Dab tsi yog qhov kev txheeb xyuas ntawm high-purity silicon hmoov khoom?
High-purity silica fume yog ib qho kev ua haujlwm zoo uas tuaj yeem txhim kho lub zog, impermeability, Frost resistance thiab durability ntawm pob zeb. Cov yam ntxwv ntawm silica fume qhob tau nyiam cov neeg nyiam. Silica fume qhob tau siv dav hauv kev txuag dej thiab kev tsim hluav taws xob, kev tsim kho, kev tsim kho, thiab kev tsim choj.
Dab tsi yog qhov cuam tshuam ntawm siab purity silicon hmoov ntawm lub kav ntev?
Lub durability ntawm pob zeb muaj xws li cov pob zeb frost tsis kam, permeability, tshuaj tiv thaiv, steel bar corrosion kuj, feem cuam tshuam, thiab lwm yam.
1) Kev ua haujlwm txias: Thaum cov ntsiab lus silica fume me me, qhov txias tsis kam ntawm silica fume ua vaj tse yog qhov zoo ib yam li cov pob zeb zoo tib yam. Yog tias cov ntsiab lus silica fume ntau tshaj 15%, qhov kev tiv thaiv txias yuav raug txo. Los ntawm ntau qhov kev sim, qhov kev pom no tau lees paub qhov tseeb. Qhov laj thawj tseem ceeb yog tias thaum silicon ntau dua 15%, kev nthuav dav ntawm cov pob zeb nce, cov txheeb ze dynamic elastic coefficient txo qis, lub zog compressive txo qis, thiab cov yam ntxwv sab hauv ntawm pob zeb muaj xws li thaj chaw me me thiab qhov sib txawv loj.
2) impermeability: Vim hais tias silica fume hais me me, 20 mus rau 100 npaug me dua li cov cement hais, lawv tuaj yeem sau qhov khoob ntawm cov pob zeb ua ke thiab ua kom cov pob zeb ntom ntom. Nyob rau tib lub sijhawm, qhov thib ob hydration ntawm silica fume thiab cov khoom tshiab thaiv cov pob zeb nkag mus. , yog li silica fume qhob muaj zog impermeability, thiab permeability ntawm qhob nce nrog nce nyob rau hauv gelatin ratio.
3) Kev tiv thaiv tshuaj tua kab mob: Ntxiv silica fume rau pob zeb tuaj yeem txo cov Ca (OH) 2 cov ntsiab lus, nce qhov ntom ntawm cov pob zeb, thiab txhim kho corrosion kuj ntawm cov acids tsis muaj zog, tab sis nws tsis tuaj yeem siv rau hauv cov kua qaub uas muaj zog lossis tsis muaj zog acids nrog siab. qhov tob. Cov pob zeb CSH decomposes hauv cov kua qaub thiab yog li tiv taus ntsev corrosion, tshwj xeeb tshaj yog chlorine ntsev. Txo cov kev sib kis ntawm cov teeb meem ions, txo qhov tsim ntawm soluble Ca (OH) 2 thiab ettringite (3 CAO 3 CASO 4 32H2), thiab ua kom cov txiaj ntsig ntawm hydrated calcium silicate crystals.
Txij li cov hlau silicon yog cov khoom siv tawv thiab nkig, cov khoom seem lim tsis tuaj yeem tswj tau zoo thaum lub sijhawm sib tsoo. Kev tsim khoom ntau dhau yog qhov hnyav, cov khoom pov tseg loj heev, cov nqi tsim khoom yog siab, cov khoom me me tsis ua raws li cov qauv, thiab cov khoom tsis sib xws.
