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Title:

Assessment of Crack Sealing Materials and Techniques for Epoxy Asphalt Pavement on Steel Bridges Decks

Accession Number:

01337425

Record Type:

Component

Abstract:

Crack is the main distress of the epoxy asphalt pavement on steel deck. It may reduce the serviceability and service life of the pavement and even the bridge if can't be treated appropriately. However, the crack treatments for the highway pavement are often copied to treat the steel deck pavement crack for the lack of sealing material and technique, and this leads to a certain failure. So a chemically cured sealant for epoxy asphalt pavement on steel deck is developed and the evaluation criteria for the sealant are also determined. Viscosity test, tensile test, pull-out test, tensile bond behavior test and shear bond behavior test are conducted in the laboratory, and the developed sealant is proved to have rather good work ability, bulk performance, interfacial performance and cooperative behavior with epoxy asphalt concrete. Bending beam test and fatigue test are also employed to assess the effect of different sealing techniques. The tests results show that the bending strengths of sealed beams don't vary a lot from the undamaged beams while their fatigue lives are significantly shorter than the undamaged ones. On the other hand, the completely-fractural beams have a better sealing effect than the partly-fractural beams, and the 10mmX10mm, 20mmX10mm types of sealant configurations lead to better sealing effect. At last, the fatigue equations of undamaged beams and sealed beams are regressed, and they have provided ways for the life prediction of the epoxy asphalt steel deck pavements before cracking and after sealing.

Supplemental Notes:

The DVD lists the title of this paper as: Assessment of Crack-Sealing Materials and Techniques for Epoxy Asphalt Pavement on Steel Bridges.

Monograph Accession #:

01329018

Report/Paper Numbers:

11-2419

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Chen, Leilei
Qian, Zhendong
Luo, Sang

Pagination:

14p

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 (17) ; Tables (4)

Subject Areas:

Bridges and other structures; Highways; Maintenance and Preservation; Pavements; I61: Equipment and Maintenance Methods

Source Data:

Transportation Research Board Annual Meeting 2011 Paper #11-2419

Files:

TRIS, TRB

Created Date:

Feb 17 2011 6:09PM