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Computer Assisted Pavement

by E. J. Miller, Pres.; 2R Engineering, Carlsbad, CA 92008,
Hannes H. Richter,
David A. Purkis, 2R Engineering, Carlsbad, CA 92008,


Serial Information: Civil Engineering—ASCE, 1986, Vol. 56, Issue 9, Pg. 75-77


Document Type: Feature article

Abstract:

In Rancho Palos Verdes, Calif. a 4,300 ft. long test installation of the Contained Rock Asphalt Mat (CRAM) Pavement System is expected to have a 50 year life. It cost a third less than the estimate for a comparable conventional pavement because less materials are used to their maximum potential, efficiently distributing the stresses and strains imposed by wheel loads. The CRAM pavement is palced in four layers. A modified dense graded asphalt concrete layer is spread over a conventionally prepared subgrade, then a layer of open graded aggregate, a dense graded aggregate and, finally, a dense graded asphalt wearing surface.

Subject Headings: Pavements | Vehicle loads | Construction materials | Asphalt pavements | Asphalt concrete | Aggregates | Vehicle-pavement interaction

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