Title:
Accelerating Standard Test Method for Assessing Corrosion of Steel in Concrete
Author(s):
Ceki Halmen and David Trejo
Publication:
Materials Journal
Volume:
109
Issue:
4
Appears on pages(s):
421-430
Keywords:
accelerated test; corrosion testing; deterioration.
DOI:
10.14359/51683917
Date:
7/1/2012
Abstract:
The time required to quantitatively assess the corrosion performance of steel embedded in concrete can limit the introduction of new materials and systems into the market to extend the life of reinforced concrete structures exposed to corrosive environments. New test methods that can quickly provide quantitative results for assessing corrosion resistance are needed. This paper presents results from a research program that assessed the influence of exposure environment on the time to corrosion of steel embedded in concrete following the ASTM G109 test procedures. Results indicate that the modified test can provide quantitative results for reinforced concrete specimens containing different materials and that increasing the temperature and humidity reduces the time to initiation of corrosion. However, the reduction in time is not significant for specimens containing materials that resist corrosion, and increasing the temperature and humidity is not sufficient to generate results over reasonable durations.