×
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

Tanks and Liners

Tanks and Liners

Tanks and Liners

(OP)
Morning,

I inspected some tanks at a plant that have a fair amount of cracking in them and in some locations are evidence of leaks.  I am looking at using a liner to stop the leaks.  I researched some sprayed on epoxy liners such as the Raven 405 and for some of the tanks this will work fine.  In other tanks, I do not think an epoxy liner will work (talked to Raven about this and they are looking into it) and I think I need something with a better chance of withstanding some movement and the like.  Some of the cracks were epoxy injected in the past and they are leaking again.  Any recommendstions on who to talk to regarding liners?  Or, does anyone have any other suggestions to stop the leaks.  I briefly investigated tearing down some of the walls and replacing but that did not work out.  Any suggestions are welcome.  Also, in case it matters, this is in Georgia.

Thanks,

Mike

RE: Tanks and Liners

You can line the tank with HDPE or similar flexible liner. But if there are a lot of inlets, outlets and miscellaneous openings, it makes lining more difficult. There are any number of lining firms around that can give you advice on materials and methods. Unfortunatly, most of them are local operations, so the good ones in Phoenix, don't work in Georgia.
You're right about a spray on material. The cracks will transmit through the coating and the problem will reoccur. Are the tanks designed correctly?
Usually, concrete tanks have leaks, but they slow down and stop over time. Are the leaks in joints? What's in the tanks? Is it corrosive?
The usual method for stopping leaks in concrete tanks is to inject either epoxy or a swelling material (Sikafix HH) into the cracks. It's tedious and iterative. But it works and for a long time.

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