Performance Evaluations of Pavement Underlying Chip-Seal: Laboratory Testing on Pavement Cores

Document Type

Conference Proceeding

Publication Date

8-31-2020

Department

Department of Civil, Environmental, and Geospatial Engineering

Abstract

The objective of this study is to preliminarily analyze the premature stripping in asphalt pavement underlying chip-seal, based on laboratory testing on pavement cores from Minnesota. The newly developed Michigan Tech’s interface bond test (IBT) was used in characterizing the interface bond strength of chip-seal and the direct tensile strength of asphalt pavements. It should be noted that when the direct tensile strength of the asphalt pavement was evaluated via the testing set-up of IBT, the fractures occurred in the asphalt pavement, not in the chip-seal. Based on the laboratory results, it is concluded that if there is no damage to the chip-seals, the chip-seals will be excellent in protecting the asphalt pavement. In contrast, if partial damage occurs in the chip-seal, this will accelerate the damage in the pavement.

Publication Title

International Conference on Transportation and Development 2020

Share

COinS