Basalt Fibers Txhim Kho Kev Tiv Thaiv Carbonation ntawm Cov Pob Zeb
I. Txoj kev ua haujlwm tiv thaiv carbonation: ntau qhov kev ua haujlwm sib koom ua ke
1. Cov qauv ntawm qhov pore thiab kev tawg tsis pub
Cov fibers basalt tiv thaiv cov kab nrib pleb yas thaum ntxov hauv cov pob zeb ua vaj tse (txo 30% -50% dav) thiab thaiv CO₂ txoj kev sib kis los ntawm kev faib cov mesh peb-seem. Cov khoom siv dej ntom ntom uas tsim los ntawm qhov sib txuas fiber-matrix tuaj yeem txo qhov feem pua ntawm cov qhov hws tsis zoo (> 100 nm) los ntawm 18.6% mus rau 12.3%, txo qhov permeability.
2. Kev hloov kho dej thiab Tshuaj lom neeg kev sib koom tes
Qhov roughness ntawm cov fiber ua rau CSH gel heterogeneous nucleation ua haujlwm sai dua, ua kom cov tshuaj tiv thaiv hydration sai dua, 28 hnub qib hydration nce ntxiv 8% -12%. Thaum sib xyaw nrog cov khoom siv minerals (piv txwv li, silica fume), cov tshauv volcanic ua ke nrog cov nyhuv txwv kev tawg ntawm cov fiber txo qhov porosity tag nrho los ntawm 40%, thiab qhov feem pua ntawm cov qhov tsis muaj teeb meem (
II. Kev xyaum ua engineering thiab cov txiaj ntsig kev lag luam
1. Lub neej ntawm txoj kev tau ntev dua
Kev ua tau zoo heev Basalt Fiber Cov asphalt concrete uas Yangzhou University tau tshawb fawb thiab tsim tawm, qhov kev tiv thaiv rutting nce ntxiv 20% -40%, qhov kev tiv thaiv kev tawg ntawm qaug zog nce ntxiv 2-8 zaug, lub voj voog txij nkawm txuas ntxiv los ntawm 3-5 xyoos mus rau 6-8 xyoos, kev txuag nyiaj txij nkawm mus sij hawm ntev tau txo qis heev.
2. Kev ua tau zoo dua ntawm cov pob zeb siv rov qab
Kev tshawb fawb qhia tau tias thaum cov pob zeb sib xyaw ua ke (RAC) rov ua dua tshiab raug sib xyaw nrog 2 kg / m³ basalt fibers, qhov tob carbonation raug txo los ntawm 41% piv rau cov pob zeb rov ua dua tshiab, thiab qhov zoo tshaj plaws carbonation tiv thaiv tau ua tiav nrog 50% rov ua dua tshiab aggregate hloov tus nqi.
III. Cov Qauv thiab Cov Teeb Meem Yav Tom Ntej
1. Kev tshawb fawb txog kev sib txuas ntawm ntau thaj chaw
Yuav tsum tshawb nrhiav ntxiv txog kev ua tau zoo mus sij hawm ntev hauv qab carbonation-chloride ntsev-load coupling, cov ntaub ntawv pib qhia tias tus nqi carbonation ntawm cov fiber concrete hauv qab 0.5 npaug ntawm qhov hnyav kawg tseem qis dua 28%.
2. Kev koom ua ke ntawm kev saib xyuas ntse
Kev cog cov carbonation-sensing optical fiber thiab fiber network, kev taug qab lub sijhawm tiag tiag ntawm carbonation pem hauv ntej (qhov tseeb ± 0.1 hli), muab kev txhawb nqa cov ntaub ntawv rau kev txij nkawm tiv thaiv.
Cov fiber basalt muab ntau theem kev daws teeb meem rau kev tiv thaiv carbonation los ntawm kev ua kom zoo dua qub thiab kev ua haujlwm loj dua. Nrog kev txhim kho ntawm tus qauv system thiab kev tsim kho tshiab, nws daim ntawv thov yuav raug nthuav dav los ntawm txoj kev thiab choj mus rau kev tsim kho dej hiav txwv thiab lwm yam teb, txhawb kev ruaj khov ntawm cov khoom siv hauv paus mus rau lub sijhawm tshiab.
