IndustriesReinforced Concrete IndustryDEYAP

Concrete is one of earth’s most widely used materials and will continue to be so as the population grows.
Aside from its structural capacity, concrete’s durability is a key property that makes it preferred for construction.
However, concrete durability is affected by environmental conditions, including physical and/or chemical attack.
A dominant form of concrete failure seen in most parts of the world is due to steel reinforcement corrosion.
Reinforced Concrete Industry

What Is Cortec® MCI® Technology?DEYAP

Cortec® Corporation’s patented MCI® (Migrating Corrosion Inhibitor™) Technology protects reinforcing metal in
concrete from corrosion. Often, corroding rebar in deteriorating concrete is the cause of costly repairs, financial losses, safety concerns, and negative environmental impact, but Cortec® has the corrosion solution.

MCI® greatly extends the service life of new and existing
structures by proactively delaying the onset of corrosion and keeping rates low after initiation. Cortec® MCI®
products help maintain structural integrity, rehabilitate
vulnerable structures, and promote sustainable construction practices.

Reinforced Concrete IndustryHow Does MCI® Technology Work?DEYAP

MCIs are based on amine technology. They are classified as mixed inhibitors, meaning they affect both anodic and cathodic portions of a corrosion cell. MCI® is applied in many forms including concrete admixtures and topical treatments. It moves as a liquid through the concrete
matrix via capillary action and migrates in a vapor phase throughout the concrete pore structure.

When MCI® comes in contact with embedded metals, it has an ionic attraction to it and forms a protective molecular layer. This film prevents corrosive elements from further reacting with the reinforcement and reduces existing corrosion rates, greatly extending concrete service life.

Enhance the Durability of Your Concrete

Repair with MCI® HPRS® MCI® Technology is centered on the action of Migrating Corrosion Inhibitors. The migration process of MCI®
molecules refers to their ability to diffuse in vapor and/ or liquid form throughout small concrete pores and cavities. MCI® molecules are attracted to both anodic and cathodic areas of embedded metallic reinforcement.

This physical adsorption onto metal surfaces provides a protective molecular layer that significantly reduces corrosion rates even on rusted surfaces, greatly extending the useful service life of the structure
Reinforced Concrete Industry

MCI® Surface Treatments

MCI® offers unique solutions and proven longevity in repair and rehabilitation applications when compared to alternative or conventional systems. MCI® not only slows the rate of corrosion in deteriorating structures, but also discourages the troublesome ring anode/insipient anode effect that often follows concrete repairs.

MCI® solutions include a wide range of surface applied corrosion inhibitors (SACIs)—from pure corrosion inhibitors for maximum protection with the highest corrosion inhibitor concentration on the market, to a variety of water repellents containing MCI® for different project considerations. MCI® is easy to add to concrete repair mixtures and can be used as a topical treatment on existing surfaces.

Several MCI® SACIs have been tested according to the U.S. Bureau of Reclamation M-82 Protocol. The MCI® materials were applied after test slabs reached 10,000 coulombs of corrosion. This criteria is used if the performance of the surface applied repair does not depend upon the amount of chloride present at the reinforcing bars, or if protection at a higher initial chloride content level is to be demonstrated. All materials tested were found to significantly reduce corrosion and cracking at a high level of chloride exposure. The underlying MCI® chemistry of these SACIs is recognized in ICRI Guideline No. 510.2-2019. MCI®-2018 and MCI®-2020 are certified to meet ANSI/NSF Standard 61 for drinking water system components. Both MCI®-2018 and MCI®-2021 have been certified by Applus to obtain CE marks for their specific chemistries.

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Solved Cases from the PastDEYAP

Information page on how corrosion problems have been solved in various countries around the world.
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