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Title:

Evaluation of Joint Sealant Effectiveness on Moisture Infiltration and Erosion Potential in Concrete Pavement

Accession Number:

01475144

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Effectiveness of sealants to protect jointed concrete pavement against erosion related distresses has been a focus of great interest recently. An experimental program was carried out on the Riverside Campus of Texas A&M University to study the effectiveness of different sealant types to limit infiltration of the joint under different joint openings. The experiments included three main sealant types; silicon, hot-pour and preformed sealants with different joint well and debonding conditions. A movable joint system was employed to simulate joint widening. The results show the importance of having sealants in jointed concrete pavements. The unsealed joints have significantly higher flow rates when compared to damaged sealants. Sealants are less effective when there are extreme joint openings. The preformed sealants showed better performance. Installation quality is discussed as a critical factor in joint sealant effectiveness. Experiments also showed that sealants that are installed on dirty joint walls cannot develop a good bond to the joint well and consequently show poor performance. The effect of joint seal installation and the drainage quality of the pavement system was employed to adjust a faulting prediction model making it more representative of the effect of moisture at the interface on performance. The three main elements of erosion are erodibility of the base/subbase, number of wet days, and traffic are included in the model. The model represents the effect of sealing joints on concrete pavement performance.

Supplemental Notes:

This paper was sponsored by TRB committee AHD25 Sealants and Fillers for Joints and Cracks.

Monograph Accession #:

01470560

Report/Paper Numbers:

13-3489

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Neshvadian Bakhsh, Keivan
Zollinger, Dan G
Jung, Youn-Su

Pagination:

15p

Publication Date:

2013

Conference:

Transportation Research Board 92nd Annual Meeting

Location: Washington DC, United States
Date: 2013-1-13 to 2013-1-17
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Subject Areas:

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

Source Data:

Transportation Research Board Annual Meeting 2013 Paper #13-3489

Files:

TRIS, TRB, ATRI

Created Date:

Feb 5 2013 12:42PM