Road structure – process – or apparatus – Process – In situ treatment of earth or roadway
Patent
1994-03-01
1996-02-20
Britts, Ramon S.
Road structure, process, or apparatus
Process
In situ treatment of earth or roadway
404 87, E01C 706
Patent
active
054924316
ABSTRACT:
An apparatus and method for simultaneously cutting parallel slots in a pavement surface is provided, especially for dowel bar retrofit load transfer restoration at joints. The apparatus includes a movable frame lockable with a brake, plurality of parallel cutting blades rotatably mounted on twin cutting heads on the frame, vertical travel unit for raising and lowering the blades independently or in unison, and horizontal travel units for moving the blades horizontally. One of the twin cutting heads is mounted on each side of the frame, with hydraulic adjusting rams for independently setting the width therebetween. A slurry control system which is mounted on the frame provides the blades with coolant and vacuums up the slurry produced during cutting. The method for simultaneously cutting a plurality of slots includes the steps of positioning the apparatus and blades in the desired location, locking the machine against movement relative the surface, rotating the blades, lowering the blades to cut the pavement to a first depth, moving the blades horizontally to form an elongated cut, repeating this plunging and traversing process until the desired depth of cut is achieved, raising the blades and moving the apparatus. The pavement between the parallel cuts is easily removed by a jack hammer.
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Given Robert W.
Godwin James K.
Maynard Jerry
Mosher Larry
Rasmussen James E.
Britts Ramon S.
Concrete Textures, Inc.
O'Connor Pamela A.
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