×
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

control joints in concrete slabs at poolside patio

control joints in concrete slabs at poolside patio

control joints in concrete slabs at poolside patio

(OP)
Can I get away with 20 foot spaced control joints in a concrete slab that is 4 inches thick that surrounds an in- ground pool at a country club. The control joint is about 1/4 inch deep. The area is somewhat irregular in shape requiring an unsymmetrical control joint pattern with maximum spacing of 20 feet

RE: control joints in concrete slabs at poolside patio

Without rebar (not WWF), I would bet that you would get cracking each way at mid panel.

I would suggest control joints at 8 to 10 feet maximum in accordance with PCA requirements. Panels should be approximately square, not rectangular.

RE: control joints in concrete slabs at poolside patio

I wouldn't skimp on this location, as cracking will be noticed and you will get complaints.

RE: control joints in concrete slabs at poolside patio

jdbpe...ditto to jike and cvg comments.

Also, the control joint depth for a 4-inch slab should be 7/8" - 1", and saw them as soon as possible after placement, but in no case more than 12 hours after placement, preferably sooner.

RE: control joints in concrete slabs at poolside patio

Recommended minimum sawcut depth is 1/4 of the depth of the slab. I prefer 1/3.

I also prefer using a "Sofcut" saw, if available.

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