×
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

Different Types of Water Reducers

Different Types of Water Reducers

Different Types of Water Reducers

(OP)
Can somebody explain to me what is the difference between, normal, mid range, and high range water reducers?

Thanks!

RE: Different Types of Water Reducers

Water reducing admixtures change the properties of fresh concrete, but still allow a predictable and acceptable final product. They allow they allow concrete to be batched in either of two ways:

1. Use less water but the concrete retains expected workability. Within reason, less water tends to give stronger concrete.

2. Use the specified amount of water but the concrete will have improved flowabilty without loss of air entrainment or slowing the setting time.

The words you reference, "normal", "mid range" & "high range" are relative measures of how much effect each product has on the concrete. Since each admixture manufacturer has their own definition of what those words mean, it is not really possible to give specific "generic" definitions.

www.SlideRuleEra.net idea

www.VacuumTubeEra.net r2d2

RE: Different Types of Water Reducers

ASTM C494 "Standard Specification for Chemical Admixtures for Concrete" gives the following definitions:

Water-Reducing Admixture - An admixture that reduces
the quantity of mixing water required to produce concrete of a given consistency.

Water-Reducing Admixture, High Range — An admixture
that reduces the quantity of mixing water required to produce concrete of a given consistency by 12 % or greater.

 

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