MPC Research Reports
Report Details

Title:	Recycled Glass Utilization in Highway Construction
Authors:	Isaac Finkle and Khaled Ksaibati
University:	University of Wyoming
Publication Date:	Dec 2007
Report #:	MPC-07-192
Project #:	MPC-258, MPC-247
TRID #:	01090139
Keywords:	coarse aggregates, crushed aggregates, glass fibers, moisture content, recycled materials, road construction, rural areas, rural highways, stone

Abstract

The utilization of recycled glass in highway applications has been occurring over the past couple of decades. In recent years, the discovery of several economic and environmental benefits could increase the use of recycled glass in highway construction, making the evaluation of the engineering properties of glass and aggregate mixes necessary. The uses of recycled glass have varied widely, depending on the specific application. Crushed recycled glass, or cullet, has been used independently, and has also been blended with natural stone construction aggregate at different replacement rates. This research provides an evaluation of the potential use of glass cullet when used in combination with natural base course aggregate for roadway construction. This research studied the strength and moisture/density characteristics of different glass and aggregate blends to examine the effects of blending glass cullet into base course aggregate. Two sources of natural aggregate were tested: one being crusher run and very angular in nature; and the other being pit-run and rounded in nature.