Paving machine membrane dispenser
The present invention is directed to an asphalt paving system comprising an asphalt paving machine, a plurality of dispensing shafts, and a roll of pavement reinforcing membrane. The asphalt paving machine comprising a hopper, a screed, and support tracks. The plurality of dispensing shafts are mounted on the asphalt paving machine. Each roll of pavement reinforcing membrane is supported by at least one of the plurality of dispensing shafts. The plurality of mounted membrane dispensing shafts dispense the pavement reinforcing membrane continuously beneath the asphalt paving machine as the asphalt paving moves forward.
1. An asphalt paving system comprising:
an asphalt paving machine comprising a hopper, a screed, and support tracks;
a plurality of dispensing shafts mounted on the asphalt paving machine, wherein at least one dispensing shaft is mounted on at least one side of the said paving machine;
a roll of pavement reinforcing membrane supported by each of the plurality of dispensing shafts; and
hot asphalt material stored in the hopper whereby
the plurality of dispensing shafts dispense the pavement reinforcing membrane continuously beneath the asphalt paving machine as the asphalt paving moves forward and dispenses the hot asphalt material on top of the pavement reinforcing membrane beneath the asphalt paving machine.
2. An asphalt paving system as recited in claim 1 , wherein at least one dispensing shaft is mounted on a front portion of the asphalt paving machine.
3. An asphalt paving system as recited in claim 1 , wherein at least one dispensing shaft is mounted on a leading portion of the asphalt paving machine.
4. An asphalt paving system as recited in claim 1 , wherein at least one dispensing shaft is mounted on a center area of the said paving machine.
5. An asphalt paving system as recited in claim 1 , wherein the dispensing shafts are positioned to dispense membrane in multiple strips to cover the center width between the support tracks, the area beneath each of the machines two support tracks, and the lateral areas on the outer sides of each of the support tracks.
6. An asphalt paving system as recited in claim 5 , in which side edges of each pavement reinforcing membrane overlaps an edge of at least one adjacent pavement reinforcing membrane.
7. An asphalt paving system as recited in claim 5 , in which side edges of each pavement reinforcing membrane does not overlap an edge of an adjacent pavement reinforcing membrane.
8. An asphalt paving system as recited in claim 1 , in which the pavement reinforcing membrane comprises a non-woven polymer fiber reinforcement sheet both surfaces of which are hot-coated and sand surfaced with an elastomeric modified asphalt bitumen coating forming a heat-activated bonding surface.
9. An asphalt paving system as recited in claim 8 , in which the elastomeric modified asphalt bitumen coating contains the elastomeric Styrene Butadiene Styrene polymer modifier.
10. An asphalt paving system as recited in claim 9 , in which the polymer modifier is a Styrene Isoprene Styrene polymer.
11. An asphalt paving system as recited in claim 10 , in which the Styrene Isoprene Styrene polymer is combined with an elastomeric Styrene Butadiene Styrene polymer modifier.
12. An asphalt paving system as recited in claim 10 , in which the elastomeric asphalt coating contains from 0% to 25% of a polymer modifier.
13. An asphalt paving system of claim 12 , in which the non-woven polymer reinforcement sheet is made of polyester fibers.
14. An asphalt paving system as recited in claim 13 , in which the non-woven polymer reinforcement sheet further comprises a combination of other suitable polymer fibers.
15. An asphalt paving system as recited in claim 14 , in which the asphalt bitumen blended with polymer modifier to coat the membrane is 80/100 penetration grade.
16. An asphalt paving system as recited in claim 14 , in which the asphalt bitumen further comprises tackifying agents.