Menu
Search
Filters
Close
Menu

Celebrate World Corrosion Awareness Day with 20% off eCourses and eBooks with code WCAD2024 at checkout!

09209 Review of Galvanized Rebar Performance on G-109 specimens after 9 years

Picture for 09209 Review of Galvanized Rebar Performance on G-109 specimens after 9 years
Available for download
Product Number: 51300-09209-SG
ISBN: 09209 2009 CP
Author: Francisco Presuel-Moreno and Doug Rourke
Publication Date: 2009
Industry: Highways & Bridges
$0.00
$20.00
$20.00
As part of the efforts toward achieving bridges with a service life of 100 plus years, a study was initiated almost nine years ago to assess the use of galvanized rebars. Three different reinforcing steel bars were used in this study: regular carbon steel rebar, galvanized rebar and Zn-4.9Al-0.1 misch metal bath bar “GF” (the last two are Zn coated bars).

The specimens used to rank the rebars were ASTM G-109. Several concrete-mixes-series were prepared. Parameters varied: two water/cement ratios and the effect of two admixtures pozzolanic admixtures. Another variable was the shape of the top rebar. In some specimen sets, the specimen had an initial simulated crack. Selected series with galvanized rebars were prepared with the rebar intentionally damage before exposure. Forensic and metallographic examinations were conducted on selected specimens after being exposed for almost nine years. Results of this examination will be presented. As a general summary, a number of the data sets indicated that galvanized bars out-performed black bars, but in certain conditions the performance difference was marginal. The GF bars have exhibited excellent corrosion resistance in the standard and simulated concrete cracked configurations (the only conditions tested for GF bars).

Keywords: G109, E-SEM, Galvanized Rebar, Chloride Profile
As part of the efforts toward achieving bridges with a service life of 100 plus years, a study was initiated almost nine years ago to assess the use of galvanized rebars. Three different reinforcing steel bars were used in this study: regular carbon steel rebar, galvanized rebar and Zn-4.9Al-0.1 misch metal bath bar “GF” (the last two are Zn coated bars).

The specimens used to rank the rebars were ASTM G-109. Several concrete-mixes-series were prepared. Parameters varied: two water/cement ratios and the effect of two admixtures pozzolanic admixtures. Another variable was the shape of the top rebar. In some specimen sets, the specimen had an initial simulated crack. Selected series with galvanized rebars were prepared with the rebar intentionally damage before exposure. Forensic and metallographic examinations were conducted on selected specimens after being exposed for almost nine years. Results of this examination will be presented. As a general summary, a number of the data sets indicated that galvanized bars out-performed black bars, but in certain conditions the performance difference was marginal. The GF bars have exhibited excellent corrosion resistance in the standard and simulated concrete cracked configurations (the only conditions tested for GF bars).

Keywords: G109, E-SEM, Galvanized Rebar, Chloride Profile
Product tags
Also Purchased
Picture for 90206 Performance of Corrosion Resistant Reinforcements in Concrete Test Specimens and Application o
Available for download

09206 Performance of Corrosion Resistant Reinforcements in Concrete Test Specimens and Application of Results to Service Life Projection

Product Number: 51300-09206-SG
ISBN: 09206 2009 CP
Author: William Hartt, Richard J. Kessler and Rodney G. Powers
Publication Date: 2009
$20.00
Picture for Epoxy coated galvanized rebars as an alternative for rebars used in concrete structures contaminated with chloride ions
Available for download

51318-11598-Epoxy coated galvanized rebars as an alternative for rebars used in concrete structures contaminated with chloride ions

Product Number: 51318-11598-SG
Author: Mayara Stecanella Pacheco / Juliana Lopes Cardoso / Adriana de Araujo / Jose Luis Serra Ribeiro / Zehbour Panossian
Publication Date: 2018
$20.00

Results of laboratory tests of dual-coated (zinc/epoxy) rebars embedded in concrete and in a concrete simulated pore solution with and without chloride contamination followed by a brief description of the adopted methodologies.

 
Picture for 01638 APPLICATIONS OF GALVANIZED REBAR
Available for download

01638 APPLICATIONS OF GALVANIZED REBAR IN REINFORCED CONCRETE STRUCTURES

Product Number: 51300-01638-SG
ISBN: 01638 2001 CP
Author: S.R. Yeomans
$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