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

Related Articles


Stabilized Cement Soil Mixture Design

Stabilized Cement Soil Mixture Design

Stabilized Cement Soil Mixture Design

Hello Group,

So currently I am looking at utilizing cement stabilized soil at one of my worksites for erosion control and subbase strengthing. Having looked into my state's highway design manual and a the "greenbook" I have not found anything discussing how to determine how much cement is needed to strengthen the soil to the levels I want. From what I have read typically the amount of cement that is added is anywhere from 5 to 15%. If anyone could point out a refence that shows how to make a mix design based on varying types of soils or simply tell me its based on setting up different mixtures and see how they do in a soils test please let me know.


RE: Stabilized Cement Soil Mixture Design

The amount of cement will depend on the soil type....the more granular the soil, the more cement will be required. For slightly clayey fine sands, the amount of cement to achieve about 200 psi will be about 3 or 4 percent. Clean sands will require more cement. Organic materials can cause set problems with the soil cement. Another consideration is that there are some soils that will absorb calcium from the cement, thus causing strength problems with the soil cement.

Check the PCA Soil Cement Handbook...it covers all these issues.

RE: Stabilized Cement Soil Mixture Design

PCA has some good publications, some free if you ask nicely. cement content depends on a) the compressive strength you want and b) the type of soil you have. You will need to have a lab prepare a mix design. Your geotech can easily scope this work for you.


RE: Stabilized Cement Soil Mixture Design

gravelly sands with a moderate amount of fines may work the best. Clean sands require slightly more cement and silts and clays require the most cement to coat the more numerous, smaller particles.

ASTM D558 Standard Test Methods for Moisture-Density (Unit Weight) Relations of Soil-Cement Mixtures
ASTM D559 Test Methods for Wetting and Drying Compacted Soil-Cement Mixtures
ASTM D560 Test Methods for Freezing and Thawing Compacted Soil-Cement Mixtures

AASHTO T134, T135, T136, T144

RE: Stabilized Cement Soil Mixture Design

cvg...strength of soil cement does not depend on coating all particles with cement....won't happen anyway with such low cement contents and low moisture content. That is a concrete premise.

Strength is more related to particle agglomeration than particle coating.

RE: Stabilized Cement Soil Mixture Design

I didn't mean to imply that, only that with more smaller particles, you will use more cement just to achieve the same strength as you would with a granular soil

RE: Stabilized Cement Soil Mixture Design

cvg.... Thanks for clarification.

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