×
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

Grout Filling Abandoned 4" dia Waterline

Grout Filling Abandoned 4" dia Waterline

Grout Filling Abandoned 4" dia Waterline

(OP)
I am abandoning about a half mile of existing 4" diameter steel waterline, and the pipe needs to be filled with some sort of non-shrink grout or similar. Since the pipe is only 4" in diameter, I have a few questions:

• What type of material should be specified for the flowable fill, i.e. cellular concrete, polymer-modified grout,...?? Or will a standard cement slurry mixture work that is typically used for larger pipe abandoning?
• How many feet of pipe can be filled at a time with a single point of entry and vent at the other end? Should it be limited to say 500 ft at a time, less, more,...?
• What is the approximately cost of this?
• Line has shallow cover with significant surface loading. Is this a concern for certain products used to fill the pipe?

Thank you and I look forward to hearing back as soon as possible.

RE: Grout Filling Abandoned 4" dia Waterline

4 inch? Just fill it with water and abandon

Or bentonite

If someone really really want to spend money for no benefit then foamed concrete is pretty good.

at 4 inch you're probably pressure limited but how far? - need to ask some vendors. My guess would be 400m

If it's that shallow can't you dig it / rip it out of the ground?

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

RE: Grout Filling Abandoned 4" dia Waterline

I concur with LittleInch, filling a pipe with traditional grout - is a bad idea. I am guessing that the DOT is wanting it filled, as they tend to make obscure requirements such as this. Point them to a story in Atlanta a few years ago where the road buckled because they required a pipe to be filled with grout. If they do make you do this, you will need a very flowable slurry type mix though.

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


Resources

White Paper - Smart Manufacturing for Semiconductor
New technologies and approaches present great opportunities for semiconductor manufacturers to achieve high levels of innovation, yield and improvement. This white paper explores some of these cutting-edge technologies and how they can be applied effectively in the semiconductor industry. Read about how Smart Manufacturing is transforming the semiconductor industry. Download Now
White Paper - Analysis and Simulation in Aircraft Structure Certification
Organizations using simulation and analysis tools effectively see the benefits in their ability to achieve certification faster and with drastically less total cost than those who do not maximize these tools. Read this White Paper to learn about how digital tools such as analysis and simulation help in aircraft structure certification. Download Now

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