Cov pam vov Bentonite uas tsis ntub dej / cov lev uas tsis ntub dej
Kev Piav Qhia Luv:
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.
