High density concrete with MagnaDense
LKAB Minerals has supplied high density MagnaDense for different bridge constructions around Europe. Each of these projects unique in their design and the circumstances for placement but all in need of extra weight.
Heavy concrete for balanced bridges
The cable-stayed Samuel Beckett bridge in Dublin has a special design with heavy concrete in both pivot and bridge deck to maintain the right balance. For boats to pass, the bridge swivels open balancing on a pivot which is not situated in the middle. Therefore, the bridge needs extra weight on the short end of the construction to keep the balance perfect. In this case, the best solution for extra weight in the complete design was MagnaDense heavy concrete, as it gives more weight and requires less volume than ordinary concrete.
Benefits for using MagnaDense in bridges
Every bridge design will require different materials and techniques. However, when a design asks for a lot of weight but has limited dimension to fulfill this with ordinary materials, MagnaDense might offer the solution because it:
- Provides more weight with less volume
- Is available world-wide
- Can be used to make a concrete counterweight
- Does not react with water