Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

02255 EXTENDING THE LIFE OF CONCRETE PATCH REPAIR WITH CHEMICALLY ENHANCED ZINC ANODES

Picture for 02255 EXTENDING THE LIFE OF CONCRETE PATCH...
Available for download
Product Number: 51300-02255-SG
ISBN: 02255 2002 CP
Author: Jack Bennett and Caroline Talbot
$0.00
$20.00
$20.00
Discrete embedded zinc anodes have been proposed to extend the service life of concrete patch repair by providing localized cathodic protection to adjacent steel. The performance of such anodes must be enhanced by chemical agents, which maintain the zinc in an electrochemically active state and increase the flow of protective current to the steel. In this study, the effects of various chemical agents were studied by monitoring both the flow of current and steel polarization on laboratory test blocks. Protective current for test blocks containing zinc anodes and lithium-based activating agents at both 55% and 80% relative humidity can be ranked as follow: LiBr > LiNO3 > LiOH. Mixtures of LiBr and LiNO3 were also found to be very effective. Potential decay tests have demonstrated that zinc anodes activated by the most effective agents are capable of polarizing reinforcing steel up to 100 mV, and are therefore likely to have a significant beneficial effect on the service life of concrete patch repair. Keywords: anodes, cathodic protection, concrete, concrete patch repair, corrosion, lithium chemicals, reinforcing steel, zinc.
Discrete embedded zinc anodes have been proposed to extend the service life of concrete patch repair by providing localized cathodic protection to adjacent steel. The performance of such anodes must be enhanced by chemical agents, which maintain the zinc in an electrochemically active state and increase the flow of protective current to the steel. In this study, the effects of various chemical agents were studied by monitoring both the flow of current and steel polarization on laboratory test blocks. Protective current for test blocks containing zinc anodes and lithium-based activating agents at both 55% and 80% relative humidity can be ranked as follow: LiBr > LiNO3 > LiOH. Mixtures of LiBr and LiNO3 were also found to be very effective. Potential decay tests have demonstrated that zinc anodes activated by the most effective agents are capable of polarizing reinforcing steel up to 100 mV, and are therefore likely to have a significant beneficial effect on the service life of concrete patch repair. Keywords: anodes, cathodic protection, concrete, concrete patch repair, corrosion, lithium chemicals, reinforcing steel, zinc.
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 97250 THE USE OF A SACRIFICIAL ZINC ANODE
Available for download

97250 THE USE OF A SACRIFICIAL ZINC ANODE FOR CATHODIC PROTECTION OF STEEL IN REINFORCED CONCRETE

Product Number: 51300-97250-SG
ISBN: 97250 1997 CP
Author: R. B. Hartman, W. H. Hillier
$20.00
Picture for 98640 CHEMICAL ENHANCEMENT OF METALLIZED ZINC
Available for download

98640 CHEMICAL ENHANCEMENT OF METALLIZED ZINC ANODE PERFORMANCE

Product Number: 51300-98640-SG
ISBN: 98640 1998 CP
Author: Jack Bennett
$20.00
Picture for 00810 ANODES FOR CATHODIC PROTECTION Of
Available for download

00810 ANODES FOR CATHODIC PROTECTION Of REINFORCED CONCRETE

Product Number: 51300-00810-SG
ISBN: 00810 2000 CP
Author: S.J. Bullard, B.S. Covino, Jr., S.D. Cramer, G.R. Holcomb, J.H. Russell, C.B. Cryer and H.M. Laylor
$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