Minelco has concluded a number of agreements for the delivery of Minelco MagnaDense to be used for the production of magnetite concrete walls in radiation oncology departments in hospitals.
Our customer Velde Betong won the order to deliver concrete to the expansion project of Stavanger University Hospital radiation oncology unit.
This Norwegian private owned company operates a quarry of granite reserves on the south west coast of Norway. Beyond aggregate production, Velde also operates as a road building contractor and a ready mixed concrete supplier.
More weight less volume
Our MagnaDense plays an important role in the hospital’s oncology department. When used as a concrete aggregate, densities of up to 60% more than traditional concrete can be achieved. This saves a lot of space and significantly reduces the wall thickness. In addition, treatment rooms with thinner walls increase comfort for the cancer patients. Moreover, MagnaDense will shield both patient and personnel from radiation.
New project, trusted solution
Sven-Henrik Norman, Product Manager at Velde Betong AS, comments: ”This has been a new and interesting project for us. Since we did not have any previous experience with this type of concrete, we had to try out the recipe in our laboratory first and make some minor adjustments on cement and plasticizer dosage.
Before starting the production, we had a very close dialogue with Minelco, the hospital project management, the consultants and the contractor. Minelco gave advice and put us in touch with people who had worked with this type of concrete before. It was of course critical that the concrete should reach the required density and strength. Therefore we focused on all aspects of the process, from mixing plant to pumping. The high density will of course result in less loaded volume in each truck and careful planning of the pumping.”
Good radiation shielding project preparations
We were all well prepared in this radiation shielding project and it paid off. The concrete with MagnaDense aggregate was predictable and stable and the job was finished according to plan. We reached both the required strength and density. The technical and logistical support from LKAB Minerals throughout the whole process has been excellent. This gave us reassurance all the way through working with a new type of concrete with these special properties. If we would get more enquiries for high density concrete, I would use MagnaDense aggregate again.”