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US 4,867,614 AGranted
Reinforced soil and method
OwnerW. Wayne Freedinventor
Life of this patent
Estimating the term…
Abstract
Composite mixtures comprise soil and from about 0.1 to 5 percent by weight of additive discrete fiber materials. A related method for improving the engineering properties of soil includes the steps of adding from about 0.1 to 5 percent by weight of discrete fiber materials to soil and mixing the materials and soil together to form a blend.
Claims24
Reinforced soil having improved engineering properties for construction and excavation purposes comprising:
- natural soil selected from the group consisting of gravel, sand, silt, clay and mixtures thereof;
- and
- from about 0.1 to 5 percent by weight of discrete fiber materials mixed therein to improve the punching shear resistance, the total angle of internal friction, the average total cohesion and the average initial tangent modulus of said soil, said fiber materials being selected from the class consisting of man-made fiber forming substances and fiberglass.
A method for improving the engineering properties of natural soils for construction and excavation purposes comprising the steps of:
- adding from about 0.1 to 5 percent by weight of discrete fiber materials to natural soil to improve the punching shear resistance, the total angle of internal friction, the average total cohesion and the average initial tangent modulus of said soil, wherein said fiber materials are selected from the class consisting of man-made fiber forming substances and fiberglass and said natural soil is selected form the group consisting of gravel, sand, slit, clay and mixtures thereof;
- and
- mixing said materials and natural soil together to form a blend.
Dependencies are inferred from the claim text.