December 16, 2021 - 8:00am to 12:30pm

This presentation will cover exactly what Engineers need to know about concrete mix design:

  • Concrete mixture considerations
  • History of mixture proportioning in the US
  • ACI 211.1 – Standard Practice for Selecting Proportions for Concrete
    • Fundamentals
    • Mix Design Example
  • Concrete mixture considerations for exposure
    • Freeze/thaw
    • Alkali-silica reactivity
    • Sulfates
    • Corrosion
  • High strength concrete
  • Lightweight concrete
  • Self-consolidating concrete
  • Low heat concrete
  • Bridge deck concrete
  • Placement, conveyance, and finishing considerations
  • Carbon footprint considerations

Learning Objectives

  • Learn the history of concrete proportioning in the United States.
  • Develop an understanding of the fundamental principles of concrete mixture proportioning.
  • Learn application and exposure specific considerations for concrete proportioning.


This is a virtual event on Zoom. Please register before 10:00am on Monday, 12/15/2021, to ensure you receive access to the presentation.

Early Bird Rate (before 11/22)

Members - $100
Non-Members - $200

After 11/22

Members - $150
Non-Members - $300

Attendees will receive 4 hours of CE credit

About the Speakers

Todd Nelson, PE - Associate Principal
Wiss, Janney, Elstner Associates, Inc.

Mr. Nelson has been with Wiss, Janney, Elstner Associates, Inc. (WJE) since 2000 and has more than twenty years of experience in the concrete industry. Mr. Nelson is an Associate Principal at WJE, which includes responsibilities as a project manager, project advisor, and mentor. His project management experience includes a wide variety of concrete forensic investigations, laboratory evaluations, applied research and repair projects. Concrete repair and forensic projects include a wide variety of concrete infrastructure including bridge decks, pavements, water structures, nuclear plants, parking garages, and slabs-on-ground. Mr. Nelson promotes and utilizes many field investigation techniques (such as non-destructive testing, hands-on distress mapping, physical measurements, and sample procurement), laboratory evaluations (such as concrete petrography, chemistry, and physical testing) and analytical tools for concrete forensic investigations and repair projects. Mr. Nelson also has a strong background in evaluation of concrete materials for durability, physical properties, and high performance characteristics (low permeability, durability, high strength, acid attack, ultra-high performance concrete - UHPC, self-consolidating concrete -and SCC).

Scott Kelly, Technical Director  

Mr. Kelly has been with Ozinga Ready-mix since 2005 and has extensive knowledge of QC/QA programs, commercial and municipal specifications, and mix design development.  Mr. Kelly has held positions as Technician, Operations Manager, Project Manager, Quality Control Manager and currently holds the position of Technical Director for all Ready-mix, cement and aggregate operations.  As Technical Director, Mr. Kelly oversees the Research and development and specification review divisions at Ozinga and manages all post-placement concrete-related investigations. 



Sean McGrath ( EFI Global )
Douglas Fiene ( Fiene Engineering, Ltd. )
Derek Boeldt ( Jacobs )
Nathan Schuette ( Sound Structures )
Harry Kuchma ( The Structural Group, Ltd. )
Steven Negangard ( Kuhn & Trello Consulting Engineers, LLC )
Seth Hoffman ( Brierley Associates )
Matthew Aquino ( Wight & Company )
Jorge Medina ( Burns and McDonnell )
Douglas Hardin ( Schnabel Geostructural Design & Construction )
HAIDER HIMAIRI ( Thornton Tomasetti )
Jason Dreyer ( Oates Associates )
Jared D'Amico ( K2N Crest )
Michelle Ryland ( Klein & Hoffman )
Daniel Lutz ( Oates Associates )
Nicholas Tsaggaris ( TS Engineering, LLC )
Jon Sfura ( Wiss, Janney, Elstner Associates, Inc. )