Contact US

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!

*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

Use of water for compaction

Use of water for compaction

Use of water for compaction

are there any specific requirements on the water used for wetting in subgrade compaction,like TDS, chemical content?


RE: Use of water for compaction

I've never heard of anything relating to the chemical composition of water regarding subgrade compaction.

With respect to water, I can only think of the optimum moisture content determined by the proctor test.

RE: Use of water for compaction

If I remember correctly - not a good idea. Water weighs about 63 pcf while soils can go from 100-150 pcf. So water is lighter??

Looks good - just not sure if it works good??

RE: Use of water for compaction

TDS wouldn't be an issue. Water used for compaction assistance need not be potable, but should not be reactive to any of the soil components. That usually is not an issue as most structural soils are not greatly attacked by chemicals. There are some exceptions...calcareous soils are affected by acidic water. Cement stabilization can be greatly affected by organic laden water or acidic water.

Some water types can give erroneous moisture content readings when using non-oven dried techniques for moisture determination in the field. This can result in improper determination of the in-place density of the material.

Outside that, most anything wet can be used to assist compactive effort based on a properly done moisture-density relationship as determined in the lab and proper in-place density testing in the field.

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! Already a Member? Login


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