Road structure – process – or apparatus – Process – Providing expansion joint
Patent
1994-02-03
1996-02-27
Han, Frances
Road structure, process, or apparatus
Process
Providing expansion joint
404 81, 404 82, E01C 1102
Patent
active
054943736
ABSTRACT:
A process for paving a surface of a sub-base with compactable asphaltic concrete comprising aggregates and an asphaltic cement to provide a finished asphaltic pavement having dormant zones of potential fracture at predetermined locations. The process comprises the steps of forming a continuous mat of compactable asphaltic paving concrete having a predetermined thickness on the surface of a sub-base; creating dormant zones of potential fracture at predetermined locations in the mat prior to compacting the compactable asphaltic paving concrete; and compacting the mat of compactable asphalt concrete to seal the dormant zones and provide a finished asphaltic pavement of predetermined density having a smooth traffic bearing top surface with the sealed dormant zones of potential fracture substantially concealed therein.
The invention also includes the finished asphaltic pavement produced by the process of forming a mat of compactable asphaltic paving concrete on the sub-base surface. The process creates dormant zones of potential fracture at predetermined locations in the mat prior to compacting the compactable asphaltic paving concrete. The process further involves compacting the mat of compactable asphalt to seal the dormant zones and provide a finished asphaltic pavement of predetermined density having a smooth traffic bearing surface with the sealed dormant zones of potential fracture substantially concealed therein.
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Frank Raczon--"Sawcut and seal may prevent reflective cracks"; Mar. 1989, Roads & Bridges, pp. 49-51.
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Richardson, Clifford--The Modern Asphalt Pavement, 1910, p. 490.
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