Performance Evaluation of Bituminous Surface Treatment Using Third-Scale Model Mobile Loading Simulator

Abstract

This paper presents a new test protocol for the performance evaluation of bituminous surface treatments (BSTs) using the third-scale Model Mobile Loading Simulator (MMLS3). The BST performance characteristics covered by this protocol include aggregate retention, bleeding, skid resistance, aggregate embedment depth, cracking, and rutting. In this study, the new MMLS3 BST performance test method was applied to evaluate effects of various mix parameters on aggregate retention and bleeding; these parameters include aggregate and emulsion application rates, fines content, and aggregate gradation. Results demonstrate that the BST performance test method developed in this study is an excellent means of supporting current BST design and evaluating effects of various factors on performance of BSTs.