High Performance neoprene expansion joint to Korea

I
Q:What's the Rubber Bridge Expansion Joint?
A:Rubber Bridge Expansion Joint is used in Highway bridge decks, Service ramps, Multi-storey car parks and so on. Rubber Bridge Expansion Joint is used to prevent buildings or bridges appear some cracks because of climate change.
 
 
 
 
II
Q: What are the characteristics of the rubber bridge expansion joint?
A:There are the characteristics of the rubber bridge expansion joint:

1. It can freely flex in parallel and vertical direction.

2.It is firm and reliable.

3.It is smooth, no sudden jump and noise when the vehicle passes by.

4.It is waterproof and it can prevent the infiltration of debris into the block.

5.It is convenient for installation, inspection, maintenance, removal of dirt.

 
 
 
 
 
III
Q: What 's the Scope of application of rubber expansion joint?
A: There is the Scope of application of rubber expansion joint:

Expansion volume	30mm-150mm
Adaptive temperature	Ordinary type:+80ºC--25ºC
	Hardy type:+80ºC--45ºC
Scope of application	Old bridge replacement and new small bridge and the opening of the bridge.

 
 
 
 
 
 
 
IV
Q:How to classify the rubber expansion joint?
A:

1. Slab type expansion joint It is made of rubber, vulcanized or steel plate.It is suitable for ordinary highway bridge engineering which the expansion volume is less than 6Omm.

2.Combined expansion joint It is made of rubber plate and steel plate.It is suitable for ordinary highway bridge engineering which the expansion volume is less than 120mm.

3.Modular expansion joint It is composed of the whole shaped steel.And it is composed of the side beam, the middle beam, the beam, the displacement control system, the sealing rubber belt and so on.The advantages of it are good integrity and high bending and compressive strength.There is smooth and no jump and low noise when the vehicle passes by.It applies to all kinds of bend, slope, oblique, wide bridge.Displacement design of modular expansion joint can arbitrary group according to the actual needs.

 
 
 
 
 
 
 
 
 
 
 
V
Q:How to maintain the expansion joint device?
A:Normal maintenance is a necessary and important link to ensure the normal operation of the telescopic device and prolong the life.Therefore, the maintenance work should do as follows.

1.Keep clean sealing rubber belt in the accumulation of sand, stone chips and other debris to prevent the free expansion of the influence of the force of the telescopic device and to prevent rocks and other objects to puncture sealing rubber belt.If it is found to be damaged,you should replace adhesive tape in time.

2.Check the connection between the side beam and the bridge deck pavement, whether there is damage, cracks, leakage phenomenon.If it is found to be damaged, you should make it be repaired in time, so as to avoid the influence of the expansion device and the beam, plate anchorage strength.

3.Usually check whether the top surface of the telescopic device is smooth or not.If there is abnormal phenomenon,you should further check whether the sliding bearing or sliding bearing is damaged.If it is damaged,you should make it be replaced in a timely manner.

4.In daily maintenance,If it is found that there is too much uneven displacement between the joints of the expansion device,timely check the displacement control system components are damaged or not.If it is found that there are parts damaged,you should make it be replaced in a timely manner.The device adopts standard component,so it's easy to replace.

5.Due to the bad environment of the modular expansion device,after a certain period of using,it will produce general corrosion which belongs to normal phenomenon.At this time the conservation department should be regularly re - processing of rust,in order to ensure the normal use of the telescopic device and better durability.