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Fly Ash Pavements, Run Ways to Take Off�

by Virginia Fairweather, Asst. Editor; Civil Engineering, 345 E. 47th St., New York, NY 10017,
Marvin L. Byington, (A.M.ASCE), Project Engr.; Port of Portland, Portland, Ore.,


Serial Information: Civil Engineering—ASCE, 1975, Vol. 45, Issue 8, Pg. 57-58


Document Type: Feature article

Abstract:

Significant cost savings were realized in paving a new container terminal storage yard in Portland, Oregon. A computer analysis showed that a multi-layer pavement would be best, with each level having a diminishing modulus of elasticity-lowest being closest to the subgrade modulus. This technique minimizes stress in each layer. More economical materials may be used in the lower layers. At Portland, three layers were composed of lime-fly ash-cement and the uppermost layer is thin asphaltic concrete.

Subject Headings: Pavements | Fly ash | Elastic analysis | Computer analysis | Subgrades | Lime | Elasticity and Inelasticity

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