One-dimensional compression model for tire-derived aggregate using large-scale testing apparatus

Abstract

The engineering properties of tire derived aggregate (TDA) have been the subject of previous laboratory investigations; however, these investigations have been conducted primarily on TDA that is one-third the size of TDA used for engineering applications. In this study, the compression behavior of compacted TDA samples with a maximum particle size of 300 mm, typically used for engineering applications, has been investigated using custom-made testing apparatus designed to accommodate the large-sized TDA. Tire derived aggregate properties important to engineering applications, including compression behavior, the coefficient of lateral earth pressure at rest, and Poisson's ratio, are provided, while variation in the gradation of TDA particles and the tire type for TDA production are experiment variables. This study also proposes a method to prepare compacted TDA samples for large-scale testing.