Bridges are often constructed in existing locations and over existing waters or roads. Consequently the space available for the actual bridge construction is limited by local situations. To make sure the bridge is strong and stable enough, many bridges use high density concrete or loose ballast to provide enough weight or balance for the bridge.
Heavy concrete for balanced bridges
Whether it is a self-anchored suspension bridge, a cable-stayed bridge, a road connection or a railway bridge these highly engineered constructions require concrete with a high density aggregate to provide enough weight to keep the correct balance.
When MagnaDense, a natural mineral, is added to a concrete mix a density of up to 4.0 t/m3 can be achieved; an increase of up to 60% in comparison with normal concrete. The increased density means that less material is required for the precast items which can provide environmental benefits with less transportation or build space required.
Structurally precast concrete bridge anchors must be sound and extremely reliable throughout their lifetime. MagnaDense can ensure this due to its resilience to weathering and abrasives above and below water. The heavy concrete can also be pumped or pre-cast into various shapes and provides a stable secure bridge anchor.