×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Galvanized Steel Corrosion in Concrete

Galvanized Steel Corrosion in Concrete

Galvanized Steel Corrosion in Concrete

(OP)
One of our galvanized G90 sheet steel parts has been returned by a customer after the embedded section has rusted almost completely through. Since this is never an issue with our parts, I'm suspecting that their concrete might be the cause for failure. Sulfate attack of the concrete was my first thought, and this would cause cracking in the concrete that would expose the steel to the elements that would faciliate corrosion. I'm trying to conduct testing without visiting their home, as we are not permitted to do so. My question is how could I test if it is indeed sulfate attack or any other mechanism? Sulfate attack only occurs when sulfate was exposed to the concrete during preperation. I'm wondering if I could send the corroded part to have chemical analysis done to confirm if sulfates are present? Also, chlorides present in the initial concrete mix could also speed up corrosoin, and I could test for this as well. Does chemical analysis seem feasible for this investigation given that the part is already corroded?

RE: Galvanized Steel Corrosion in Concrete

What is the full situation? Nowhere near enough detail. Customer abused galvanised steel and 2 years after manufacture it failed- is that your fault.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources