ACCELERATED PAVEMENT TESTING EVALUATION OF THE STRUCTURAL CONTRIBUTION OF FULL-DEPTH RECLAMATION MATERIAL STABILIZED WITH FOAMED ASPHALT

Published on Jan 1, 2004in Transportation Research Record1.029
· DOI :10.3141/1896-20
Stefan A Romanoschi (KSU: Kansas State University), Mustaque Hossain13
Estimated H-index: 13
(KSU: Kansas State University)
+ 1 AuthorsMichael Heitzman3
Estimated H-index: 3
Sources
Abstract
Research was conducted to determine the effectiveness of the use of foamed asphalt-stabilized reclaimed asphalt pavement from full-depth reclamation (FAS-FDR) as base material for flexible pavements. The experiment, conducted at the Civil Engineering Infrastructure Systems Laboratory of Kansas State University, consisted of constructing four pavements—one with a 9-in. conventional Kansas AB-3 granular base and one each with 6, 9, and 12 in. of FAS-FDR—and subjecting them to a full-scale accelerated pavement test. All four pavement sections were loaded with 500,000 axle load repetitions, at room temperature and under moderate moisture levels in the subgrade soil. The measured stresses and strains as well as the permanent deformation (rutting) observed on the pavement sections indicated that FAS-FDR can be used successfully as a base material. The measured rut depths and compres-sive vertical stresses at the top of the subgrade suggest that a 1-in. FAS-FDR base shows performance equivalent to that of a 1-in...
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