Menu
Search
Filters
Close
Menu

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

Picture for 03298 COMPARISON OF THE CORROSION RESISTANCE
Available for download
Product Number: 51300-03298-SG
ISBN: 03298 2003 CP
Author: Gerardo G. Clemena, Y. Paul Virmani
Industry: Highways & Bridges
$0.00
$20.00
$20.00
To meet the challenge of the new design life of 100 years for major concrete bridges in the U.S., economical and corrosion resistant reinforcing bars will be needed. Preliminary data from an investigation funded by the U.S. Federal Highway Administration that was aimed at identifying reinforcing bars that will have better performance than the current epoxy-coated bars had suggested that stainless steel clad bars could be such a bar. For the purpose of verifying those results, the behavior of clad bars in test concrete blocks that were subjected to weekly cycles of ponding with a saturated salt solution and drying was compared with those of three solid stainless steel (316LN, 304, and 2205) bars and the traditional carbon steel bars. The behaviors of these bars were monitored by regular measurements of the macrocell current, corrosion rate, and open- circuit potential, made throughout the first 700 days of exposure. The data indicated that the clad bars exhibited practically the same good corrosion resistance as the three solid stainless steel bars did. While the carbon steel bars had started to corrode even after just 90 days of exposure, the clad bars and all the other bars have yet to show any discernible corrosion activity even after 700 days. Comparison of the estimated chloride concentrations in the concrete blocks at these two time benchmarks indicated that the clad bars and the stainless steel bars were able to tolerate at least 15 times more of the corrosive chloride ions than the carbon steel bars did. Key Words: Concrete bridges, corrosion of reinforcing bars, stainless steel bars, carbon steel bars, clad steel bars
To meet the challenge of the new design life of 100 years for major concrete bridges in the U.S., economical and corrosion resistant reinforcing bars will be needed. Preliminary data from an investigation funded by the U.S. Federal Highway Administration that was aimed at identifying reinforcing bars that will have better performance than the current epoxy-coated bars had suggested that stainless steel clad bars could be such a bar. For the purpose of verifying those results, the behavior of clad bars in test concrete blocks that were subjected to weekly cycles of ponding with a saturated salt solution and drying was compared with those of three solid stainless steel (316LN, 304, and 2205) bars and the traditional carbon steel bars. The behaviors of these bars were monitored by regular measurements of the macrocell current, corrosion rate, and open- circuit potential, made throughout the first 700 days of exposure. The data indicated that the clad bars exhibited practically the same good corrosion resistance as the three solid stainless steel bars did. While the carbon steel bars had started to corrode even after just 90 days of exposure, the clad bars and all the other bars have yet to show any discernible corrosion activity even after 700 days. Comparison of the estimated chloride concentrations in the concrete blocks at these two time benchmarks indicated that the clad bars and the stainless steel bars were able to tolerate at least 15 times more of the corrosive chloride ions than the carbon steel bars did. Key Words: Concrete bridges, corrosion of reinforcing bars, stainless steel bars, carbon steel bars, clad steel bars
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 03312 MECHANISM OF CORROSION OF STEEL
Available for download

03312 MECHANISM OF CORROSION OF STEEL STRANDS IN POST TENSIONED GROUTED ASSEMBLIES

Product Number: 51300-03312-SG
ISBN: 03312 2003 CP
Author: Alberto Sagüés, Rodney G. Powers, Hongbin Wang
$20.00
Picture for 03283 VIBRATION MONITORING TO DETECT CORROSION
Available for download

03283 VIBRATION MONITORING TO DETECT CORROSION DEGRADATION IN REINFORCED CONCRETE BEAMS

Product Number: 51300-03283-SG
ISBN: 03283 2003 CP
Author: Manuel J. Fabela-Gallegos, David Vazquez-Vega, Andres A. Torres-Acosta, Miguel Martinez-Madrid
$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