×
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

Post Tensioned CMU floor or roof system???

Post Tensioned CMU floor or roof system???

Post Tensioned CMU floor or roof system???

(OP)
Has anyone ever heard of "RAPIDEX" or "RAPIDECK" or even "DOX PLANK"??  We have a project that is experiencing some sagging in the floor system.  It sounds like this floor is a concrete block system that has steel rods running through it for tension.  It was probably built in the 50's and 60's here in Indiana.  Does anyone have experience with this??  Does anyone have old design manuals or installation guides or any information about this type of system?

I have not been to the site yet, but I want to do some research before meeting the client.  Thank you for your time!!

RE: Post Tensioned CMU floor or roof system???

I have done several remodels with this product.  A company that I used to be with had a Dox plank manual, but I don't have one anymore.

Do a search on dox plank on this site and you will get a bunch of hits.

Basically its a pan and joist concrete floor system with rebar (typically 40 ksi bar) in tension areas and clay tile cast in to reduce wieght instead of using removable forms.  The clay tile was typically designed to take some of the shear stresses.

RE: Post Tensioned CMU floor or roof system???

Its not post tensioned that I know of.  I believe that PT concrete came about in the early 70's (but am not sure).

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