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Title:

Evaluation of Compaction Characteristics of Unbound Material Using Superpave Gyratory Compactor During Construction and Trafficking

Accession Number:

01151280

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

The compaction characteristics of the unbound material underlying the flexible pavement have been found to be critical to the performance of the pavement structure. This is especially so for airport pavements subjected to heavy aircraft loads. From previous tests at the National Airport Pavement Test Facility (NAPTF), it was found that the subbase experienced excessive compaction during trafficking. This study focused on studying the compaction characteristics of the subbase material using the Superpave Gyratory Compactor (SGC) and correlating the measured performance with field performance data. Since the SGC has not been widely used for studying the performance of unbound material, the compaction characteristics in the Superpave Gyratory Test were calibrated to field compaction of the subbase material during construction at similar moisture contents. The field data collected includes density measurements with each pass of the roller during compaction and the deflection of the pavement structure during aircraft trafficking. This is correlated with the data from the SGC including changes in density with additional energy input and it was found that the SGC can be used as a suitable predictor of compaction characteristics of unbound material. This paper provides the airport pavement designers the efficacy of using the SGC as a means of evaluating the performance of unbound material during construction and trafficking.

Monograph Accession #:

01147878

Report/Paper Numbers:

10-1794

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Sukumaran, Beena
McGarvey, Kevin
Hurt, Casey
Lambert, Nicholas
Mehta, Yusuf A

Pagination:

11p

Publication Date:

2010

Conference:

Transportation Research Board 89th Annual Meeting

Location: Washington DC, United States
Date: 2010-1-10 to 2010-1-14
Sponsors: Transportation Research Board

Media Type:

DVD

Features:

Figures; Photos; References (9) ; Tables (2)

Uncontrolled Terms:

Gyratory compaction; Unbound materials

Subject Areas:

Aviation; Pavements; I22: Design of Pavements, Railways and Guideways

Source Data:

Transportation Research Board Annual Meeting 2010 Paper #10-1794

Files:

TRIS, TRB

Created Date:

Jan 25 2010 10:49AM