QUALITY CONTROL (II)

 


Following tests have been carrying out in our workshop as per standard codes and practices.

Radiography

Hydrostatic Test

Dye Penetration Test

Visual inspection using calibrated tools and tackles

Positive material identification tests (Chemical analysis)

Tensile Test

Training Session for NDT Testing Processes

Flattening Test

Bending Test

Weld-strength Test





Dye Penetration Testing


Dye penetration testing has been around for a long time. The premise behind the test uses 2 different spray-on materials that, when applied properly, make a crack in the steel visible. And it’s a pretty simple test to run once you know how.


We always try to keep a dye pen kit with us in our field offices when we are involved with bridge rehabilitation projects since, often-times, after deck removal, we find girder top flange conditions that need to be checked for cracks. I’ve successfully used the well-known & readily-available SpotCheck kit – We purchased a new kit specifically for this effort.


The process takes a few steps:


First, we cleaned the deformed areas with the cleaner to get rid of the dirt & weather-born debris on the steel. Dave & I were up in a manlift with nothing more than Windex and paper towels.










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