Citation

Barenberg EJ, Lane R, Woodman GR. Proc. Int. Tech. Conf. Enhanced Safety Vehicles 1992; 1992: 284-290.

Copyright

(Copyright © 1992, In public domain, Publisher National Highway Traffic Safety Administration)

DOI

unavailable

PMID

unavailable

Abstract

Pavement design is basically a judgement by the design agency. This paper illustrates how basic principles can be used to establish guidelines to assist the designer in these decisions. Specifically it illustrates the relative benefits of such factors as subbase thickness, slab thickness, concrete strength, and load transfer efficiency. Thickness design curves were developed for three aircraft, two concrete strengths, two subgrade conditions, two levels of load transfer efficiency. All designs were based on slabs on 200 mm thick granular layer and 150 mm thick rolled lean concrete. Design thicknesses were developed for both 75 and 85 percent reliability assuming two failure criteria (1 and 10 percent slabs cracked). Figures are provided which show slab thicknesses for 85 percent reliability and 10 percent slab cracked. The relative influence of concrete strength, subgrade support and load transfer efficiency respectively on the design slab thicknesses are also illustrated, as are the effects of varying design reliability and percent slabs cracked.