The rubber strip for bridge expansion joints is related to expansion joints after hearing the name. What is the rubber strip for bridge expansion joints? Let the editor take you to understand it together!
The rubber strip for bridge expansion joints is specially designed for various types of bridge expansion joints. The specifications and models are all produced in accordance with the standards of the Ministry of Communications and the Ministry of Railways. It can be used with C-type, E-type and F-type joints and other types of expansion joints.
Construction technology of rubber strips for bridge expansion joints
1. Cut off the old rubber strip
(1) Investigate the damage of the rubber strip on site and take pictures to record it to determine the scope of cutting. In order to reduce the interface of the rubber strip, the replacement sections should be minimized, and the sections to be cut should be marked with marks.
(2) To clean the surface, first use a wallpaper knife to cut off the rubber strip along the cutting section, then cut the rubber strip into two sections along the expansion and contraction direction and extract the old rubber strip. If it is difficult to extract, continue to cut it until all the residues in the slot are cleaned up.
2. Clean up the debris in the seam
(1) Use a steel drill to smash the internal debris into pieces and then use a clamp to clamp out the pieces;
(2) If the debris that is difficult to clip out can find the exit at the bottom, push the debris to the bottom and take it out from the lower part of the bridge
(3) Use high-pressure air or high-pressure water flow to thoroughly clean up the garbage in the seam, and remove and transport it to the site in time.
3. Install the rubber strip
(1) Evenly apply lubricating oil to the grooves on both sides of the steel beam;
(2) Lay the prepared rubber strip flat on the installation position;
(3) Use special tools to embed both sides of the rubber strip into the groove of the steel beam
4. Connection of old and new rubber strips
(1) The end of the old and new rubber strips are cut with a wall knife to cut the end face of the reverse 45° angle
(2) After cleaning the section to be bonded with gasoline, smooth it with a sander, and apply two layers of adhesive
(3), tightly bond the bonding section
(4) Grind the top surface of the rubber strip with a range of about 20cm at the bonded seam, and apply two layers of nitrobutylene adhesive.
(5) Pre-prepared rubber patch processing, apply two layers of adhesive
(6) Adhere the patch to the seam of the treated rubber strip, tap it lightly with a mallet to make it tight, and open the traffic after 10~15 minutes

The rubber strip for bridge expansion joints uses the high elasticity of rubber to adapt to the expansion and contraction deformation of the bridge deck when the temperature changes. The rubber strip for bridge expansion joints has the advantages of easy installation, stable running, waterproof, dustproof, low noise, light weight and low cost, and has been welcomed and praised by the bridge industry. The rubber strip for bridge expansion joints is resistant to aging and is made of wear-resistant rubber, which can withstand repeated loads of vehicles and has a long service life. It can be used for the replacement of old bridges, and it can also be used when new bridges are built.