Surface Treatment of Concrete

Since 201, Bollerup Jensen has invested extra resources in teh development of products for surface treatment of concrete. Water glass has for a long time been known as a means to improve the properties of concrete, but it is necessary in order to obtain good results to choose the correct method for treatment as well as the correct product. Bollerup Jensen performs different types of tests that are targeted type of concrete and application.

Bollerup Jensen has since its beginning worked with natural and eco-friendly materials and that is applicant for the concrete treatment products as well. Bollerup Jensen has already developed two products within in this project: Concrete Strengthener and Dust Binder. Concrete Strengthener can increase the bond strength of concrete- and mortar floows, and Dust Binder can bind the dust particles normally found in concrete. 

At Bollerup Jensen, we work to develop products that can improve the resistance of concrete towards chemicals, improve the lifetime of concrete, reduce white extracts, and increase the closeness of water in concrete. To develop the products, we have our own analysis lab, where it is possible to test the strength of the concrete, how concrete reacts in a humid environment, and thest the resistance of concrete towards acid and oil.

Security of Sewage Networks in the Future

Bollerup Jensen a formed a project collaboration with Aalborg University, the supply companies Hedensted Spildevand and Vejle Spildevand, the advisory companies DHI and Unisense A/S. The purpose of the project is to secure sewage networks in the future. The sewage networks have to be secured against corrosion and reduce odor nuisances from sewages. The project is supported by VUDP, the Water Sector’s Development and Demonstration Program. 

It is estimated that corrosion and wear of sewage networks yearly cost around 35 billion Danish kr. on a global plan. There is, therefore, a great financially incitement to invest in new solutions that can improve the lifetime of the sewage systems. Sulphur problems are generally bigger at higher temperatures, and all of the project participants eye great opportunities for export for the solutions that are being tested. 

In the project, our eco-friendly and financially friendly corrosion protection of concrete is continously being tested. Besides protecting the concrete against acid, it is expected that the treatment can alter the surface of the concrete and thereby reduce the growth of unwanted bacteria. 

How Are the Products Tested?

In order to investigate the effect of concrete treatments, different methods of testing are apploed. For example, Bond Strength and Acid Test are used. We are working with developing and optimizing test methods that are adapted to product demands. 

Bond Strength

This test measures the strength on the surface of the concrete or mortar. A standard method (DS/EN 1542) is used to measure the strength of the bond on treated and untreated concrete or mortar. It is, for example, important to have a high bond strength before applying epoxy on a concrete floor, otherwise unevenness can occur in the floor below the coating. 

Acid Test

The acid test measures how well the concrete holds when it is exposed to acid. Concrete that can resist acid has many different applications. It can, for example, be used for silage storage, sewage pipes, and manure tanks.

Thomas Dalsgaard
Application technician
For More Information:

If you are interested in our project with surface treatment of concrete, or would like more information, please contact our product developers: