Technical Committee Chairs

Kelly Cook

Kelly Cook is a graduate of Purdue University with a B.S. in Biology and a minor in Chemistry.  She is a 10+ year veteran in the Laboratory testing field with experience in Wet Chemistry and Metals based testing applications of both water and solid materials, and Aggregate and Construction materials testing, including HMA Mix Design. Kelly has held various roles in her career including lab technician, chemist, lab supervisor and currently serves as the Edw. C. Levy Co. Technical Laboratories Director. In addition to chemistry testing, Kelly is also experienced with Aggregate and Construction materials testing, including HMA Mix Design; implementing and managing a Laboratory Information Management System; maintaining and developing documents and processes for Laboratory Quality Systems to meet International and Federal Specifications; developing methods for and working on research projects; and managing day to day operations of Levy Technical Laboratories.  Kelly is an active member of the Transportation Research Board, Indiana Mineral Aggregates Association, National Slag Association, ASTM International, and Association of Official Agricultural Chemists. In addition to serving as Co-Chair for the NSA Technical Committee, Kelly also serves on the AFP70 Mineral Aggregates Committee for the Transportation Research Board, is Chair of the Indiana Mineral Aggregates Association Technical Committee, Chair of ASTM D4.99 Sustainability Committee on Road and Paving, and Membership Secretary for ASTM D04 Committee on Road and Paving Materials.  She is CAPP and HMA certified and qualified in the State of Indiana. Kelly has written several papers and presented at various meetings and conferences including the Transportation Research Board, American Association of State Highway Testing Officials (AASHTO) Re:Source Technical Exchange, Purdue Road School, American Society of Civil Engineers (ASCE), Global Slag, ASTM International, American Iron and Steel Institute (AISI), Steel Manufacturers Associations (SMA), Mississippi State University Slag Workshop and National Slag Association Annual Meeting.

In addition to her work responsibilities, Kelly is married with 4 children (all girls) and spends her “free time” watching her husband coach as her kids kick balls around on the soccer field and helping to coach volleyball for her kids. When she’s not chasing after kids, she enjoys getting lost in a good book and baking.

Jennifer Rederick

Jennifer Rederick is a graduate of Kent State University, with an A.A.S. in Environmental Health & Safety and a B.S. in Environmental Technology.  She completed her studies in Chemistry/Physics at Youngstown State University for entry to their master’s degree program.  Jen has 25+ years in an analytical laboratory setting, with a focus in environmental and industrial quality laboratories.  Jennifer is currently the Quality Manager for Performix Technologies, the Metallurgical Division of Harsco Environmental.  She manages two analytical laboratories and one aggregate laboratory, manages/maintains the ISO 9001:2015 QMS for two production facilities and authors Safety Data Sheets for all finished products.  Jen’s laboratory experience includes TCLP preparation, mercury analysis, soluble silicon extraction/analysis, ICP, XRF, XRD and C/S analysis as well as various aggregate testing procedures. 


2023 Technical Committee Presentation
2023 Safety Committee Presentation
2023 Operations Committee Presentation
2023 Marketing Committee Presentation
2023 Allied Member Presentation
MaryEllen Griffin – Keep Calm and Embrace Change
Thomas Reich – Transformation of the Steel Industry and Implications for the Slag Value Chain
Rock Vitale – Testing Data from the Measurement of Hexavalent Chromium in Representative Steel Slags
Michael Telischak – Carbon-Negative Concrete Production Using Steel Slag
Kevin Kees Frank Stowesand – Thermographic Slag-Pot Monitoring System (SMS)
Kenyarda Edwards – OSHA Statistics and Hazards
Deb Proctor – Updated Human Health Risk Assessment for EAF Slag
Ryan Hyatt – Drones and Image Capture Technology in the Slag Industry
Len Lawrence – SEEN Anti Collision Safety Device
Kevin Rohlwing – Improving Tire Safety and Performance
Justin Ganschow – My Brain Made Me Do It
John Yzenas – PCR EPDs – Status and Updates
Jessica Lewis Isaac Howard – Mississippi State University
Jerimi Yost – Safety Culture – The Root Cause of Workplace Safety Incidents
Christof Mikat Shane Babbit Paul Diaz – Hot Box Process
Cameron Evans Oliver Schwarz – Introducing Bulk as the North American Partner for Tii Kamag
Cord Heine – Slag Utilization in Concrete and Asphalt at Nucor Steel Auburn, Inc
Zayd Sufyan – Building Relationships Through Slag
Deborah Proctor – Updated Health Risk Assessment of EAF Carbon Steel Slag
Lianna Miller – Life Cycle Assessment (LCA) and Environmental Product Declarations (EPDs) for Slag
John Yzenas Jr. – Construction Aggregate Product Category Rule (PCR)
Mel Schindler – Wheel Loader Coupler Uses in Your Operation
Constantino Lannes – Innovative and Safer Methods for Drop Ball
Rock Vitale – Chromium Chemistry with Focus on Measurement in Slag Material
Chad Rhude – Enhancing Safety and Productivity Through Remote-Control and Tele-Operation
Alex Brand – A Novel Method to Measure CO2 Uptake: Application to Steel Slags
Rob Wark – Reduction of Labor Cost and Fuel Consumption Through the Implementation of Premium Engineered Wear Resistant Liner Systems
Bora Cetin – Experimental and Numerical Analysis of Leachate from Air Cooled Blast Furnace Slag Materials
David Dessureault – Evaluation of the Durability of EAF-C Steel Slag Utilizing Various Methodologies
Dan Petricini – Your Slag Pot an Engineered Asset
Craig Heidrich – Standard Specification for Low Carbon Concrete using Fly Ash and Slag
Charles Ochola – A review on the current state of the slag Industry, challenges faced, and steps being taken to address these challenges
Slag Runner – June 2022
Characterization of Electric Arc Furnace (EAF) Steel Slag for Unbound Applications
NSA Vaccine Letter
Safety Committee – Communication on COVID-19
Asphalt Magazine – World’s Strongest Intersection Leaves Teenage Years Behind
Slag Runner – May 2019
SLAG-A Green Product
Utilization of Steel Slag to Remediate Acid Mine Drainage
Sudden Stops and starts don’t bother Illinois Tollway Plaza”
Slag Used in Unique Designs for Highway Base over Very Soft Sub-Soil
Michigan Tests Reconfirm Superior Friction Qualities of Steel-Industry’ Slags
Steel Slag Required on Illinois State Toll Highway
The Polishing Resistance of Selected Slag Aggregates”, Hegmon & Ryan, Report No. S37