×
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

Super-P in highrise concrete

Super-P in highrise concrete

Super-P in highrise concrete

(OP)
I posted similar thread at Stuctural Engineering other topics site, thread507-202506: Super-Plasticizer for high-rise concrete structure.
If ACI doesn't has any super-p requirements, do you kow any rule of thumb from concrete engineering points of view?
So far all I found out is to use super-p on 10,000psi or higher strength, on shearwall and/or columns with pump mix(pearock).
Remaining highrise concrete can be regular mix pumped to place for elevated slab without super-p or pump mix
Any advice?

RE: Super-P in highrise concrete

After 25+ years working for ready mix concrete producers, I would prefer to see all pumped concrete with a high range
water reducer( super p ). Depending on the length of line you are pumping through, the mix can easily lose 2 - 3 inches of slump.  With lightweight concrete, this loss is even higher.  The admixture manufacturers have refined their product so much over the years that you can fairly easily dial in the slump you require without sacrificing strength through the addition of water.

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