TRB Pubsindex
Text Size:
x

« Prev Next »

Return to Results | New Search

Bookmark and Share

Title:

Precast Concrete Panels for Rapid Repair of Airfield Rigid Pavements

Accession Number:

01333268

Record Type:

Component

Abstract:

Many airfield pavements are constructed with Portland Cement Concrete (PCC). Scheduled maintenance helps restore performance of deteriorated PCC slabs allowing optimal flight operations. Severely deteriorated PCC slabs require a well formulated plan to efficiently and effectively restore damaged slabs. This study investigates the feasibility and the efficiency of using different precast concrete panel installation techniques. High density polymer (HDP) foam and flowable fill were selected as the leveling materials after the literature review. The precast panels were installed using three installation techniques (conventional injection, deep injection and flowable fill) to study their impact on the performance of the repaired sections characterized by load transfer efficiency, joint stiffness and deformation energy dissipated through the pavement foundation. Heavy Weight Deflectometer and F-15 gear simulator were used to determine the stiffness properties and accumulation of plastic deformations after each load interval. Decay of joint stiffness and load transfer efficiency as well as increase in deformation energy were calculated as a function of the number of load applications. The results indicate significant increase in the deformation energy and considerable loss of joint stiffness with number of load applications for slabs installed using flowable fill. Precast slabs installed with HDP foam performed better than those installed using flowable fill. HDP deep injection installed slabs performed better than those installed with HDP conventional method. This study suggests that precast concrete panels leveled with high density polyurethane foam and installed using deep injection method performed best compared to other design permutations.

Monograph Accession #:

01329018

Report/Paper Numbers:

11-1395

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Ashtiani, Reza
Saeed, Athar
Hammons, Michael I

Pagination:

20p

Publication Date:

2011

Conference:

Transportation Research Board 90th Annual Meeting

Location: Washington DC, United States
Date: 2011-1-23 to 2011-1-27
Sponsors: Transportation Research Board

Media Type:

DVD

Features:

Figures; Photos; References (11) ; Tables (2)

Uncontrolled Terms:

High density polyurethane

Subject Areas:

Aviation; Maintenance and Preservation; Pavements; I60: Maintenance

Source Data:

Transportation Research Board Annual Meeting 2011 Paper #11-1395

Files:

TRIS, TRB

Created Date:

Feb 17 2011 5:47PM