

Izinto eziphambili ezinefuthe ekusebenzeni kokubopha

1. Ukunciphisa umthamo wefayibha kunye nobude

Ukusetyenziswa kweziyobisi ngobuninzi I-Basalt Intambo emfutshane inefuthe elikhulu kumandla okubopha, kwaye uvavanyo lubonisa ukuba i-volume doping ye-0.2% inefuthe elihle ekunyuseni amandla okubopha, kwaye i-doping egqithisileyo inokubangela ukwehla kokusebenza ngenxa ye-fiber agglomeration.

Ubude befayibha (umz. 6mm kunye ne-18mm) abunampembelelo ingako kumandla ebhondi, kodwa iifayibha ezimfutshane zisasazeka lula ukunciphisa iziphene zobuso.

2. Udidi lwamandla ekhonkrithi ephinde yasetyenziswa

Ukunyusa umgangatho wamandla ekhonkrithi esetyenzisiweyo (umz., ukusuka kwi-C30 ukuya kwi-C40) kwandisa amandla okubopha phakathi kwe-BUqinisekiso lweFrp kunye ne-substrate, kodwa ukwanda kuncinci, kwaye i-interface isengozini yokuqhekeka yi-brittle xa umgangatho wamandla uphezulu kakhulu.

3. Unyango lwe-interface kunye ne-arhente yokudibanisa

Ukuqhumisa isanti kumphezulu we I-BFRP Ukuqinisa kunokunyusa uburhabaxa kwaye kuphucule amandla okuluma oomatshini; ukongeza i-arhente yokudibanisa i-silane kunokuphucula ukubopha kweekhemikhali phakathi kwefayibha kunye ne-resin matrix kwaye kunciphise ukutyibilika kwe-interfacial.

Uvavanyo kunye neendlela zeempawu zokuncamathelisa

1. Uvavanyo lokutsalwa embindini

I-bond-slip curve ifundwe ngovavanyo lokutsalwa, kwaye kwafunyaniswa ukuba indlela yomonakalo we-bond yayikukutsalwa kwe-tendon okanye ukuqhekeka kwekhonkrithi. imicu ye-basalt ingalibazisa umonakalo oqhekekayo wekhonkrithi kwaye iphucule ukuguguleka kwayo.

Uluhlu oluqhelekileyo lwamandla ebhondi yi-6-12 MPa, kwaye ixabiso elithile lichaphazeleka yidosi yefayibha, ububanzi bokuqinisa (umz., 16 mm) kunye nenkqubo yonyango lwe-interface.

2. Imodeli yokusasazwa koxinzelelo lwebhondi

Uxinzelelo lwebhondi lusasazwa ngokungangqalanga kubude bokuqina, kwaye uxinzelelo oluphezulu lugxininiswe ekupheleni komthwalo. Imodeli yethiyori kufuneka iqwalasele ukumelana nokwandiswa kwe-crack kunye nefuthe lokungqubana kwe-interface yekhonkrithi eqiniswe ngefayibha.

Iingenelo zesicelo kunye namatyala obunjineli

1. Ukumelana nokugqwala kunye nokuqina

Ukuqinisa i-BFRP kugcina amandla ayo ebhondi ngaphezulu kwe-90% kwiindawo zokukhukuliseka kwe-ion ye-chloride (umz., ubunjineli bolwandle), nto leyo ingcono kakhulu kuneebha zokuqinisa zentsimbi kunye ne-fiberglass.

Umzekelo: Ibhulorho yaseQingdao Cross-Sea yamkela uqinisekiso lweBFRP endaweni yoqinisekiso lwentsimbi, kwaye ixesha layo lokuphila landisiwe laya kutsho kwiminyaka engaphezu kwe-100.

2. Ukusebenza okulula kunye nokushukuma komhlaba

Uxinano lokuqinisa i-BFRP yi-1/4 kuphela yentsimbi, enokusetyenziswa ukuqinisa imiqadi yekhonkrithi ukunciphisa ubunzima besakhiwo nge-20%-30%, kwaye kwangaxeshanye yonyusa amandla okusetyenziswa kwamandla enyikima ngokusonga ukuqinisa.

Imingeni ekhoyo kunye nesikhokelo sokuphucula

1. Ukuqinisa ubudlelwane phakathi kobuso

Ingxaki ekhoyo: Unxibelelwano phakathi kweefayibha kunye nesamente matrix luthanda ukuxobuka ngenxa yoxinzelelo, kwaye ii-nano-modified interfacial agents (umz., nano-SiO₂ doped) kufuneka ziphuhliswe ukuze kuphuculwe ukubopha kweekhemikhali.

2. Ukusebenza kwexesha elide kunye nokubekwa emgangathweni

Ukungabikho kwedatha yokuqhekeka kwexesha elide phantsi kobushushu obuphezulu kunye nokufuma okuphezulu (umz., ngaphezulu kweminyaka eli-10), iimvavanyo zokwaluphala ezikhawulezileyo ziyafuneka ukuqinisekisa; iinkcukacha zoyilo azikafani kuwo onke amazwe, kwaye nangona iTshayina ikhuphe umgangatho we-GB/T 38143-2019, izikhokelo zoyilo lweenkcukacha zisafuna ukuphuculwa.

3. Uyilo lwentsebenziswano olunemilinganiselo emininzi

Kwixesha elizayo, singahlola iteknoloji exutyiweyo ye I-BFRP ukuqinisa kunye nefayibha yentsimbi/ifayibha yekhabhoni ukwakha ii-gradient composites kunye nokulinganisela amandla kunye nokuguquguquka.

Izikhokelo zoPhando lwexesha elizayo  

1. Ukubeka esweni okukrelekrele kunye nomzekelo wedijithali

Izinzwa ze-fiber optic ezifakwe kwi-tendon ze-BFRP, ukujonga ngexesha langempela ubunzima be-bond interface kunye nophuhliso lwe-crack, kunye nokulinganisa izinto ezilinganiselweyo ukuze kuphuculwe uyilo.

2. Inkqubo yokulungiselela i-carbon ephantsi

Nciphisa ukunyibilika kwefayibha ye-basalt kunye nobushushu obutsalayo (okwangoku yi-1400-1500 ℃), uphuhliso lwe-resin yokupholisa enobushushu obuphantsi ukunciphisa ukusetyenziswa kwamandla.

3. Ukusetyenziswa ngokufanelekileyo kwezinto ezisetyenzisiweyo

Hlanganisa i-aggregate ephinde yasetyenziswa kunye ne-basalt fiber kunye nenkunkuma yokwakha ukukhuthaza inkqubo yezixhobo zokwakha eziluhlaza "ezihlaziyekayo" kunye nokunciphisa ukusetyenziswa kwezixhobo.

Isishwankathelo

Uphando malunga nokusebenza kokubopha kwezinto eziqiniswe ngefayibha ye-basalt kunye I-BFRP I-tendon ifumene iziphumo kwinqanaba ngenqanaba, kodwa ukusetyenziswa kwayo okukhulu kusafuneka kudlule kwiingxaki zokwenziwa ngcono kwe-interfacial, ukuqinisekiswa kokuqina kwexesha elide kunye noyilo olusemgangathweni. Kwixesha elizayo, ngokusebenzisa izinto ezintsha ezahlukeneyo (umz., izixhobo ezikrelekrele, iinkqubo ezisebenzisa ikhabhoni ephantsi), kulindeleke ukuba ifezekise impumelelo kwezobuchwepheshe kwicandelo lobunjineli baselwandle kunye nokuqinisa ukumelana neenyikima, kwaye incede uphuhliso lwezakhiwo ezizinzileyo.