Volume Changes of Concrete Webinar 11/4/10

PCA Webinar
Date: Thursday, November 4, 2010
Time: 12 - 1 pm CDT


Volume Changes of Concrete

Typical shrinkage cracks in a slab on groundThe webinar will cover the variables that affect volume changes in concrete. If concrete were free of any restraints to deform, normal volume changes would be of little consequence; but since concrete in service is usually restrained by foundations, subgrades, reinforcement, or connecting members, significant stresses can develop. Cracks can develop because concrete is relatively weak in tension but quite strong in compression.

At the end of this course, participants will have the ability to:

• Define the variables that affect volume changes in concrete.
• Understand the nature of volume changes in concrete for planning or analyzing concrete work.
• Learn how to control the variables that affect volume changes so they can minimize high stresses and cracking.

Upon completion of the webinar, registered participants will be emailed a copy of the presentation slides, a certificate for 0.1 CEU credit, and a PDF of “Volume Changes of Concrete”, Chapter 15 of PCA’s Design and Control of Concrete Mixtures, 14th edition, EB001.

The cost of this one-hour Webinar is $60.
$30 for PCA members; government officials (.gov); students and educators(.edu).