The drivability surface is made of steel materials of round shape, so it has less noise and very high durability against wheel shock and abradability

With simple structure, its installation is very easy, and with the cut manufacture and installation, speedy installation and economical maintenance are possible.

- It uses synthetic rubber with excellent anti-ozone/freezing features and durability. Since it is manufactured with pressure over 14000kN for an exclusive mold, it is very reliable in terms of waterproofing.

- Specially manufactured double pocket waterproofing couplings are inserted between the products manufactured separately to completely prevent water leakage. Using the connection reinforcement materials, optimal waterproofing is achieved.

- At both tips of the expansion joints, water drainage devices are located. Excellent waterproofing is established.

- Some portions of the vibration or impact generated as a vehicle passes over the expansion joints are absorbed by the waterproofing coupling between the products. So, the impacts are not delivered to the entire cross-section of a bridge.

- As water expansion-resistance material is attached, you can completely seal the space between the fixed concrete and the expansion joint device.

- Round shape top intends the best drivability and the end of top has rubber to absorb the shock.

- Bolt type pre-setting device is applied for easy pre-setting even at the field, and the flatness can be also improved.