×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

*
*
*
*

Thanks. We have received your request and will respond promptly.

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

mudjacking/slabjacking

thread488-230382

mudjacking/slabjacking

mudjacking/slabjacking

(OP)
Has anyone ever come across any regulations or performance specifications for mudjacking/slabjacking? My company was contacted by a business owner who has a number of sunken (1" to 4") sidewalk panels & is concerned about lawsuits from tripping pedestrians. After determining that the cause was poor compaction & not cavitation or water ponding, we were prepared to recommend slabjacking. We have no firsthand experience with this procedure & can't find any mention of regulatory agencies or construction standards in any on-line information for this remediation. Any direction would be appreciated. Thanks.

RE: mudjacking/slabjacking

just google mudjacking and you'll find some information. Here's a spec I found.

I had a project about 20 years ago where we jacked some slab panels in a toll plaza. I was the resident engineer. The panels had settled up to 2". We couldn't completely raise the raise the panels; just didn't work the way the designer specified things; but we were able to seal all of the voids.  

RE: mudjacking/slabjacking

If it is only sidewalk panels - it might be just as cheap to replace them??

Mudjacking might not get them perfectly level or aligned....

Mudjacking does however have its place and works quite well with certain applications.

RE: mudjacking/slabjacking

MiketheEngineer has the correct slant, with pressure grout or mudjacking cost 8 to 10 times the sidewalk installation cost.  (Even with demolition cost excluded, the replacement is superior to mud jacking).

RE: mudjacking/slabjacking

I don't know about the mudjacking being more expensive than replacing the sidewalks, but the advantage of replacing them is that you can get at the subgrade problem to fix it.  The grouting will only fill the existing voids, as you don't have much to jack against.  The problem could well reoccur.

RE: mudjacking/slabjacking

I saw one bad result of aq slabjack solution to a settled garage slab.  The slab jacking contractor didn't consider the increased fluid pressure against the 8 foot high concrete retaining wall supporting the edge of the settled slab.  It cracked the retaining wall, necessitating further repairs.

Mike McCann
MMC Engineering

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

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. 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