Flexural strength and fatigue of steel fiber reinforced concrete (2004 Hale Boggs deck).

Eggers, John; Rupnow, Tyson D.; Louisiana Transportation Research Center

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Flexural strength and fatigue of steel fiber reinforced concrete (2004 Hale Boggs deck).

2008-12-01
By Eggers, John ; Rupnow, Tyson D.

[PDF-1.66 MB]

English

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Details:

Creators:

Eggers, John ; Rupnow, Tyson D.

Eggers, John ; Rupnow, Tyson D. Less -
Corporate Creators:

Louisiana Transportation Research Center
Corporate Contributors:

Louisiana. Dept. of Transportation and Development ; United States. Federal Highway Administration

Louisiana. Dept. of Transportation and Development ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Bridge Decks Concrete Bridges--Floors--Testing Fiber-reinforced Concrete--Fatigue--Louisiana Fiber-reinforced Concrete--Louisiana--Testing Fiber Reinforced Concrete Flexural Strength Flexure
Publication/ Report Number:

FHWA/LA/08-438
Resource Type:

Tech Report
Geographical Coverage:

Louisiana
Edition:

Final report; Sept. 1, 2004-Dec. 31, 2007
Corporate Publisher:

Louisiana Transportation Research Center
Abstract:

Through its history, a variety of wearing surface systems for the orthotropic steel deck of the Luling Bridge (aka Hale Boggs

Bridge) have been built and studied. The main problem with these systems was they did not last the expected service life (20

+ years).

In 1999, a short test section was installed using steel reinforced concrete, and even though the reinforcing steel was not

optimally designed and exhibited cracks, it is still serviceable. Based on the performance of this test section installed in 1999,

a new test section was installed in 2004. This new test section is a steel fiber reinforced concrete (SFRC) deck. The

composition of the deck system is ½ in. of bridge deck steel, a thin (approximately ⅛ in.) layer of epoxy with impregnated

aggregate and 3½ in. of SFRC.

This study focused on the evaluation of the steel fiber reinforced concrete that was used in the new test section on the Luling

Bridge. Test specimens of the same material that was to be used in construction of the wearing surface test section were

produced. The specimens were then subjected to various test procedures, flexure strength and fatigue, flexural toughness, and

chloride ion penetration among others.

One unexpected consequence discovered upon initial testing was that the bending failure mechanism of the composite deck

system was not in the SFRC, as projected, but in the epoxy layer. Furthermore, repeated load fatigue testing of the specimens

was inconclusive, but did reinforce the failure mechanism shown in previous results. That being said, no inference to

projected fatigue life can be made from the laboratory results to the field results.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:4c0ad8a2ade7a976de03b72091a552a9fab8e73b56acc0aa588ae2610501268c
Download URL:

https://rosap.ntl.bts.gov/view/dot/16785/dot_16785_DS1.pdf
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Flexural strength and fatigue of steel fiber reinforced concrete (2004 Hale Boggs deck).

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