Evaluation of Permeability of Superpave® Asphalt Mixtures
Document Type
Conference Proceeding
Publication Date
1-1-2003
Abstract
The presence of water in a pavement system is detrimental to its life. Permeable asphalt concrete pavement structures are vulnerable to stripping, which causes premature damage under heavy traffic. To assess the permeability of asphalt mixtures, a research study was conducted at the Louisiana Transportation Research Center (LTRC). Laboratory permeability tests were performed on field cores taken from 17 Superpave® projects in Louisiana. An LTRC-modified version of Karol-Warner's falling-head permeameter was used to conduct the permeability test. A sensitivity analysis was performed to relate the permeability test results to mixture volumetric properties such as air void content, compaction effort, mixture gradation, and lift thickness. A statistical regression model was developed to predict the permeability of Superpave mixtures from the mixture volumetric properties. The model successfully predicted the coefficient of permeability of asphalt mixtures from a separate data set that was not included in the model development.
Publication Source (Journal or Book title)
Transportation Research Record
First Page
50
Last Page
58
Recommended Citation
Mohammad, L., Herath, A., & Huang, B. (2003). Evaluation of Permeability of Superpave® Asphalt Mixtures. Transportation Research Record (1832), 50-58. https://doi.org/10.3141/1832-07