TRB Pubsindex
Text Size:
x

« Prev Next »

Return to Results | New Search

Bookmark and Share

Title:

Investigation on the Performance of Fiber Reinforced Open-Graded Friction Course (OGFC) Mixtures

Accession Number:

01661432

Record Type:

Component

Abstract:

This investigation examines the influences on performance of Open-Graded Friction Course by adding four different fibers (lignin, polyester, basalt and polyacrylonitrile) and three different contents (1.5‰, 3‰ and4.5‰). Laboratory tests of Schellenberg binder drainage test, Cantabro test, Hamburg wheel tracking test and four-point beam bending test were carried, respectively, to evaluate fiber’s absorption, raveling resistance, rutting resistance and fatigue performance of mixtures. The result shows that the addition of fiber can significantly improve the road performance of the mixtures, reflecting on the decrease of binder drainage and Cantabro loss, the increase of creep rate and fatigue life. The absorption and tensile strength of fibers play a vital role in the performance enhancement of mixtures, where the absorption stabilizes the free asphalt and the tensile strength has an effect of reinforcement. Lignin fiber enhances the performance of the mixtures through its own strong absorption capacity, and basalt fiber relies on its high strength. As for the content, there exists an optimal content for each fiber, exceeding which will be harmful to the performance of mixtures. The basalt fiber is easy to agglomerate into a ball in the mixing with aggregates when the fiber content is high, resulting the decrease of performance, and the low melt point makes polyacrylonitrile fiber characteristic change in the high temperature mixing, dropping the fatigue performance under the repeated loading. The polyester fiber possesses proper absorption and tensile strength, resulting in the best of comprehensive performance of OGFC mixtures. For OGFC in this study, polyester fiber with 3‰ was the best choice to improve the pavement performance, which can be recommended to the field road engineering.

Supplemental Notes:

This paper was sponsored by TRB committee AFK30 Standing Committee on Non-Binder Components of Asphalt Mixtures.

Report/Paper Numbers:

18-04077

Language:

English

Authors:

Zhang, Jiawei
Huang, Weidong

Pagination:

14p

Publication Date:

2018

Conference:

Transportation Research Board 97th Annual Meeting

Location: Washington DC, United States
Date: 2018-1-7 to 2018-1-11
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Photos; References; Tables

Subject Areas:

Highways; Materials; Pavements

Source Data:

Transportation Research Board Annual Meeting 2018 Paper #18-04077

Files:

TRIS, TRB, ATRI

Created Date:

Jan 8 2018 11:00AM