Menu
Search
Filters
Close
Menu

03283 VIBRATION MONITORING TO DETECT CORROSION DEGRADATION IN REINFORCED CONCRETE BEAMS

Picture for 03283 VIBRATION MONITORING TO DETECT CORROSION
Available for download
Product Number: 51300-03283-SG
ISBN: 03283 2003 CP
Author: Manuel J. Fabela-Gallegos, David Vazquez-Vega, Andres A. Torres-Acosta, Miguel Martinez-Madrid
Industry: Highways & Bridges
$0.00
$20.00
$20.00
The goal of this investigation was to determine the effect of steel bar corrosion of reinforced concrete beams on the vibration frequency response. Simply supported concrete beams, with a rectangular transversal section and central zone contaminated with chlorides, were used in this investigation. The corrosion process was induced by adding table salt during concrete mixing, and further accelerated by impressing an anodic current to the steel reinforcement bar. During the corrosion-induced process, the beams were tested in flexure by applying a gradual load at the middle of each beam to deterlnine flexural stiffness. In addition, impact load testing was performed to determine the vibration parameters registered through several accelerometers placed on the beam. Natural frequencies were obtained from processing time history acceleration data. Both, loading-unloading and the vibration tests, were performed periodically until the target rebar radius loss due to corrosion was achieved. Preliminary results show a clear tendency in which the stiffness parameter EI decreases, and the natural frequencies shifts towards lower values as the corrosion of the embedded steel increases. Key words: Corrosion, Concrete Cracking, Durability, Natural Frequency, NDT, Reinforced Concrete, Vibration Measurements
The goal of this investigation was to determine the effect of steel bar corrosion of reinforced concrete beams on the vibration frequency response. Simply supported concrete beams, with a rectangular transversal section and central zone contaminated with chlorides, were used in this investigation. The corrosion process was induced by adding table salt during concrete mixing, and further accelerated by impressing an anodic current to the steel reinforcement bar. During the corrosion-induced process, the beams were tested in flexure by applying a gradual load at the middle of each beam to deterlnine flexural stiffness. In addition, impact load testing was performed to determine the vibration parameters registered through several accelerometers placed on the beam. Natural frequencies were obtained from processing time history acceleration data. Both, loading-unloading and the vibration tests, were performed periodically until the target rebar radius loss due to corrosion was achieved. Preliminary results show a clear tendency in which the stiffness parameter EI decreases, and the natural frequencies shifts towards lower values as the corrosion of the embedded steel increases. Key words: Corrosion, Concrete Cracking, Durability, Natural Frequency, NDT, Reinforced Concrete, Vibration Measurements
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 03287 INHIBITING CHLORIDE INDUCED CORROSION
Available for download

03287 INHIBITING CHLORIDE INDUCED CORROSION OF CONCRETE REBARS BY CALCIUM NITRATE ADDITION

Product Number: 51300-03287-SG
ISBN: 03287 2003 CP
Author: H. Justnes
$20.00
Picture for 03298 COMPARISON OF THE CORROSION RESISTANCE
Available for download

03298 COMPARISON OF THE CORROSION RESISTANCE OF SELECTED METALLIC REINFORCING BARS FOR EXTENSION OF SERVICE LIFE OF FUTURE CONCRETE BRIDGES- IN OUTDOOR CONCRETE BLOCKS

Product Number: 51300-03298-SG
ISBN: 03298 2003 CP
Author: Gerardo G. Clemena, Y. Paul Virmani
$20.00
Picture for 02228 CORROSION PROTECTION OF NEW...
Available for download

02228 CORROSION PROTECTION OF NEW REINFORCED CONCRETE STRUCTURES

Product Number: 51300-02228-SG
ISBN: 02228 2002 CP
Author: Prof. Efim Ya. Lyublinski, Dr. Donald A. Kubik, and Chuck M. Zvosec
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support