Sunan ma'adinai na bentonite shine montmorillonite, kuma bentonite na halitta an raba shi zuwa sodium da calcium bisa tsarin sinadaran.Bentonite yana da dukiya na kumburi da ruwa.Gabaɗaya, lokacin da calcium bentonite ya faɗaɗa, haɓakarsa kusan sau 3 ne kawai nasa girma.Lokacin da sodium bentonite ya faɗaɗa, yana kusan sau 15 ƙarar nasa kuma yana iya ɗaukar nauyinsa sau 6.Ruwa, babban colloid mai girma da aka kafa ta irin wannan faffadan bentonite yana da mallakin hana ruwa.Yin amfani da wannan dukiya, ana amfani da sodium bentonite azaman abu mai hana ruwa.Don sauƙaƙe gini da sufuri, an kulle bentonite a tsakiyar yadudduka biyu na kayan geosynthetic don karewa da ƙarfafa bargon GCL bentonite mai hana ruwa tare da takamaiman tsayin daka da ƙarfin huda.
Lokacin aikawa: Satumba-28-2022