Title:
IMPACT ON ANTICIPATED SERVICE LIFE OF CHLORIDE THRESHOLDS
Author(s):
Kyle Stanish
Publication:
Symposium Paper
Volume:
308
Issue:
Appears on pages(s):
1-8
Keywords:
Concrete; Corrosion; Service Life Modelling; Corrosion-Initiation Thresholds; Supplementary Cementitious Materials
DOI:
10.14359/51689181
Date:
6/1/2016
Abstract:
The corrosion-initiation threshold for corrosion is a key parameter that controls the expected service life of a concrete structure. Different methods of establishing threshold values that consider different components of concrete mixtures can have a significant impact on anticipated service life. This impact is evaluated using typical concrete mixtures that are used in structures exposed to chloride-laden environments across the United States. The often synergistic impact of including supplementary cementing materials (SCMs) in a concrete mixture and corrosion-initiation thresholds is examined, where the reduction of diffusion values with time can lead to a greater impact that would be expected from variation in corrosion-initiation thresholds alone.