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

Concrete moisture

Concrete moisture

Concrete moisture

In general what is the acceptable moisture percentage in cured concrete?

RE: Concrete moisture

What is the concrete application: Wall, free-standing bridge deck, column, sidewalk on wet ground, foundation below the water table, dam?

RE: Concrete moisture

It is a roof slab for a control building

RE: Concrete moisture

The roof should be covered or protected with some membrane or chemical topside to prevent water intrusion into the otherwise-base and exposed concrete. It is sloped, and if so, by how much? Water (rain) or snow loads as well? And have you verified there are no "ponds" or continuous wetted areas that do not drain?

RE: Concrete moisture

Thanks, I was simply asking about concrete moisture. Do you know who might be able to answer this question?

RE: Concrete moisture

shonuff....the acceptability of moisture in concrete depends on the application. For example, if you are considering applying a surface treatment to the concrete or if you are applying an adhesive to attach something to the concrete (flooring, roofing, etc.), the moisture content should be as low as possible and the pH should be allowed to reach a relatively low level as well. The moisture content in such applications should be in the range of 5 to 8 percent or even less. The pH should be in the 10 range for coating or latex adhesive application.

Otherwise, the moisture content in concrete is somewhat irrelevant and it is ok for it to be high as this allows better durability and strength in the concrete.

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


eBook - Simulation-Driven Design with SOLIDWORKS
Simulation-driven design can reduce the time and cost of product development. In this engineering.com eBook, we’ll explore how SOLIDWORKS users can access simulation-driven design through the SOLIDWORKS Simulation suite of analysis tools. Download Now
eBook - Integrating the Engineering Ecosystem
Aras Innovator provides multiple options for integrating data between systems, depending on the scenario. Utilizing the right approach to meet specific business requirements is vital. These needs range from authoring tools, federating data from various and dissimilar databases, and triggering processes and workflows. Download Now
Research Report - Simulation-Driven Design for SOLIDWORKS Users
In this engineering.com research report, we discuss the rising role of simulation and the paradigm shift commonly called the democratization of simulation. In particular, we focus on how SOLIDWORKS users can take advantage of simulation-driven design through two analysis tools: SOLIDWORKS Simulation and 3DEXPERIENCE WORKS. Download Now

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