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


CBR Test on Clay Soils

CBR Test on Clay Soils

CBR Test on Clay Soils

Hello Everyone, I'm about to do a Soaked CBR on clay soils and I have no idea about it. I'm doing it for the first time and I've been told to do it at optimum moisture. Does that mean I should do a Standard Proctor to Determine the optimum moisture and then do the CBR test? I don't even know if my Question makes sense, Plz help

RE: CBR Test on Clay Soils

Will this be done for a roadway that has a significant amount of subgrade that is at natural, uncompacted condition? If so, I'd use the average natural condition of density from the job site. That would be on the conservative side.

RE: CBR Test on Clay Soils

Do your Proctor in the CBR molds and plot both the Proctor curve and the CBR curve, one over the other, with the commonality being the moisture content.....y-axis is max dry density and CBR value and x-axis for both is moisture content.

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!


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