Leading Concrete Protection Systems …

Find out how Densi Crete purged contaminants from this 30 year old workshop floor

Contaminated Concrete

Dealing with contaminated concrete floors can be a challenge for any contractor, and recently we heard of another success story involving Densi Crete and a workshop floor that was in dire need of some help.

The floor in question

The worksite was a 30-year old engineering workshop floor that had oil and various other contaminates dropped on the concrete over the years.

Oil is a weak acid, and this constant exposure resulted in it corroding the concrete’s capillaries, weakening its structure and making it more susceptible to further contamination, which would continue to penetrate deeper into the concrete.

This meant that the problem had become pervasive, and that Densi Crete was the best solution.

Why Densi Crete was chosen

Densi Crete is a 100% colloidal silica that not only is able to improve concrete of any age, but it is also capable of decontaminating old concrete slabs.

This is because Densi Crete forms a permanent gel deep inside the concrete that forces or purges substances out of the concrete, which include harmful chlorides, oils, acids, animal fluids, chemicals, microbes, mould, and gases.

After the Densi Crete is successfully applied, the contaminants will either be purged, or contained passively in the permanent gel, which allows for any coating or covering to be applied to the concrete without having to worry about the substrate being compromised.

In fact, Densi Crete is the only system that will permanently eliminate deep-seated contamination and halt the effects of moisture, thereby ensuring that floor coverings or coatings won’t delaminate from the concrete substrate.

The Treatment

First, the floor was diamond ground to remove the layers of grease and oil and then Densi Crete was applied, purging the contaminants. The concrete actually gave off a foul smell as the Densi Crete purged the floor of deep seated gases and oil. Further diamond grinding was required, and more Densi Crete was applied until all the materials were purged or encapsulated in its gel.

Afterwards, the concrete was cleaned, and the substrate was ready to receive subsequent coatings to protect it from future moisture and other contamination ingress.

The benefits of using Densi Crete:

  • Densi Crete can be applied to almost any concrete product containing 10% Portland cement.
  • It is easy to apply and can be sprayed on to existing concrete or concrete at time of pour.
  • After applying Densi Crete the surface is foot trafficable after just 1 hour.
  • Install floor coverings within 24 hours of application to exisitng concrete or within 14 days of application if used at time of pour.
  • Densi Crete is more than 21% cheaper than other waterproofing membrane methods.

For more information about DuraCore’s range of excellent products, please feel free to call 1300 044 625 or visit www.duracore.com.au. Alternatively, to find your nearest distributor please click here.

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