Speaker:  John Gnaedinger

Description of presentation material:
- What properties of early-age concrete should be monitored during the construction process?
- Why should we be monitoring the concrete in the first place?
- How can we monitor the concrete easily and inexpensively?
- Now that we are monitoring the concrete, we want to see the data remotely. How is that accomplished?
- And finally, what can I do with all this information? How will it improve the construction process, from quality control, scheduling, and safety, to energy efficiency?

Using case histories and supporting research, the benefits of monitoring concrete
temperatures and conducting maturity testing for virtually any structural concrete project
will be discussed, particularly post-tensioned and other high-risk structures, with a focus
on extreme climate conditions (hot and cold weather). A brief technical introduction to
maturity testing will be included. And finally, using examples of new wireless
technology, the ability to make important decisions about critical construction
milestones remotely and in real time will be explored.

Speaker’s Professional Background:
Mr. Gnaedinger is the founder and Director of Engineering Services at Con-Cure, LLC.,
which has conducted more than 50,000 concrete maturity tests covering many high-risk
applications across the globe, including post-tensioned structures, concrete bridges,
mass concrete and high-rise buildings over the past 25 years. Con-Cure’s innovative
concrete technologies have been awarded “Most Innovative Products” multiple times
at World of Concrete. He is a member of the American Concrete Institute, where he is a
voting member of the ACI Cold Weather committee 306. He is a member of ASTM,
where he is a voting member on the standards committee for Maturity (C1074). He also
served on the Cold Weather committee of the Concrete Foundations Association, and is
active in the Concrete Council of St. Louis.