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Benefits
Applications
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Concrete Whitetopping Drainage and Grade Problems
In some cases, it may not be possible to raise the elevations of existing curbs or building entrances. In these situations, the existing pavement abutting the structure should be removed in a tapered section out to the location of the first joint in the concrete over-lay. Underlying materials in the section should be adequately compacted. At vehicle entrances, the thick end of the tapered section should be excavated to allow for an additional 20-25% thickness of the concrete. This increased thickness compensates for the support lost by removing the original pavement material.
Next >> Jointing
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ConcreteAnswers for Architects, Engineers and Developers:
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About NRMCA
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Privacy Statement
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During the design
process, the engineer should check the original design to ensure that catch
basins and storm drainage structures are adequate to carry away the anticipated stormwater. The overlay should be graded to provide a minimum fall of 1/8-inch
per foot toward the drainage structure. The drain inlets and manholes should be
raised to match the elevation of the new pavement.
