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US 4,464,200 AGranted
Plastic soil stabilizer composition and method of use
AssigneeWilliam B. Ellis
InventorHenry H. Duval
Life of this patent
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Abstract
A composition and method of its use for stabilizing plastic soils which composition comprises from about 25 to about 85 weight percent portland cement, from about 0 to about 75 weight percent of a filter and from about 0.1 to about 5 weight percent of a retarding agent.
Claims3
A method of stabilizing plastic soils comprising the steps of:
- mixing with the plastic soil a composition comprising about 50 weight percent Portland cement, about 49.5 percent weight filler and about 0.5 weight percent retarding agent;
- maintaining the plastic soil and composition undisturbed for a period sufficient to permit the lime in the composition to react with the plastic soil to reduce the plasticity index of the plastic soil;
- remixing the plastic soil with the composition therein and shaping it to the desired grade;
- and
- curing the remixed plastic soil and composition into a hardened, stable mass.
2 more elements
Dependencies are inferred from the claim text.