The shallow profile of the edge beam facilitates installation of these joints in thinner deck sections without any wearing coat. Lightweight anchorage and edge beam sections gives economy yet being robust, water tight and virtually maintenance free.
MAURER Betoflex® is a environmentally friendly polymer concrete used to ceate an inflexible and watertight anchor for the edge profiles of traffic-exposed MAURER Single-Seal Expansion Joints in bridge constructions and superstructures. MAURER Betoflex®-Expansion Joints have a low structural height and are therefore particularly suited for maintenance measures or if little space is available. MAURER Betoflex® can be retrofitted to make the connections to the road surface more even and, therefore to contribute to more effective noise reduction.
Various products cater for various needs, from the low cost elastoblock expansion joint to our flagship, the DB mat series. Whereas the former 2 varieties are designed for ballasted tracks, MAURER also offers a conventional type of expansion joint for ballastless tracks.
All types ensure absolute watertightness.
MAURER DB Expansion Joints (DB = Deutsche Bahn AG/German Railroad Company) for expansion ranges of 40, 80 and 130 millimeters are used in railroad bridges. A special pad profile ensures watertight absorption of motions, traffic load distribution as well as gap-free support of the crushed stone bed. Anchoring and watertight connection to the steel edge construction is provided by aluminum clamping strips and prestressed bolts. MAURER DB Expansion Joints are authorized by Deutsche Bahn AG. Larger expansion ranges can be achieved by series connection of MAURER DB Expansion Joints.
This particular joint is uniquely capable of handling both the structural movement to the tune of 1500-2000 mm yet offering freedom of the movement in rails supported on it. Thus provides a single solution for both structural and rail movement requirements saving significantly on cost.