Expansion joints failure is caused by corrosion erosion cyclic fatigue or thermal creep at elevated temperatures.
Rubber expansion joint failure.
Bellows pipe expansion joints which have been properly designed and manufactured for specified piping system conditions have given many years of satisfactory service.
During routine inspections signs of fatigue and or premature failure can be easily detected in rubber expansion joints long before the actual failure occurs.
Unlike metal expansion joints the majority of failures related to rubber expansion joints are not catastrophic in nature.
We have divided the list of some of the most common causes of expansion joint failure into three groups based upon the actions that can be attributed to them.
1 prior to start up.
Improper handling during transport storage or assembly.
Failures of course have occurred which are of concern both to users and to reputable pipe expansion joint manufacturers.
Added on wed jun 29 2011.
They are commonly found between sections of buildings bridges sidewalks railway tracks piping systems ships and other structures.
Main causes of failure for expansion joints.
Rubber bellows can crack if they are over pressurized or placed in a harsh environment.
It will also discuss failure analysis of rubber expansion joints and some of the leading causes of joint failure.
Common signs of rubber expansion joint fatigue.
Typical causes of pipe expansion joint failure.
Neoprene rubber expansion joint read more.