Kugwiritsa ntchito ma desiki a mlatho wa Fiber Reinforced Polymer (FRP) kukusintha mawonekedwe omanga mlatho.
Milatho yachikale yopangidwa ndi konkriti yolimbitsidwa ndi zitsulo zakhala ikukumana ndi dzimbiri ndi kuwonongeka kwa konkire, osati kufupikitsa moyo wa milatho komanso zomwe zingayambitse ngozi zoopsa. Nkhaniyi imakhala yovuta kwambiri m'madera a m'mphepete mwa nyanja omwe ali ndi chloride ion concentration, kumene kuwonongeka kwa milatho ndi vuto lalikulu. Chifukwa chake, kuwongolera kulimba kwa milatho kwakhala vuto lalikulu pakukonza milatho.
FRP imawonedwa ngati chinthu choyenera kupititsa patsogolo kulimba kwa milatho chifukwa cha kukana kwake kwa dzimbiri. Makina amilatho a FRP nthawi zambiri amabwera m'mitundu iwiri: zomanga zonse za FRP ndi ma desiki opangidwa ndi FRP-konkriti, okhala ndi mawonekedwe osiyanasiyana. Poyerekeza ndi ma desiki okhazikika a konkriti, ma desiki a FRP amapereka maubwino ambiri: amapangidwa kale m'mafakitale, opepuka, ndipo amafulumira kuyika; amakaniza bwino dzimbiri kuchokera ku mchere wa ayezi, madzi a m'nyanja, ndi ayoni a chloride, kuchepetsa mtengo wokonza; kulemera kwawo kumachepetsa katundu pazinthu zothandizira; monga zinthu zotanuka, zimatha kubwerera ku chikhalidwe chawo choyambirira ndikulemetsa mwa apo ndi apo; ndipo ali ndi ntchito yabwino yotopa. Muzochita zenizeni, makina a FRP samangogwiritsidwa ntchito pomanga mlatho watsopano komanso ndi oyenera kukonzanso milatho yakale, m'malo mwa makonkire achikhalidwe. Izi sizingochepetsa kulemera kwa sitimayo komanso zimawonjezera mphamvu yonyamula katundu komanso kukana kwa dzimbiri kwa mlatho.
Makhalidwe onyamula katundu a FRP bridge decks makamaka amaphatikiza nthawi yopindika, mphamvu zometa ubweya, komanso kukakamizidwa komweko. Malo onse a FRP nthawi zambiri amakhala ndi zikopa zam'mwamba ndi zam'munsi za FRP ndi ukonde, wokhala ndi kupsinjika kwapakhungu, kupsinjika kwapakhungu, ndipo ukonde umalimbana kwambiri ndi kukameta ubweya polumikiza zikopa zapamwamba ndi zapansi. Mu FRP-konkriti / matabwa ophatikizika, konkire kapena matabwa amayikidwa pamalo oponderezedwa, pomwe FRP imakhala ndi zovuta. Mphamvu zometa ubweya pakati pawo zimasamutsidwa kudzera pa zolumikizira zometa ubweya kapena njira zomatira. Pansi pa katundu wokhazikika, mapepala a FRP amakumananso ndi kupindika, kumeta ubweya, kapena kuphwanya mphamvu; katundu wa asymmetric amapanganso torsion pagawo. Popeza FRP ndi chinthu cha anisotropic komanso chopanda homogeneous, magawo ake amakina amafunikira kutsimikiziridwa kudzera mu kapangidwe ka laminate, kupanga mapangidwe a FRP decks kukhala ovuta, kumafuna mgwirizano wapakati pakati pa opanga ndi akatswiri ogulitsa FRP.
