Improving physical and mechanical properties of bentonite clay from Navbahar clay deposit

Different compositions of mixtures sand and clay with medium-grade bentonite for molding critical large parts a freight car bogie are examined in the article. to improve bentonite’s physical mechanical properties, such as gas permeability compressive strength addition soda ash, considered. As material study were taken quartz grade 1K2O2025, medium Navbaharskogo birthplace, improving properties - ash. One possible way increase bentonite's stability at high temperatures is treat it sodium-containing powder like The treatment performed by adding ash form dried bentonite. Experimental results given tables diagrams. studies carried out production conditions central plant laboratories ES “Liteyno-mechanical plant”. experiments following normative documents. basis was plotted, assumed composition established.