# US 9,435,084 B2 · Paving machine

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- Number: US 9,435,084 B2
- Document ID: US9435084B2
- Status: Granted
- Kind: B2
- Application number: 14/301,903
- Filed: 2014-06-11
- Published: 2014-12-11
- Granted: 2016-09-06
- Earliest claimed: 2013-06-11
- Assignees: Northeast Asphalt, Inc.
- Applicants: Northeast Asphalt, Inc.
- Inventors: John C. Bartoszek
- Web page: https://patentgrep.com/patent/US9435084B2

## CPC

- E01C 19/174: {Apparatus with pump-discharge}
- E01C 7/185: {Isolating, separating or connecting intermediate layers, e.g. adhesive layers; Transmission of shearing force in horizontal intermediate planes, e.g. by protrusions (E01C7/187 takes precedence; adhesive layers for materials E01C7/35)}
- E01C 11/02: Arrangement or construction of joints {(for pavings consisting of prefabricated units E01C5/00)}; Methods of making joints {(machines therefor E01C23/02, E01C23/09; removable joint shutterings E01C23/021)}; Packing for joints (sealing joints not restricted to road or airfield paving E04B1/68)
- E01C 19/002: {Apparatus for preparing and placing the materials and for consolidating or finishing the paving}
- E01C 19/004: {Devices for guiding or controlling the machines along a predetermined path (for graders or bulldozers E02F3/841; for other soil-shifting machines E02F9/2045)}
- E01C 19/08: Apparatus for transporting and {heating or} melting asphalt, bitumen, tar, or the like (stationarily-arranged melting boilers for tar, asphalt, or the like, in general C10C3/12)
- E01C 19/17: Application by spraying {or throwing}
- E01C 19/176: {Spraying or throwing elements, e.g. nozzles; Arrangement thereof or supporting structures therefor, e.g. spray-bars}
- E01C 19/178: {Elements or attachments for spreading-out or smoothing-down the applied material, e.g. brushes}
- E01C 19/48: for laying-down the materials and consolidating them, or finishing the surface {, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ (E01C19/002, E01C23/065 take precedence; devices for guiding or controlling the machines along a predetermined path E01C19/004)}
- E01C 2301/20: Screed or paver accessories for paving joint or edge treatment
- Y02A 30/30: in transportation, e.g. on roads, waterways or railways
- E01C: CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR (forming roads or like surfaces by compacting or grading snow or ice E01H)
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

## Abstract

A method of paving a roadway that includes a first lane and a second lane adjacent the first lane includes applying, a first asphalt layer over the first lane of the roadway. The first asphalt layer includes a first side edge defining a portion of a joint between the first asphalt layer and a second asphalt layer. The method also includes smoothing the first asphalt layer on the first lane of the roadway, applying an additive on the first side edge to soften the first side edge, and applying the second asphalt layer over the second lane of the roadway. The second asphalt layer includes a second side edge abutting the first side edge such that the second side edge mixes with the first side edge. The first side edge and the second side edge form the joint between the first asphalt layer and the second asphalt layer.

## Claims

### Claim 1

A method of paving a roadway including a first lane and a second lane adjacent the first lane, the method comprising:
applying, with a paving machine, a first asphalt layer over the first lane of the roadway, the first asphalt layer including a first side edge defining a portion of a joint between the first asphalt layer and a second asphalt layer;
smoothing, with the paving machine, the first asphalt layer on the first lane of the roadway;
applying, with the paving machine, a warm-mix additive on the first side edge to soften the first side edge;
applying, with the paving machine, the second asphalt layer over the second lane of the roadway, the second asphalt layer including a second side edge abutting the first side edge such that the second side edge mixes with the first side edge, the first side edge and the second side edge forming the joint between the first asphalt layer and the second asphalt layer; and
smoothing, with the paving machine, the second asphalt layer on the second lane.

### Claim 2 (depends on 1)

The method of claim 1, further comprising spraying, with the paving machine, a second additive on the second asphalt layer on the second lane.

### Claim 3 (depends on 1)

The method of claim 1, further comprising allowing the first asphalt layer to cool before applying the warm-mix additive on the first side edge.

### Claim 4 (depends on 1)

The method of claim 1, wherein applying the warm-mix additive on the first side edge includes activating a pump according to a speed of the paving machine to spray the warm-mix additive on the first side edge.

### Claim 5 (depends on 1)

The method of claim 1, wherein applying the warm-mix additive on the first side edge includes activating spray nozzles of the paving machine to spray the warm-mix additive on the first side edge.

### Claim 6 (depends on 1)

The method of claim 1, further comprising spraying the warm-mix additive to asphalt material in the paving machine used to apply the second asphalt layer before the second asphalt layer is applied on the second lane of the roadway.

### Claim 7 (depends on 1)

The method of claim 1, wherein the joint is a tapered cold asphalt joint.

### Claim 8 (depends on 1)

The method of claim 1, wherein the joint is a vertical cold asphalt joint.

### Claim 9 (depends on 1)

The method of claim 1, further comprising, heating the warm-mix additive before the warm-mix additive is applied to the roadway.

### Claim 10

A method of paving a roadway, the method comprising: storing a warm-mix additive on a paving machine;
heating the warm-mix additive such that the warm-mix additive is maintained at a specified temperature range;
spraying, with a paving machine, the warm-mix additive on the roadway;
applying, with the paving machine, an asphalt layer over the roadway; and
smoothing, with the paving machine, the asphalt layer on the roadway;
wherein the asphalt layer is a first asphalt layer, the first asphalt layer having a side edge defining a portion of an asphalt joint between the first asphalt layer and a second asphalt layer, and wherein spraying the warm-mix additive on the roadway includes spraying, with the paving machine, the warm-mix additive to the side edge to soften the side edge;
and applying the second layer over a second lane of the roadway, the second asphalt layer including a side edge abutting the first side edge such that the second side edge mixes with the first side edge.

### Claim 11 (depends on 10)

The method of claim 10, further comprising propelling the paving machine forward at a speed, and wherein spraying the warm-mix additive on the roadway includes activating a pump according to the speed of the paving machine to spray the warm-mix additive on the roadway using a spray assembly coupled to the paving machine.

### Claim 12 (depends on 10)

The method of claim 10, further comprising, spraying the warm-mix additive to asphalt material transported in the paving machine before applying the asphalt material on the roadway.

### Claim 13 (depends on 10)

The method of claim 10, further comprising smoothing, with the paving machine, the second asphalt layer on the roadway.

### Claim 14 (depends on 13)

The method of claim 13, further comprising, spraying the warm-mix additive to the second asphalt layer after the second asphalt layer is smoothed by the paving machine.

### Claim 15 (depends on 10)

The method of claim 10, wherein spraying the warm-mix additive on the roadway includes spraying, with the paving machine, the warm-mix additive on the roadway before the asphalt layer is applied to the roadway.