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51315-5706-Correlation Width Cracks—Corrosion Rate in the Durability of Reinforced Concrete in Tropical Marine Environments

Picture for Correlation Width Cracks—Corrosion Rate in the Durability of Reinforced Concrete in Tropical Marine
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Product Number: 51315-5706-SG
ISBN: 5706 2015 CP
Author: Oladis Trocónis de Rincón
Publication Date: 2015
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This study aims to evaluate the correlation between width cracks - corrosion rate in reinforced concrete specimens exposed to a tropical marine environment of very high aggressiveness. For this specimens from DURACON project with w/c ratio of 0.65 and 0.45 were used; six of them have 6 steel bars placed at three different depths (15 20 and 30 mm) for electrochemical tests and 6 specimens without reinforcement for destructive testing. These specimens were exposed for more than 10 years at the station La Voz Venezuela; monthly the meteorochemical parameters (relative humidity temperature precipitation wind speed and Cl-) and electrochemical parameters (potential and corrosion rate) were evaluated. This paper presents the results obtained for the specimens with a/c = 0.65 which are the only that have cracked demonstrating excellent linear correlation between crack width and corrosion rate depending on the coating thickness on rebar.
This study aims to evaluate the correlation between width cracks - corrosion rate in reinforced concrete specimens exposed to a tropical marine environment of very high aggressiveness. For this specimens from DURACON project with w/c ratio of 0.65 and 0.45 were used; six of them have 6 steel bars placed at three different depths (15 20 and 30 mm) for electrochemical tests and 6 specimens without reinforcement for destructive testing. These specimens were exposed for more than 10 years at the station La Voz Venezuela; monthly the meteorochemical parameters (relative humidity temperature precipitation wind speed and Cl-) and electrochemical parameters (potential and corrosion rate) were evaluated. This paper presents the results obtained for the specimens with a/c = 0.65 which are the only that have cracked demonstrating excellent linear correlation between crack width and corrosion rate depending on the coating thickness on rebar.
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