Serviflex

Mechanical bridge expansion joints elements with armoured skid resistant aluminium

Advantages

• Applications – movement joints on heavily trafficked bridges or elevated ramps and car parks.
• Movement range – 51 mm to 165 mm.
• Skid resistant – high strength aluminium plate with grooved surface for maximum friction.
• Kerbs and upstands – prefabricated units are manufactured by mitring, welding and vulcanising to ensure complete continuity.
• Armoured – aluminium shielding protects polymer rubber from impact and tire abrasion.
• Drainage channels – rapid discharge of surface water.
• Reliable – moulded from long lasting polymer rubber.
• Resistant to delamination and buckling – T-locked aluminium extrusions  resist cycling forces; steel angles and plates provide structural reinforcement.
• Low stress to sub-structure – 40% greater shear area than conventional designs reduces transmission of stresses to structure.
• Smoother riding – partial confinement of polymer rubber reduces vertical deflection under traffic load.
• Easy installation – surface fixed to concrete deck eliminates complicated box-out and reinforcement.
• Element’s length is 1,83 m – allows only one-direction lane closures and sectional working on repair contracts

In the drawing Serviflex Bolthole sealant Skid resistant aluminium plate Servidem membrane Transition mortar Bedding mortar

Description
Serviflex™ is a range of heavy duty elastomeric bridge expansion joints manufactured from high grade polymer rubber, reinforced with steel angles and plates with hard wearing aluminium plate.

Serviflex™ is resistant in the following conditions:

• heavy traffic and snow ploughs;
• range of movements, imposed by:
  – creep and shrinkage;
  – expansion and contraction caused by temperature cycles; for surfaces
• transmitted braking forces;
• elastic shortage due to pre-stress;
• good skid resisting wearing surface at road level.

The size required should be selected from the chart below for the total aggregated movement expected, taking into account temperature, shrinkage, abutment deflexion, braking forces, etc. Where large scews in excess of 45° occur, Serviflex™ should be recessed a bit back from the kerb and covered with galvanised plates. On pedestrian bridges and podiums a horisontal cover plate may be also used to drainage channels. Servidem™ rubber membrane, fastened below the Serviflex™, acts to provide a secondary waterproofing layer in accordance with British Highway Agency requirements.

Find more about product on the Estonian data sheet  Serviflex.pdf
and from our sales representatives.