Bentonite aditibz na speshial kemikol na minaral tin wey dem formulate bien to improve di performance of bentonite slurri dem wey dem use for deep foundation construction, diaphragm wall installation, na geotechnical drilling operation dem. Dese aditibz dem dey modify di rheological, filtration, na stability property dem of bentonite-water system dem to match specific site kondisyon na engineering requirement dem. Common aditib type dem include polymeric viscosity modifier, soda ash for pH adjustment, inorganic salt dem for ionic control, biodegradable polymer dem for environmental compliance, na speshial clay aktivetor dem wey dey optimize di swelling na suspension capacity of di bentonite material.
Soda ash, wey dem call am sodium carbonate (Na₂CO₃), na white granular inorganic salt wey dem produce through ammonia-soda (Solvay) process or mining operation dem. For geotechnical na deep foundation work dem, soda ash dey function as critical alkaline aditib to bentonite slurri dem na drilling fluid dem, working as pH buffer na mineral aktivetor. Di material exist for several hydrated form dem (monohydrate, decahydrate, na anhydrous) na e get high solubility for water na alkaline property dem wey important for rheological control for subsurface engineering operation dem. When dem add am for bentonite formulation dem, e improve clay particle suspension, make di fluid flow better, na optimize di viscosity profile wey necessary for stable slurry system dem during deep foundation construction.
Sodium bicarbonate, wey people don know am as baking soda (NaHCO₃), na mild alkaline salt wey work as critical kemikol aditib for bentonite-based drilling fluid dem na geotechnical slurri dem wey dem use throughout deep foundation construction. With pH value wey typically dey range from 8.3 to 8.4 for aqueous solution, sodium bicarbonate dey provide buffering capacity na pH stabilization without di corrosive property dem of stronger alkaline compound dem, making am essential component for formulation dem wey dey design to optimize clay mineral behavior na fluid performance across diverse subsurface kondisyon dem.
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