Method and composition for modifying soil and dust control
A composition for chemical improvement of soil and road base materials including an aqueous solution of a water repellant and an aqueous emulsion of a soil stabilizer and dust retardant is herein disclosed.
1. A composition for chemical improvement of soil and road base materials, the composition comprising:
an aqueous solution of a water repellant comprising about 0.25% to about 5.0% by weight of potassium hydroxide; and,
an aqueous emulsion of a soil stabilizer and dust retardant.
2. The composition of claim 1 , wherein the water repellant further comprises about 10.0% to about 30.0% by weight of potassium methylsiliconate.
3. The composition of claim 2 , wherein water repellant further comprises about 65.0% to about 89.0% by weight of water.
4. The composition of claim 1 , wherein the water repellant further comprises about 10.0% to about 30.0% by weight of sodium methylsiliconate.
5. The composition of claim 4 , wherein the water repellant further comprises about 65.0% to about 89.0% by weight of water.
6. The composition of claim 1 , wherein the aqueous emulsion of a soil stabilizer and dust retardant comprises:
about 5.0% to about 60.0% by weight of polyacrylic acid; and
polyvinyl acetate.
7. The composition of claim 6 wherein the aqueous emulsion further comprises about 40.0% to about 95.0% by weight of water.
8. The composition of claim 7 wherein the composition further comprises an emulsifier.
9. The composition of claim 6 , wherein the polyacrylic acid and polyvinyl acetate comprises a mixture of homopolymers.
10. The composition of claim 9 , wherein the polyacrylic acid and polyvinyl acetate homopolymers are present in ratios from about 1:1 to about 1:10,000 by mass of polyacrylic acid to polyvinyl acetate.
11. The composition of claim 9 , wherein the polyacrylic acid and polyvinyl acetate homopolymers are present in ratios from about 1:1 to about 1:10,000 by mass of polyvinyl acetate to polyacrylic acid.
12. The composition of claim 6 , wherein the polyacrylic acid and polyvinyl acetate comprise a blend of copolymers.
13. The composition of claim 12 , wherein the ratio of copolymer polyacrylic acid units and polyvinyl acetate units are from about 1:1 to about 1:10,000 by mass of polyacrylic acid units to polyvinyl acetate units.
14. The composition of claim 12 , wherein the ratio of copolymer polyacrylic acid units and polyvinyl acetate units are from about 1:1 to about 1:10,000 by mass of polyvinyl acetate units to polyacrylic acid units.
15. The composition of claim 12 , wherein the blend of polyacrylic acid and polyvinyl acetate copolymers includes styrene butadiene rubber.
16. The composition of claim 1 , wherein the water repellant comprises:
about 2.5% to about 30.0% by weight of polyacrylic acid and polyvinyl acetate polymer;
about 0.5% to about 2.5% by weight of potassium hydroxide;
about 5.0% to about 15.0% by weight of potassium methylsiliconate; and
about 52.5% to about 92.0% by weight of water.
17. The composition of claim 1 , wherein the aqueous emulsion comprises:
about 3.75% to about 45.0% by weight of polyacrylic acid and polyvinyl acetate polymer; and the water repellant comprises:
about 0.25% to about 1.25% by weight of potassium hydroxide;
about 2.5% to about 7.5% by weight of potassium methylsiliconate; and
about 46.25% to about 93.5% by weight of water.
18. The composition of claim 1 , wherein the aqueous emulsion comprises:
about 1.25% to about 15.0% by weight of polyacrylic acid and polyvinyl acetate polymer; and the water repellant comprises:
about 0.75% to about 3.75% by weight of potassium hydroxide;
about 7.5% to about 22.5% by weight of potassium methylsiliconate; and
about 58.75% to about 90.5% by weight of water.
19. The composition of claim 1 , wherein the aqueous emulsion of a soil stabilizer and dust retardant comprises about 0.1% to about 20.0% by weight of polyacrylic acid and polyvinyl acetate.
20. The composition of claim 19 wherein the composition further comprises about 0.1% to about 40.0% by weight of water.
21. A method for improving soil or road base materials, comprising the steps of:
(A) providing a composition comprising a heterogeneous mixture of an aqueous solution of a water repellant and an aqueous emulsion of a soil stabilizer and dust retardant, wherein the aqueous solution of the water repellant liquid comprises;
about 0.25% to about 5.0% by weight of potassium hydroxide;
about 10.0% to about 30.0% by weight of potassium methylsiliconate; and
about 65.0% to about 89.0% by weight of water;
(B) applying the composition to soil or road base materials; and
(C) allowing the composition to penetrate the soil or road base materials.
22. The method of claim 21 , wherein the aqueous emulsion of a soil stabilizer and dust retardant comprises:
about 5.0% to about 60.0% by weight of polyacrylic acid and polyvinyl acetate; and
about 40.0% to about 95.0% by weight of water.
23. The method of claim 21 , wherein step (B) further comprises scarifying the soil or road base materials before applying the composition to the soil or road base materials.
24. The method of claim 23 , further comprising step:
(D) grading and compacting the treated soil or road base materials.
25. The method of claim 24 , further comprising step:
(E) applying a top coat of the composition.
26. The method of claim 21 , wherein step (B) further comprises mechanically mixing the composition with the soil or road base materials.
27. The method of claim 26 , further comprising step:
(D) compacting the treated soil or road base materials.
28. The method of claim 27 , further comprising step:
(E) applying a top coat of the composition.
29. The method of claim 28 , wherein step (E) further comprises applying a surface course to the soil or road base materials before applying a top coat of the composition.