Strength and consolidation properties of clay modified by nano bentonite.

Nano bentonite is a new kind of soil modification material, which can effectively improve the physical and mechanical properties of clay. The development of new soil modification technology has been a research hotspot in geological engineering, geotechnical engineering and road engineering. The purpose of this study is to test and analyze the strength and consolidation characteristics of clay modified by nano bentonite, and to explore the new clay materials applied in modern geological engineering. In this study, an installation test was carried out on the preparation of nano bentonite, and the compressive condition of the bentonite was observed. After that, the viscosity strength of nano bentonite was compared with that of undisturbed soil by the control variable method, and the nano bentonite was divided into experimental group and control group. The viscosity strength and consolidation characteristics of nano bentonite were observed and analyzed by changing temperature, nano bentonite content, pressure and pore ratio. The results show that the consolidation coefficient of the sample without adding nano bentonite is 8.7 × 10–3 cm2/s, which is 6.6 × 10–3 cm2/s lower than that of 2% nano bentonite. It shows that the consolidation coefficient decreases with the increase of consolidation pressure and the decrease of void ratio. The nano bentonite modified clay is also more stable in road or building construction. The method of this study has brought a certain value for the research of nano materials in soil materials. [ABSTRACT FROM AUTHOR]