izindaba

Izinto ezihlanganisiwe ze-polymer eziqiniswe ngefayibha (GFRP) yengilaziZijwayelekile ekwakheni ngoba zinesilinganiso esiphakeme samandla nesisindo, azigugile, futhi ziyasebenziseka ekucutshungulweni.

Okokuqala, i-GFRP ivame ukusetshenziswa ekwakheni kwangempela ukudala izinto eziyisisekelo ezisekela umthwalo njengemishayo namakholomu, kanye namaphaneli ephansi. Ukusetshenziswa kwamaphethini e-fiber engilazi amaningi ahambisanayo kanye nama-resin aguquguqukayo kuvumela izingxenye ze-GFRP ukuthi zilethe amandla avelele okunamathela nokugoba. Isibonelo, imishayo eqiniswe nge-GFRP inganciphisa ubukhulu bezingxenye ezinqamula ngenkathi igcina amandla okuthwala umthwalo, ngaleyo ndlela yandise isikhala sangaphakathi esisebenzisekayo. Ezakhiweni zephansi, izakhiwo ezinhle kakhulu zokuguquguquka kwamashidi e-GFRP zingathuthukisa ukuqina kwesakhiwo, zinciphise ukuphambuka kwesikhala esiphakathi, futhi zandise impilo yesevisi.

Okwesibili, embonini yokwakha, i-GFRP ithatha indawo kancane kancane yokuqinisa insimbi yendabuko ukuze ithuthukise ukuqina kwesakhiwo kanye nokumelana nokugqwala. Ukuqinisa insimbi yendabuko kugqwala kalula ezindaweni ezinomswakama, ezifuthwa ngosawoti, noma ezinamakhemikhali, kuyilapho i-GFRP ibonisa ukumelana nokugqwala okuhle kakhulu. Ukuhlolwa kubonisa ukuthi ngisho nasezindaweni ezinosawoti omningi,I-GFRPigcina amandla ayo angaphezu kuka-90% ngemva kwamahora ayi-1000 okuhlolwa kokugqwala okusheshayo. Lokhu kwenza i-GFRP ibe yinto ebalulekile yokwakha emabhulohweni asogwini, ezindaweni zokugcina amachweba, kanye nezitshalo zezimboni. Ngaphezu kwalokho, i-coefficient ye-GFRP yokwanda kokushisa iseduze nekhonkrithi, ivimbela ukugcwala kokucindezeleka ngenxa yokushintsha kwezinga lokushisa futhi yandisa isikhathi sokuphila sezakhiwo zekhonkrithi.

Izingxenye ze-GFRP zisetshenziswa kakhulu ezindaweni ezigqwala kakhulu, njengezisekelo zamathangi ezitshalweni zamakhemikhali, izisekelo zamapulatifomu olwandle, kanye nezindonga zamachibi ezitshalweni zamanzi amdaka. Lezi zindawo zibhekene namazinga aphezulu ama-acid, izisekelo, nezinye izinto ezigqwala isikhathi eside. Ngenkathi izinto ezivamile zigqwala kalula, i-GFRP cishe ayingenwa ukuhlaselwa ngamakhemikhali. Izibalo zibonisa ukuthi ngemva kokuchayeka ezinyangeni eziyi-6 esixazululweni se-acid, esine-pH engu-3, ​​i-GFRP izoba namandla angu-95% okuqala okugoba, ngaleyo ndlela inikeze isiqinisekiso sesikhathi eside ezakhiweni ezisesimweni esinonya kanye nezindleko eziphansi zokulungisa nokufaka esikhundleni. Ingqalasizinda egugile nayo idinga ukulungiswa nokuqiniswa, njengamabhuloho amaningi omgwaqo nezakhiwo zezakhiwo. I-GFRP iyinto yokuqinisa ephelele ngoba iqinile, ilula, futhi ibopha kahle ukhonkolo. Emaphrojekthini okuqinisa amabhuloho, ingxenye yokucindezela yemishayo ivame ukunamatheliswa ngamashidi e-GFRP ukuze iwaqinise ekugobeni. Imishayo yekhonkrithi eqinisiwe ye-GFRP ingaqiniswa ifike ku-20-50%. Ekulungisweni kwemihubhe, imikhiqizo ye-GFRP mesh isetshenziswa ekuqiniseni uthango ukuze kuqiniswe idwala elizungezile futhi lenze lizinze futhi limelane nokusikwa. Ukufakwa kothango lwe-GFRP kuyashesha futhi akuphazamisi kakhulu isakhiwo esikhona ngakho-ke kufanelekile ukulungiswa okuphuthumayo kwezakhiwo ezindala namabhuloho.

Okokugcina, kubunjiniyela bamabhuloho nemihubhe, kumabhuloho amadala, amboza ubuso bezingxenye ezithwala imithwalo ngeAmashidi noma amapuleti e-GFRP, kusetshenziswa i-epoxy resin ekhethekile ukuze kuhlanganiswe ngokuqinile, kungathuthukisa amandla okuthwala umthwalo futhi kwehlise ijubane lenqubo yokuguga kwesakhiwo. Kubunjiniyela bemigudu, amagridi e-GFRP asebenza ndawonye nokhonkolo ukwakha isakhiwo esisekelayo esihlanganisiwe, okuthuthukisa ngempumelelo ukumelana nokunqunywa komhubhe kanye nokuqina kwesikhathi eside, ikakhulukazi ezindaweni ezivame ukuzamazama komhlaba.

Ukuqhathaniswa Kokusebenza Kwezicelo ze-GFRP Ezakhiweni Zesakhiwo