Corrosion of Steel in Concrete – A Losing Battle… or is it?

Devan Martel, Outside Sales Representative

Corrosion is one of the leading factors when it comes to the durability of materials and structures. By battling corrosion, we are able to prolong the life of existing structures and minimize corrosion damage in new construction. Many manufacturers have flooded the market with products claiming to be the next best thing since sliced bread, but not every corrosion inhibitor works the same. With so many options to choose from, it can be hard finding the right product for your application. That’s why we’ve gone ahead and found them for you.

Who is Cortec Corporation?
Cortec Corporation is the world leader in innovative corrosion protection solutions. The company has developed solutions to tackle corrosion problems in packaging, construction, oil and gas, and many other industries.  With over 400 products developed and 60 patents since 1977, it’s clear that Cortec Corporation are experts in what they specialize in – corrosion. Cortec MCI Cortec MCI is a division of Cortec Corporation that focuses on the construction industry. Cortec MCI products maintain structural integrity, rehabilitate vulnerable structures, and alleviate environmental concerns. Their product offering includes admixtures, surface treatments, rust converters, and more.

What Are Migrating Corrosion Inhibitors
Migrating corrosion inhibitors penetrate through the concrete to surround the structural steel, thus preventing corrosion. They work to penetrate the substrate in 3 ways;
• Capillary Action
• Vapor Phase
• Ionic Attraction

Once in contact with the embedded metals, a protective molecular layer is formed to stop corrosive elements dead in its tracks. Not only does it work to prevent corrosion, it also reduces existing corrosion rates as well.

Choosing the Right Product for The Job
With such an extensive product offering, choosing the right MCI product for your job may be a daunting task. Luckily for you, our sales team has undergone extensive training to help make your decision easier. Below we’ve taken the time to highlight 3 key products from their offering.

MCI-2005NS
MCI-2005NS is an organic corrosion inhibiting admixture that is added to the mix water of ready-mix concrete at the plant. It is effective at enhancing the durability and extending the service life of concrete structures. It is dosed at 1L/m3 – a huge benefit over other products that may be dosed as high as 30L/m3. While calcium nitrite based inhibitors will accelerate the set of the concrete, MCI-2005NS wont affect it at all. In fact, MCI-2005 may be used when a delayed set is required.
For more information on MCI 2005NS, click here.

MCI-2020
MCI-2020 is surface applied, migrating corrosion inhibitor that is capable of penetrating through concrete, mortar and limestone. It can be used in new or existing structures, such as highways, parking garages, and potable water structures. As a surface treatment, it’s crucial to know that MCI-2020 will not stain or discolor the existing concrete surface. It is easily applied using a brush, roller or sprayer.  For more information on MCI-2020, click here. 

MCI-2018
Much like MCI-2020, MCI-2018 is a surface applied product that migrates into even the densest of concrete. It is a 100% silane concrete sealer that provides water repellency by reacting with the substrate.  Once applied and cured, the treated substrate will become hydrophobic and retain its original appearance. Application is made easy through the use of a sprayer, roller or squeegee. For more information on MCI-2018, click here

Where Can I Buy MCI Products?
Cortec Corporation sells their products through distribution. This means that the general public cannot purchase their products directly from them but must do so through one of their distributing partners. At Form & Build, we pride ourselves on providing our customers with the best products in the market. That’s why we’re excited to hold exclusive rights to Cortec MCI products within Ontario.

Contact your local branch or sales rep today for all inquiries.

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