Bentonite na one fine-grained, highly plastic clay mineral wey get montmorillonite as im primary composition, and e expand well when water come contact am. Dis naturally occurring aluminosilicate clay dem extract from bentonitic deposits and dem process am into various grades for specialized geotechnical applications. Di material get exceptional binding properties, low permeability, and viscosity characteristics wey make am indispensable component for deep foundation construction, diaphragm wall installation, and ground stabilization projects all over di globe.
Sodium bentonite na natural colloidal clay mineral wey compose mainly of montmorillonite, formed from weathered volcanic ash. Dis material get exceptional water absorption capacity, swelling potential, and plastic properties wey be special-special. When hydration take place, sodium bentonite particles expand to become many times their dry volume, creating viscous, thixotropic suspensions wey get high gel strength. Di mineralogical composition include exchangeable sodium ions wey facilitate quick hydration and dispersion, and dis be what separate am from calcium bentonite and other clay variants. Dese inherent properties make sodium bentonite essential material for geotechnical and deep foundation engineering applications.
Calcium bentonite na natural clay mineral wey compose mainly of montmorillonite, and e get high water absorption capacity and swelling properties. Unlike sodium bentonite, wey dem activate with alkali, calcium bentonite retain di natural calcium-exchangeable cations e get, resulting to lower viscosity and different rheological behavior. Di mineral own layered structure allow water molecules to penetrate between clay platelets, creating expansive forces when hydration happen. Dis fundamental composition make calcium bentonite suitable for specific geotechnical and deep foundation applications where controlled hydration and lower viscosity be critical design parameters.
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