Centrifugal Method of Mixing Soil with Stabilizer

by Nam P. Sah, Assoc. Prof. of Mech. Engrg.; MIT, Cambridge, MA,
Reuy-Shan Lee, Asst. Dir.; Consumer Testing Lab., Boston, MA,


Serial Information: Journal of the Geotechnical Engineering Division, 1974, Vol. 100, Issue 3, Pg. 295-307


Document Type: Journal Paper

Abstract: A new method of pulverizing and mixing soil with stabilizers is considered for the purpose of minimizing the energy required in these operations. The method consists of extruding soil through a screen mounted between two rotating disks and spraying the extrudate with stabilizers. Vicksburg buckshot clay with various water contents has been used to evaluate the effectiveness of the method. Theoretical analyses were done in order to determine the minimum rotational speed for soil extrusion, the energy requirement, and the length of the extrudate. These theoretical results compare favorably with the experimental results. These results indicate that this method of mixing is more reliable and efficient in terms of both quality of mixing and cost than currently available commercial techniques.

Subject Headings: Soil mixing | Soil stabilization | Rotation | Soil analysis | Energy methods | Soil water | Clays | Water content

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