초록 ▼

Portland Cement Concrete with steel reinforcement mats or rods used in airport runways, highways, and other objects need to have the cement broken up for recycling or disposal and the steel mat reused or the steel recycled. The pavement removal machine lifts the concrete off a roadbed and places it

Portland Cement Concrete with steel reinforcement mats or rods used in airport runways, highways, and other objects need to have the cement broken up for recycling or disposal and the steel mat reused or the steel recycled. The pavement removal machine lifts the concrete off a roadbed and places it on an anvil. A hammer then cracks the concrete and breaks it into small pieces, which fall away from the reinforcing steel. The concrete and the steel are then recycled. The pavement removal machine has legs which are moveable between a road working position and a transport position and can translate the frame of the machine up and down. The hammers can be gravity drop or powered. The steel can be cut into sections as the pavement is continuously torn up at a rate of about 1 lane mile per day.

대표청구항 ▼

What is claimed is: 1. A pavement removal machine comprising: a frame, a means for supporting and propelling the frame on either side of the frame, a leading edge pivotally attached to the frame, the leading edge for engaging and lifting a reinforced concrete pavement having reinforcement rods ther

What is claimed is: 1. A pavement removal machine comprising: a frame, a means for supporting and propelling the frame on either side of the frame, a leading edge pivotally attached to the frame, the leading edge for engaging and lifting a reinforced concrete pavement having reinforcement rods therein from a roadbed, an anvil pivotally attached to the frame proximate the leading edge for receiving the reinforced concrete pavement from the leading edge, at least one hammer pivotally attached to the frame, the hammer engaging the reinforced concrete pavement by impacting the top surface of the pavement perpendicular to the surface thereof while the bottom surface of the pavement is resting on the anvil thereby breaking the concrete into aggregate, and removing it from the reinforcement rods in the reinforced concrete pavement, a wedge between the leading edge and the anvil, a means for adjusting the angle of the wedge relative to the leading edge and the anvil and, a saw for sawing the reinforcing rods to desired lengths. 2. A pavement removal machine as in claim 1 having, the means for supporting and conveying the frame comprises an arm pivotally attached to each corner of the frame, each arm having a leg pivotally connected to the arm and connected to a pod having a track for supporting and moving the pavement removal machine on the ground, the legs being vertically adjustable on the arms, such that the height of the frame can be adjusted to a desired height relative to the ground, and wherein the arms pivot to adjust the position of the pods on either side of the frame. 3. A pavement removal machine as in claim 1 having, a conveyor belt under the grating for removing the aggregate and depositing the aggregate in a desired location. 4. A pavement removal machine as in claim 1 having, a bin attached to the frame aft of the saw for receiving cut lengths of reinforcing rods. 5. A pavement removal machine as in claim 1 having, a means for adjusting the angle of the anvil relative to the frame. 6. A pavement removal machine as in claim 1 having, a means for adjusting the angle of the leading edge relative to the frame. 7. A pavement removal machine as in claim 1 having, a means for adjusting the angle of the hammer relative to the frame. 8. A pavement removal machine as in claim 1 having, one track on each side of the frame for supporting and moving the pavement removal machine. 9. A pavement removal machine as in claim 7 having, at least one piston connected between the frame and each track to adjust the height of the frame relative to the track. 10. A pavement removal machine as in claim 1 having, a pivotally adjustable wedge between the leading edge and the anvil to lift the pavement to a desired height. 11. A pavement removal machine as in claim 3 having, a bin for attached to the frame aft of the saw for receiving cut lengths of reinforcing rods. 12. A pavement removal machine as in claim 10 having, a means for adjusting the angle of the leading edge relative to the frame. 13. A pavement removal machine as in claim 11 having, a means for adjusting the angle of the anvil relative to the frame. 14. A pavement removal machine as in claim 12 having, a means for adjusting the angle of the hammer relative to the frame. 15. A pavement removal machine as in claim 13 having, a means for adjusting the angle of the wedge relative to the frame.