Corrosion-Inhibiting Admixtures for Concrete

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2 PDH Credits

This module, based on Chapter 13 from ACI 212.3R-16, “Report on Chemical Admixtures for Concrete,” addresses the use of corrosion-inhibiting admixtures to help mitigate steel corrosion in concrete. This chapter provides information about how the three common types of corrosion-inhibiting admixtures – amine carboxylate, amine-ester organic emulsion, and calcium nitrite – work to slow the rate of corrosion of embedded steel.

Table of Contents:

Explain the advantages of using corrosion-inhibiting admixtures in reinforced concrete exposed to corrosive chloride environments.
Describe how the three common corrosion-inhibiting admixtures work to reduce the rate of corrosion.
List some applications where each of the three corrosion-inhibiting admixtures would be better suited in different chloride exposure applications.
Explain some other effects that each of these three corrosion-inhibiting admixtures have on freshly placed concrete and hardened concrete properties.

Jenny Apekian, DDS

An established expert in concrete construction and technology, based in Sacramento, California, and actively involved with the American Concrete Institute (ACI). She is a strong advocate for utilizing the latest advancements in concrete technologies to enhance construction practices, including innovative mix designs, 3D printing in concrete, advanced curing techniques, and state-of-the-art quality control systems. Committed to staying at the forefront of the concrete industry, she participates in ongoing professional development and is deeply involved in ACI's educational programs. As a key opinion leader for various concrete technologies, she mentors and trains professionals across Northern California on utilizing advanced tools for concrete design, production, and inspection. She teaches fellow engineers and technicians how to apply these technologies in creating durable structures, optimizing workflows, and improving overall project efficiency. She also speaks nationwide on maximizing productivity through efficient design and organizational best practices in the concrete industry. Recently, she was honored with the ACI Excellence in Concrete Construction Award, recognizing her contributions to advancing modern concrete solutions.