‘There’s cracks in that structure!’

Oh no! Does this mean that it is at the end of its service life?

‘There’s cracks in that structure!’

Definitely not! As long as there is uncured calcium (free lime) in the concrete there’s scope for service life to be extended.
Your concrete is old? Don’t knock it down, just add life to it! There may be many more years left in that concrete than you think.

Why is aged concrete a problem?

Concrete corrosion is slow, and we all know that when the corrosion of steel reinforcing opens up cracks from within, it allows more moisture in, opening the cracks up faster, and round and round it goes.
You generally don’t notice it for a few years though, hence why asset owners can get a nasty surprise and assume that something has just recently happened to the structure, when it has actually been deteriorating from Day 1.

Yes, you can add life to concrete from Day 1.

We strongly encourage, and believe, that you should take the right steps from when you plan your pour, and spend on proactive protection to avoid having to pay up to 125 times more for remediation/replacement (De Sitter’s law of fives).
More about that here.
(A great podcast, by the way!)

But wait, there’s more…

How come the Romans’ concrete has lasted so long?
Here is a great read.
When AQURON hydrogel treatment was discovered, and consequently developed, we have taken advantage of a principle that the Romans used, stimulating (denser) concrete, by the introduction of tiny particles of silica.

So back to the remediation…

‘Then,’ you think, ‘why don’t we just fill the cracks?’
Ah ha! That’s just the thing! You can actually help micro-cracks to fill themselves!
Most crack-sealants are not made of exactly the same material as the concrete; they may be cementitious, but include other elements.
Hydrogel technology, on the other hand, enhances concrete’s inherent self-healing capabilities. It induces formation of further CSH within the concrete without the introduction of foreign compounds.
This treatment needs uncured calcium (free limes) to react, and the treatment, containing catalytic colloidal silica, reacts in the concrete with the available moisture, to turn it into gel. This gel is, effectively, now part of the concrete. Why?
Concrete is bound together by CSH that forms between the cement particles: Calcium-silica-hydrates. The hydrogel, called AQURON, reacts to duplicate CSH within the micro-cracks.
We have just added durability to the structure without damaging it.

That’s why we call it ‘Adding Life to Concrete!’

With remediation works, normally it is because the reinforcing steel within the concrete has started to corrode that cracks appear. The Aquron is literally drawn in by the concrete, and fills the cracks that have enlarged from within. The hydrogel immobilises available moisture, thus taking away the power of the moisture to react with the reinforcing steel. Corrosion is halted.
Facing challenges with your concrete structure? Contact our friendly team today!

Photo by Simon Shim on Unsplash


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We understand that choosing the correct solution and type of product is essential for the success of any project. Markham has a technical support team with many years of concrete industry experience and successful project applications and we are ready to help you find the right solution for your application.

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