Behavior of Construction and Demolition Debris in Base and Subbase Applications

by W. J. Papp, Jr., (M.ASCE), Dept. of Civil and Envtl. Eng., The State University of New Jersey, Piscataway, NJ 08854-8014, United States,
M. H. Maher, (M.ASCE), Dept. of Civil and Envtl. Eng., The State University of New Jersey, Piscataway, NJ 08854-8014, United States,
T. A. Bennert, (M.ASCE), Dept. of Civil and Envtl. Eng., The State University of New Jersey, Piscataway, NJ 08854-8014, United States,
N. Gucunski, (M.ASCE), Dept. of Civil and Envtl. Eng., The State University of New Jersey, Piscataway, NJ 08854-8014, United States,



Document Type: Proceeding Paper

Part of: Recycled Materials in Geotechnical Applications

Abstract:

The design performance of a pavement system is evaluated based on the predicted number of load repetitions it will be subjected to throughout its service life. Mechanistic pavement design predicts pavement failure due to cracking and/or rutting. The pavement system includes a bound bituminous layer and unbound base, subbase, and subgrade layer. An investigation is carried out on two types of constructed and demolition debris, recycled asphalt pavement (RAP) and recycled concrete (RCA). A comparison of these two construction with dense graded aggregate (DGA) revealed that RAP and RCA yielded higher resilient modulus values than DGA. Laboratory test results concluded these models could be used for evaluating resilient modulus and permanent deformation.

Subject Headings: Pavement design | Asphalt pavements | Recycling | Concrete pavements | Asphalt concrete | Resilient modulus | Pavement rutting

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