Date of Award

Spring 2010

Project Type

Thesis

Program or Major

Civil Engineering

Degree Name

Master of Science

First Advisor

Jo Sias Daniel

Abstract

Recycling has become a necessity in today's world as natural resources, quality materials, and landfills have become less accessible. This project looks at how varying percentages of Reclaimed Asphalt Pavement (RAP) affect the volumetric and mechanistic properties of an asphalt concrete mixture. Specimens were made with 0%, 15%, 25%, 40%, and 100% RAP, with 0% RAP used as the baseline condition. Based on statistical analysis, the 0% RAP specimens had significantly lower stiffness than the 40% RAP specimens and significantly lower strength than the 15%, 25% and 40% RAP specimens. The high air void content of the 100% RAP specimens made them incomparable with the other specimens. The voids in mineral aggregate and voids filled by asphalt showed an increasing trend as the RAP content was increased.

Compaction type was also studied in this project. Specimens that were laboratory compacted were statistically stiffer and stronger than field compacted specimens.

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