ASR/DEF-damaged bent caps : shear tests and field implications.

Deschenes, Dean J.; Bayrak, Oguzhan; Folliard, Kevin J.; University of Texas. Ferguson Structural Engineering Laboratory

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ASR/DEF-damaged bent caps : shear tests and field implications.

2009-08-01
By Deschenes, Dean J. ; Bayrak, Oguzhan ; Folliard, Kevin J.

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English

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Creators:

Deschenes, Dean J. ; Bayrak, Oguzhan ; Folliard, Kevin J.

Deschenes, Dean J. ; Bayrak, Oguzhan ; Folliard, Kevin J. Less -
Corporate Creators:

University of Texas. Ferguson Structural Engineering Laboratory
Corporate Contributors:

Texas. Dept. of Transportation
Subject/TRT Terms:

[+]

Bents Deterioration Pavement Cracking Reinforced Concrete Spalling
Publication/ Report Number:

12-8XXIA006
Resource Type:

Tech Report
Geographical Coverage:

Texas
OCLC Number:

663477258
Corporate Publisher:

University of Texas
NTL Classification:

NTL-HIGHWAY/ROAD TRANSPORTATION-Materials;NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance;NTL-HIGHWAY/ROAD TRANSPORTATION-Design;NTL-HIGHWAY/ROAD TRANSPORTATION-Construction and Maintenance;
Abstract:

Over the last decade, a number of reinforced concrete bent caps within Houston, Texas have exhibited premature concrete damage (cracking, spalling and a loss of material

strength) due to alkali-silica reaction (ASR) and/or delayed ettringite formation (DEF).

The alarming nature of the severe surface cracking prompted the Houston District of the Texas Department of Transportation to initiate an investigation into the structural implications of the premature concrete damage. Specifically, an interagency contract with

the University of Texas at Austin charged engineers at Ferguson Structural Engineering Laboratory to: 1. Establish the time-dependent relationship between ASR/DEF deterioration and the shear capacity of affected bridge bent caps. 2. Develop practical recommendations for structural evaluation of in-service bridge bent caps affected by ASR and/or DEF.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

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urn:sha256:9959563d67ae1699cab642127de3d074e0f23062421634447025adde65160e47
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https://rosap.ntl.bts.gov/view/dot/17244/dot_17244_DS1.pdf
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ASR/DEF-damaged bent caps : shear tests and field implications.

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