Method and composition for road construction and surfacing
Methods and compositions for improving the strength and longevity of secondary roadways through environmentally sound practices are disclosed herein. A composition for road sealing includes an aqueous emulsion of acrylic and vinyl acetate polymer, water, and a resin-modified emulsion, wherein the resin-modified emulsion includes a mixture of pitch and rosin, an emulsifying agent, and water.
1. A composition for road sealing, the composition comprising:
an aqueous emulsion of acrylic and vinyl acetate polymer and water; and,
a resin-modified emulsion, wherein the resin-modified emulsion comprises:
a mixture of pitch and rosin;
an emulsifying agent; and,
water, wherein the composition is substantially free of asphalt, wherein the composition is water insoluble when dispersed on aggregate material.
2. The composition of claim 1 , herein the composition further comprises:
soil;
synthetic fibers; and,
a binder.
3. The composition of claim 1 , wherein the aqueous emulsion is about 33.0% by weight and the resin emulsion is about 67.0% by weight.
4. The composition of claim 1 , wherein the aqueous emulsion is thickened.
5. The composition of claim 1 , wherein the aqueous emulsion is unthickened.
6. The composition of claim 1 , wherein the composition further comprises:
a tack coat.
7. The composition of claim 6 , wherein the composition further comprises:
limestone chips.
8. The composition of claim 6 , wherein the tack coat comprises:
resin-modified emulsion of pitch, rosin, an emulsifying agent, and water: and,
an aqueous emulsion of acrylic and vinyl acetate polymer.
9. The composition of claim 6 , wherein the tack coat comprises an aqueous emulsion.
10. The composition of claim 6 , wherein the tack coat comprises:
an aqueous emulsion; and,
a viscosity enhancer.
11. The composition of claim 1 , wherein the composition is substantially free of polycyclic organic matter.
12. The composition of claim 1 , wherein the composition further comprises a curing agent.
13. The composition of claim 1 , wherein the composition absorbs heat, is non-hazardous, non-flammable, non-corrosive, non-toxic, and contains substantially no chloride.
14. A method for road sealing, the method comprising the steps of:
mixing an aqueous emulsion and a resin-modified emulsion with associated native soil to form a road base:
grading and compacting the road base;
applying to the road base a tack coat of aqueous emulsion;
adding rock chips to the tack coat; and,
rolling the tack coat, wherein the composition is substantially free of asphalt, wherein the aqueous emulsion is an acrylic and vinyl acetate polymer and water, and the resin-modified emulsion is pitch, rosin, emulsifying agent, and water.
15. The method of claim 14 , wherein the tack coat is a mixture of aqueous emulsion and a viscosity enhancer.
16. The method of claim 14 , wherein the step of applying to the road base a tack coat of aqueous emulsion, comprises:
applying to the road base a tack coat of about 25% to about 75% by weight resin-modified emulsion and about 25% to about 75% by weight of aqueous emulsion.
17. The method of claim 16 , wherein method comprises the steps of:
adding a binder to the road base; and,
adding synthetic fibers to the road base.
18. The method of claim 16 , wherein no polycyclic organic matter is used.
19. The method of claim 14 , wherein prior to the step of mixing an aqueous emulsion and a resin-modified emulsion with associated native soil to form a road base, the method comprises the step of:
mixing a curing agent with associated native soil.
20. The method of claim 14 , wherein the road base is water insoluble after application of the emulsions.