Full-Depth, Full-Width Design, and Prestressed Concrete Pave the Way for Arizona's Highways

by Gene R. Morris, (F.ASCE), Engr. of Research; Arizona Dept. of Transportation, Phoenix, Arizona,

Serial Information: Civil Engineering—ASCE, 1978, Vol. 48, Issue 3, Pg. 76-79

Document Type: Feature article


In an attempt to resolve design problems of Arizona's non-reinforced portland cement concrete pavements, a series of test installations are being made involving a comparison of the conventional non-reinforced concrete pavement, a thicker, full-width (paved shoulders) non-reinforced concrete pavement, and prestressed post-tensioned full-width concrete pavement. Skid resistance surfaces (developed in previous test projects) and shoulder joint problems have been eliminated with the full-width pavements. An explanation is presented of the theoretical rationale in support of the thicker concrete pavement to improve upon faulting and curling problems and an explanation in support of the advantages inherent in the construction of prestressed concrete pavements. The design of the test installations is discussed along with the cost comparison indicating the cost competitiveness of the alternate designs.

Subject Headings: Concrete pavements | Pavement design | Highway and road design | Prestressing | Prestressed concrete | Comparative studies | Highway and road shoulders | Portland cement | Arizona | United States

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