×
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

Shotcrete concrete slab repair from below.

Shotcrete concrete slab repair from below.

Shotcrete concrete slab repair from below.

(OP)
Anyone have any experience with Shotcrete concrete slab repair from below? Our concrete is cinder concrete with corroded or totally failed reinforcement in it.  The bay size is approximately 6 feet by 20 feet.  There is at least one diagonal brace in each bay.

If the wire is corroded or totally gone, and there is no re-bar in the slab, how would you add structural integrity from below prior to installing Shotcrete?  

How do you get the Shotcrete to bond to the old concrete (is it even necessary if you add rebar and/or wire mesh from below first?), do you use a bonding agent?

How much should it cost approximately for Shotcrete (I am in NYC but give me the price where you are and I can factor it up)?

How much to chip off the old spalled concrete, wire brush the steel beams and generally prepare the slab from below?

How much to add reinforcement from below?

Thanks!

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