Hom tshiab ntawm cov khoom siv pob zeb txhawb nqa: 12/35/50-millimeter pob khawm-zoo li basalt fibers ua tiav kev siv hauv kev lag luam
Hauv kev lag luam ntawm cov ntaub ntawv txhawb nqa pob zeb, ib qho thev naus laus zis tshiab uas ua rau muaj kev hloov pauv loj hauv kev lag luam. Ib lub tuam txhab tsim khoom siv tshiab tsis ntev los no tau tshaj tawm tias nws cov khoom lag luam tshwj xeeb - ib qho zoo li lub pob khawm basalt fibernrog lub cheeb ntawm 0.7 millimeters thiab ntev ntawm 12/35/50 millimeters - tau ua tiav kev tsim khoom lag luam. Nws yuav feem ntau yog siv rau kev ua haujlwm siab Cov Qauv Pob Zeb, daws tau qhov teeb meem ntev ntev.
Tsis zoo li cov fibers du-surfaced ib txwm muaj, qhov kev sib txuas zoo li lub pob khawm no Basalt Fibers tuaj yeem tsim ntau lub ntsiab lus anchorage hauv cov pob zeb matrix. Qhov kev tsim no ua rau muaj kev sib txuas ntawm cov fibers thiab matrix, txo qhov kev pheej hmoo ntawm cov fibers raug rub tawm hauv qab kev ntxhov siab. Cov ntaub ntawv sim qhia tau hais tias lub zog tensile ntawm cov fiber no tshaj 1200 megapascals, thiab cov elastic modulus ncav cuag 50 gigapascals. Nws tuaj yeem tiv thaiv kev tsim thiab nthuav dav ntawm microcracks thaum lub sijhawm yas thiab cov theem tawv ntawm cov pob zeb.
Ua tsaug rau qhov ruaj khov ntawm cov pob zeb volcanic, hom fiber no muaj kev tiv thaiv alkali zoo heev, ua rau nws tswj tau qhov ruaj khov ntawm kev ua haujlwm ntev hauv cov chaw ib puag ncig hnyav xws li kev tsim kho marine, pem teb kev lag luam, thiab cov khoom siv hauv paus nrog cov voj voog khov-thaw ntau zaus. Cov kev sim thaum ntxov qhia tau tias ntxiv 3-5 kilograms ntawm cov fiber no rau ib lub cubic meter ntawm cov pob zeb tuaj yeem txo cov kab nrib pleb shrinkage ntau dua 60% piv rau cov pob zeb tiaj tus, thiab ob npaug ntawm qhov cuam tshuam.
"Qhov no tsis yog tsuas yog ib qho khoom siv ntxiv xwb, tab sis yog ib qho kev daws teeb meem uas ua tiav raws li lub kaw lus," tus thawj coj R&D ntawm Tuam Tshoj Beihai tau hais. "Cov qauv geometric tshwj xeeb ntawm cov fibers zoo li hinge hloov pauv qhov kev faib tawm ntawm kev ntxhov siab hauv cov pob zeb ua vaj tse, ua rau cov engineers tsim cov khoom seem nyias dua, txo cov pas nrig reinforcing, thiab ntev lub neej ntawm cov qauv."
Tam sim no, cov khoom no tau siv tau zoo rau cov haujlwm tseem ceeb xws li txoj kab hauv av hauv Tebchaws Europe thiab kev txhim kho cov chaw nres nkoj hauv Middle East. Nws qhov kev tiv thaiv corrosion zoo heev thiab kev tswj qhov tawg tau lees paub los ntawm cov zej zog engineering. Los ntawm kev pom kev txhim kho kom ruaj khov, kev siv zog ntau lawm ntawm cov fiber basalt qis dua li cov hlau lossis cov polymer fibers. Ntxiv mus, cov khoom siv raw muaj ntau thiab los ntawm xwm, uas yog nyob rau hauv kab nrog kev loj hlob ntawm cov tsev ntsuab.
Qhov kev tso tawm cov khoom no tau ua ke nrog lub sijhawm tseem ceeb ntawm kev txhim kho rau cov qauv kev lag luam ua vaj tse thoob ntiaj teb. Nws ua raws li cov kev cai ntawm cov qauv kev lag luam ua vaj tse fiber-reinforced thoob ntiaj teb, muab cov kws ua haujlwm nrog cov cuab yeej zoo los ua tiav cov qauv kev ruaj khov siab dua thiab cov hom phiaj txo cov pa roj carbon.
Nrog rau qhov teeb meem kev laus ntawm cov khoom siv hauv ntiaj teb thiab qhov kev thov kom muaj kev txhim kho kom ruaj khov, kev siv cov thev naus laus zis fiber-reinforced concrete tsis yog ib qho kev tsim kho tshiab xwb; nws kuj yog ib qho kev xaiv uas tsis zam rau kev txhim kho kev lag luam. Qhov kev tshawb pom no qhia tau hais tias kev tshawb fawb txog cov ntaub ntawv ua los ntawm cov pob zeb ua vaj tse tab tom ua kom nws txoj kev hloov pauv mus rau kev txawj ntse ntau dua, kev ruaj khov dua, thiab kev phooj ywg zoo dua rau ib puag ncig.
Peb yuav txuas ntxiv tshawb nrhiav txog tej yam xws li kev tsim cov qauv fiber tshwj xeeb thiab kev ua kom zoo dua ntawm cov pob zeb sib txuas, los txhawb kev txhim kho cov qauv kev lag luam thiab kev tsim kho tshiab, thiab muab cov kev daws teeb meem sib tw ntau dua rau cov haujlwm tsim kho niaj hnub.
