Bridge expansion joint is the space of the beam to be redundant to avoid thermal stress during expansion. Expansion slots usually have two types of expansion joints from 10-15cm wide, expansion joints narrow from 2-5cm. In order for the car to run smoothly and avoid damage, it is necessary to install expansion joints.
Road and bridge expansion joints are made of rubber with natural origin, high bearing capacity, good elasticity, high anti-aging, ensuring smoothness while running.
In Vietnam, usually use two types of expansion joints 50mm and 100mm, this type is usually used for narrow deformation expansion joints, with the advantages:
– High wear resistance,
– Insulation, good insulation,
– Resistance ozone,
– Withstand high temperatures,
– High load capacity,
– Ensure smoothness while driving