ABSTRACT

Corrosion of embedded rebar in concrete can lead to ultimate deterioration of a concrete structure. Corrosive electrolytes and species can penetrate concrete due to its porous nature. An admixture was developed employing synergistic blend of migrating corrosion inhibitors and water-proofing ingredients. The admixture enhances the protection by forming a protective film on rebar. In addition, it reduces ingression of water soluble corrosive species. Electrochemical tests show that this admixture provides superior corrosion protection to the rebar. Additional test results demonstrate that the admixture reduces water permeability while does not negatively affect workability, set time, and mechanical properties of concrete.

Keywords:
Pipeline Corrosion, oilfield chemistry, Corrosion Inhibition, materials and corrosion, water management, well integrity, rebar, Subsurface Corrosion, texas 77084, Corrosion Management
Subjects:
Production Chemistry, Metallurgy and Biology, Pipelines, Flowlines and Risers, Materials and corrosion, Well Integrity, Subsurface corrosion (tubing, casing, completion equipment, conductor), Corrosion inhibition and management (including H2S and CO2)
This content is only available via PDF.
2014. NACE International
You can access this article if you purchase or spend a download.