Reference Specifications for Civil Engineering Work 2001



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1.3Definitions


Pavement: That part of the road placed above the subgrade for the support of, and to form a running surface for, vehicular traffic. The pavement comprises one or more layers of material referred to as surfacing, base course and sub base course.

Base course: That portion of the pavement immediately supporting the surfacing. It is and principally intended to directly support the traffic loads.

Sub base course: That portion of the pavement below the base course to provide additional thickness of material required above the subgrade. It is principally intended to distribute to the subgrade the loads from overlying courses.

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