Title:
Corrosion of Steel Reinforcement in Pervious Concrete with Conventional Concrete Cover
Author(s):
Goran Adil, Ceki Halmen, George Seegebrecht, and John T. Kevern
Publication:
Materials Journal
Volume:
118
Issue:
2
Appears on pages(s):
211-221
Keywords:
chloride content; concrete cracking; corrosion; durability; pervious concrete
DOI:
10.14359/51730514
Date:
3/1/2021
Abstract:
Corrosion performance of reinforced pervious concrete was evaluated through field and laboratory evaluations. Two reinforced pervious cemetery walls in Chicago, IL, were visually evaluated, and samples were investigated through petrographic examination. Corrosion performance of two-layered concrete samples, with an outer layer of conventional concrete and an inner layer of pervious concrete, was evaluated in the laboratory. Results indicated that pervious concrete around the reinforcement can significantly delay the cracking and spalling of samples compared to conventional concrete. Chloride profiles of samples and instantaneous corrosion rate measurements showed that corrosion of reinforcement embedded in two-layered samples was similar to conventional concrete although two-layered samples provided a longer time to cracking. Laboratory results are in agreement with long service life performance observed in the field and with prior pervious concrete corrosion studies.
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