Application of Reclaimed Asphalt Pavement and Recycled Asphalt Shingles in Hot-Mix Asphalt: National and International Perspectives Current Practice. Papers from a Workshop. Transportation Research Circular, Number E-C188.

摘要

Given the wide use of reclaimed asphalt pavement (RAP), and the increasing use of recycled asphalt shingles (RAS) in asphalt mixtures, the TRB Committees on Characteristics of Nonasphalt Components of Asphalt Paving Mixtures, Characteristics of Asphalt Materials, and General Issues in Asphalt Technology jointly sponsored a workshop on the use of RAP and RAS in asphalt mixtures at the 93rd Annual Meeting of the Transportation Research Board, that was held January, 12–16, 2014, in Washington, D.C. The workshop provided a forum for the exchange of recent research and development results among researchers, practitioners, and state departments of transportation engineers involved in material characterization and field validation for short- and long-term performance of asphalt mixtures containing RAP–RAS from both national and international perspectives. Seven presentations representing five countries were invited. This document contains six technical papers and summaries of presentations from the workshop. Some of the studies presented at the workshop are ongoing projects, and as such, definitive conclusions may not be available until later stages of the research. It is the sincere hope of the three sponsoring committees that the materials contained in this document will help to further the discussion of using RAP and RAS to make better, more sustainable asphalt mixtures, and by default, asphalt pavements.