USL offers two asphaltic plug joint systems which are registered with the UK Highways Agency, Scottish and Welsh Assembly’s for use on all classes of highway bridges:
FEBA JOINT – is a standard asphaltic plug joint which provides a flexible, waterproof joint with excellent ride quality for road users and noiseless characteristics for minimal impact on the environment. Asphaltic plug joints are recognised as being suitable for a maximum design movement of +/-20mm horizontally and +/-1.5mm vertically (Highways Agency Standard BD33/94) and are ideal for use on bridges with low traffic volumes such as B roads.
FEBA HM - is a high modulus asphaltic plug joint suitable for low to medium movement on heavily trafficked highway bridges. FEBA HM is a special blend of bitumen, polymers, fillers and a surface active agent, formulated to combine good fluidity at process temperatures with low temperature flexibility and ambient temperature slump control. The use of basalt aggregates (BS EN 13043) ensures excellent load bearing capacity and high resistance to wheel tracking. This amalgamation of a highly flexible binder and single sized interlocking aggregate allows the system to provide excellent anti rutting characteristics.