×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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!

*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

steel reinforcing corrosion in concrete
2

steel reinforcing corrosion in concrete

steel reinforcing corrosion in concrete

(OP)
Dear everbody,

We are now fighting in a concrete corrosion problem in Turkey.
 
A rough description : One of the main inputs in the production is the NaCl. The factory was maintained on the concrete structure & mostly it is in contact with the media includes chloride ions or the it's vapour. These ions are diffusing into the concrete and reach to the steel rod reinforcements. Since the ratio of the chloride ions in the concrete is very high, they remove the passive film on the steel rods which means the lost of strength of the concrete composite structure.

What we thought to reduce the chloride ions effect : applying the Chloride Extraction method!

My first question : we can not able to apply the method to the all concrete structure in the plant. Since the steel reinforcings touch eachother in the concrete, they are now in electrical contact. In this position, do we apply the method only a specific part of the whole plant concrete structure.

Secondly; does any one have any bright idea or experience on our problem?

Thank you all in advance!

 

RE: steel reinforcing corrosion in concrete

2
I would work on several areas of the plant at a time, trying to gauge the effectiveness of the extraction method.  Assuming the rate of extraction is high, I would quickly move on to treating other areas.  Keep in mind that the areas being treated might need to be isolated from operations while the treatment is ongoing.

You might also look at a secondary treatment method (penetrating inhibitors) for areas not reachable by the extraction blankets.

Be sure to take samples before, during, and after for chlorides.

RE: steel reinforcing corrosion in concrete

Kilavuz,

Is corrosion of rebars a big problem in Turkey. If it is then you should look at combating corrosion at the construction stage (epoxy coated bar, cement quality etc).

Regards




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! Already a Member? Login



News


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close