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Title:

Investigation of High and Low Los Angeles Values and Alternate Gradations for Open-Graded Friction Course Mixtures

Accession Number:

01552736

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Open Graded Friction Course (OGFC) mixes with high air voids are mainly used to provide better service on the highway pavement during the rainy weather through draining water from the surface of the pavement. OGFC mixtures have been used throughout the USA since the 1970s. The objective of this study was to investigate performance characteristics of one low Los Angeles (L.A.) Abrasion aggregate compared to three high L.A. Abrasion aggregates as measured by various laboratory mix testing procedures to determine if overall OGFC mix performance was affected by an aggregate durability standpoint. The main tests include moisture susceptibility, Asphalt Pavement Analyzer (APA) rut depth, permeability, Cantabro loss, and breakdown in the lab and asphalt plant of OGFC materials. The test results indicated that the high L.A. materials performed as well as or better than the low L.A. material (Control). In addition, various blends of similarly-sized aggregates perform equally as well as the current South Carolina Department of Transportation (SCDOT) OGFC blend based on the limited laboratory testing conducted in this study. In the field testing, both the low L.A. Abrasion aggregate and High L.A. aggregates exhibited significant breakdown as measured from laboratory results of samples taken at various points in the production process as well as from visual observations during sampling.

Supplemental Notes:

This paper was sponsored by TRB committee AFK40 Characteristics of Asphalt-Aggregate Combinations to Meet Surface Requirements. Alternate title: Investigation of High and Low Los Angeles Values and Alternate Gradations for Open Graded Friction Course Mixtures.

Monograph Accession #:

01550057

Report/Paper Numbers:

15-4695

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Herndon, David A
Xiao, Feipeng
Amirkhanian, Serji
Wang, Hao

Pagination:

20p

Publication Date:

2015

Conference:

Transportation Research Board 94th Annual Meeting

Location: Washington DC, United States
Date: 2015-1-11 to 2015-1-15
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Identifier Terms:

Los Angeles Abrasion Test

Uncontrolled Terms:

Moisture susceptibility; Rut depth

Subject Areas:

Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials; I36: Aggregates

Source Data:

Transportation Research Board Annual Meeting 2015 Paper #15-4695

Files:

TRIS, TRB, ATRI

Created Date:

Dec 30 2014 1:33PM