March General Membership Meeting - Round Table on Concrete Strength Test Data - Free Lunch and Discussion!

    March 19, 2019
    11:30 AM - 2:00 PM
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    Distinctive Catering
    4945 S. Division Ave.
    Wyoming, MI 49548
    Venue website

    Free Lunch and Discussion!

    Topic:  Concrete Strength Test Data – What does it all really mean?

    Why do we make and break concrete test cylinders?  Who really cares what the strength of a cylinder is at 28 days?  As long as the concrete that we poured is hard, and cracks where we want it to and not where we don’t, what’s the difference if it’s 4,000 psi or 4,500 psi?

    Steve Waalkes will present an analysis of 17 years of strength test data from one ready-mix supplier. Recent and past trends in the data will be discussed, along with potential improvements to reduce variability of test results, including within-test variation, as well as batch-to-batch variation. A panel of industry experts will also discuss the topic and take questions from the audience.

    Steve Waalkes is the West Michigan Director of Engineering for the Michigan Concrete Association. His primary role with MCA is to assist owners, engineers, inspectors, and contractors with the design, specification, and construction of concrete pavements and other concrete-related products.  Steve also assists contractors and other MCA members with troubleshooting and technical support regarding issues with concrete design, construction, and rehabilitation.  Steve has also given workshops and presentations around North America, on concrete practices, technology, and research.

    Steve has a Bachelor of Science degree in Engineering from Calvin College and a Master of Science degree in Civil Engineering from the University of Texas at Austin. He is a registered Professional Engineer in the State of Illinois, and a member of the American Concrete Institute (ACI), the American Society of Civil Engineers (ASCE), and the National Society of Professional Engineers (NSPE).  He is a Past President of the Michigan Section of ASCE and ASCE Western Michigan Branch, and a past board member of the ACI West Michigan Chapter.  Steve enjoys working on his house, brewing beer, camping, and spending time with his wife and four boys, usually in a hockey rink.


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