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Cov pam vov Bentonite uas tsis ntub dej / cov lev uas tsis ntub dej
I. Cov Khoom Qhia Txog Khoom: Qhov hnyav ntawm thaj chaw ≥ 4000g / ㎡, dav 4-6m.
II. Cov yam ntxwv ua haujlwm
Piv rau cov av nplaum compacted, nws muaj qhov zoo xws li me me, lub teeb yuag, yooj ywm zoo, kev ua haujlwm zoo, lub zog shear siab, kev tsim kho yooj yim, thiab kev hloov pauv mus rau qhov tsis sib xws.
Lub npe mineralogical rau bentonite yog montmorillonite. Cov bentonite ntuj feem ntau muab faib ua ob pawg raws li nws cov tshuaj lom neeg sib xyaw: sodium-based thiab calcium-based. Bentonite muaj tus yam ntxwv ntawm o thaum kov dej. Feem ntau, calcium-based bentonite nthuav dav mus txog li peb npaug ntawm nws tus kheej ntim thaum nws o, thaum sodium-based bentonite nqus tsib npaug ntawm nws tus kheej qhov hnyav hauv dej, nthuav dav mus rau ntau dua 15-17 npaug ntawm nws lub ntim thawj. Xauv sodium-based bentonite ntawm ob txheej ntawm cov khoom siv geosynthetic muab kev tiv thaiv thiab kev txhawb nqa, muab GCL qee qhov kev sib zog shear tag nrho.
III. Daim Ntawv Thov Khoom
Cov pam vov tiv thaiv dej Benton yog cov khoom siv geosynthetic tsim tshwj xeeb rau kev tiv thaiv kev ntws hauv cov pas dej cuav thiab cov dej ntws, cov chaw pov tseg, cov chaw nres tsheb hauv av, lub vaj saum ru tsev, cov pas dej ua ke, cov chaw khaws roj, thiab cov chaw khaws tshuaj. Lawv muaj cov bentonite sodium uas muaj ntau yam uas tau sau rau ntawm cov geotextile sib xyaw ua ke thiab cov ntaub tsis-woven. Lub lev tiv thaiv dej bentonite, tsim los ntawm kev siv txoj kev xuas koob, tsim ntau qhov chaw me me, tiv thaiv cov khoom bentonite kom tsis txhob ntws mus rau ib qho kev taw qhia. Thaum kov dej, nws tsim ib txheej dej zoo li gel, uas muaj cov dej ntws ceev heev hauv lub lev, tiv thaiv tau dej ntws.
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Hongyue txoj kab nqes tiv thaiv tiv thaiv kev nqus dej cement pam
Daim pam cement tiv thaiv qhov nqes hav yog ib hom khoom siv tiv thaiv tshiab, feem ntau yog siv rau hauv qhov nqes hav, dej, ntug dej thiab lwm yam haujlwm los tiv thaiv kev yaig av thiab kev puas tsuaj ntawm qhov nqes hav. Nws feem ntau yog ua los ntawm cement, ntaub woven thiab polyester ntaub thiab lwm yam ntaub ntawv los ntawm kev ua tshwj xeeb.
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Bentonite daim pam tsis muaj dej
Daim pam tiv thaiv dej Bentonite yog ib hom khoom siv geosynthetic uas siv tshwj xeeb rau kev tiv thaiv kev ntws hauv cov dej hauv pas dej cuav, cov chaw pov tseg, cov chaw nres tsheb hauv av, lub vaj saum ru tsev, pas dej ua ke, cov chaw khaws roj, cov chaw khaws tshuaj lom neeg thiab lwm qhov chaw. Nws yog ua los ntawm kev sau cov sodium-based bentonite uas nthuav dav heev ntawm cov geotextile sib xyaw ua ke tshwj xeeb thiab cov ntaub tsis-woven. Lub ncoo tiv thaiv kev ntws bentonite ua los ntawm txoj kev xuas koob tuaj yeem tsim ntau qhov chaw me me, uas tiv thaiv cov khoom bentonite los ntawm kev ntws mus rau hauv ib qho kev taw qhia. Thaum nws los rau hauv kev sib cuag nrog dej, ib txheej colloidal dej tsis sib xws thiab siab-density yog tsim hauv lub ncoo, zoo tiv thaiv dej ntws.
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Iav Fiber Cement Pam
Cov ntaub pua plag pob zeb, yog ib hom khoom siv sib xyaw ua ke uas sib xyaw cov iav fiber thiab cov ntaub ntawv cement. Cov hauv qab no yog cov lus qhia ntxaws ntxaws txog cov yam ntxwv xws li cov qauv, lub hauv paus ntsiab lus, qhov zoo thiab qhov tsis zoo
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Daim pam cement yog ib hom khoom siv hauv tsev tshiab
Cov lev cementitious composite yog ib hom khoom siv tshiab uas siv cov cement thiab textile fiber technologies ua ke. Lawv feem ntau yog ua los ntawm cov cement tshwj xeeb, cov ntaub fiber peb-seem, thiab lwm yam khoom ntxiv. Cov ntaub fiber peb-seem ua haujlwm ua lub moj khaum, muab cov duab yooj yim thiab qee qib ntawm kev ywj pheej rau cov lev cementitious composite. Cov cement tshwj xeeb tau faib sib npaug hauv cov ntaub fiber. Thaum kov dej, cov khoom hauv cov cement yuav dhau los ua cov tshuaj tiv thaiv hydration, maj mam ua kom cov lev cementitious composite tawv thiab tsim cov qauv khov kho zoo ib yam li cov pob zeb. Cov khoom ntxiv tuaj yeem siv los txhim kho kev ua tau zoo ntawm cov lev cementitious composite, xws li kho lub sijhawm teeb tsa thiab txhim kho kev tiv thaiv dej.
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