Value Engineering for Concrete Maintenance and Repair

The concept of value engineering is not only for the construction phase. It is also a useful practice during the maintenance and repair stages of existing reinforced concrete structures, ensuring projects get done within budget. True value engineering saves money without reducing service life or affecting the quality of construction or materials. Ideally, it adds value to the project. MCI-2019 is one such value engineering solution to take advantage of when seeking to extend the service life of existing concrete structures. 


The Benefit of MCI Water Repellents 

MCI-2019 is a 40% silane, solvent-based concrete water repellent containing Migrating Corrosion Inhibitors. The small molecules of MCI-2019 can easily penetrate into concrete, providing water repellency by chemically reacting with cementitious substrates under proper application. MCI-2019 seals surface pores, which prevents intrusion of chloride and carbonation and protects from the ingress of wind-driven rain.

Treated areas retain their original appearance and are breathable. MCI-2019 is an excellent option both as the finishing touch on a concrete repair (where no membrane or coating system is used) and for periodic maintenance every 7-10 years. Since MCI-2019 increases service life, it can ultimately reduce the use of repair or reconstruction materials, thus contributing to sustainability. 


Coping with Silane Shortages 

One of the big challenges for the construction industry and many others today is the issue of raw material shortages (consequently driving the cost of materials up). For instance, silane supplies are often delayed or difficult to find. Using only a 40% silane relaxes the demand and helps the supply go farther while still providing a significant degree of water repellency. Since MCI-2019 contains Migrating Corrosion Inhibitors that provide active corrosion protection at the rebar, the need for 100% silane is also not as strong because a dual mechanism is at work to keep corrosives out and resist those that do find their way in.


Cutting Costs 

In addition to working around supply chain shortages, MCI-2019 is also a great way to help cut costs when working on a limited budget. This is especially true with the current combination of supply chain shortages and inflation driving up the price of silane even farther. Using MCI-2019 saves costs compared to similar alternative systems. It can help a project stay within budget while still offering an excellent source of corrosion protection. 


Saving Labor Time and Intensity 

Another way MCI-2019 can save costs is simply by requiring less labor than other water repellents and surface applied corrosion inhibitors (SACIs). Silane wears out and erodes over time, so a good maintenance practice is to reapply it at 7–10-year intervals to maintain concrete water resistance and simultaneously add another dose of SACIs. Usually, workers water-blast the surface to make sure the silane residual is completely cleaned off and then apply a new SACI and a 100% silane water repellent. However, with MCI®-2019, this may be unnecessary. Workers can save time by applying one or two coats of a two-in-one product and leaving the old silane in place. The silane in MCI-2019 supplements any residual silane, while Migrating Corrosion Inhibitors are still able to penetrate into the concrete. A further advantage is that MCI-2019 does not etch, stain, discolor, or otherwise harm glass or aluminum. 


Repair of University Towers

In 2015, three 1970’s cast-in-place concrete residence towers at a Midwestern university required repair due to rusted rebar in concrete. After using MCI-2019 instead of a standard 40% solids silane water repellent post-repair, the project’s specifying engineer commented, “MCI-2019 provided a cost-effective solution in applying both a migrating corrosion inhibitor and a silane sealer in a single product in one application with no resulting color change to concrete façade[s].” The non-etching feature was crucial to the protection of the structure’s new windows, and the parties involved were happy with the ease of MCI-2019 application. 


Be Ready with Multiple Value Engineering Solutions

In today’s market, it is important to have many different value engineering options at one’s fingertips. MCI-2019 is one that can help engineers and contractors cope with silane shortages and stay within budget all while fortifying concrete with corrosion inhibitors to extend service life.



Cortec Europe

Ivana Lucica 5

10000 Zagreb/Croatia

+395 98 277 312


Related articles:

Product launch: 100% Silane Penetrating Water Repellent for Concrete Surfaces

Water repellents play an important role in concrete maintenance and corrosion protection by blocking out certain corrosives and keeping in Migrating Corrosion Inhibitors. Because water repellents are...

Issue 03/2024 CORTEC EUROPE

Fighting corrosion in concrete potable water structures using MCIs

What can be done when corrosion protection is needed in a reinforced concrete structure that holds drinking water or is located in an environmentally sensitive waterway? Due to the possibility of...

Issue 06/2023 CORTEC EUROPE

How to make concrete structures more sustainable with MCI-2005

Sustainability: This concept of environmental responsibility and renewability is at the forefront of many minds today. When it comes to construction, multiple pieces play into this puzzle, especially...


Dual SACI and Concrete Sealer Systems: Products from Cortec

When performing a concrete repair or routine sealer application, is there any benefit to adding a surface applied corrosion inhibitor (SACI) underneath? Will the combination enhance protection or...

Issue 08/2021 CORTEC

Easy Corrosion Solution for Post-Tension Grouting

Cortec’s patented MCI Technology designed to protect reinforcing metal in concrete from corrosion is widely used around the globe. Application of MCI products experienced rapid growth in recent years...