Title:
Optimization of Concrete Mixtures Containing Reclaimed Asphalt Pavement
Author(s):
Michael Berry, Bethany Kappes, and Lenci Kappes
Publication:
Materials Journal
Volume:
112
Issue:
6
Appears on pages(s):
723-733
Keywords:
central composite design; concrete pavement; design of experiments; proportioning; reclaimed asphalt pavement; response surface methodology
DOI:
10.14359/51687854
Date:
11/1/2015
Abstract:
This study was focused on evaluating the feasibility of using minimally processed reclaimed asphalt pavement (RAP) as aggregate replacement in concrete pavements. A statistical experimental design procedure (response surface methodology) was used to investigate the effects of key mixture parameters on concrete responses. The response surfaces generated from this analysis adequately characterized the behavior of these concrete mixtures, and were ultimately used to develop optimum mixtures to meet varying performance criteria. In laboratory tests, the optimum mixtures performed well and as predicted, thus validating the feasibility of using RAP in this application and this mixture design methodology.