WOCA Short Course

The Science of Ash Utilization

This short course will cover basic information about the science and technology of coal combustion by-products. It will be taught by leading experts from academia and industry in two parallel tracks, offering more choices for students.

Faculty: - See Below
Title: The Science of Ash Utilization
Date: Monday, April 22, 2013
Time: 8:00 a.m. to 5:00 p.m.
Meals: Continental breakfast 8:00 a.m. to 8:30 a.m.; Lunch provided 12:00 to 1:00 p.m.
PDH: Six professional development hours (PDH) will be awarded on completion of this course.
Location: Lexington Convention Center

Short Course Registration - (Monday, April 22, 2013)

  • Fee - $300.00 US with conference registration - use this form
  • Fee - $375.00 US short course only - (if register prior or on to March 22, 2013) - use this registration form: Word - PDF
  • Fee - $475.00 US short course only - (if register after March 22, 2013) ) - use this registration form: Word - PDF

NOTE: Individual sessions are subject to changes in topic and/or times.


World of Coal Ash Conference 2013 Short Course
April 22, 2013
The Science of Coal Ash Utilization
Time Tracks Time Tracks
  Coal Combustion Ash
Moderator: Bob Jewell, UK CAER
  Flue Gas Desulfurization--(FGD)
Moderator: Anne Oberlink, UK CAER
Monday Morning
Introduction to Coal Combustion Ash
Robert Jewell, UK CAER

Topics: relationship between coal type and ash forms; combustion technologies; mineralogy and petrography; world classification systems (ASTM, EU, China etc.); world production and utilization.
Monday Morning
Introduction to Flue Gas Desulfurization (FGD)
Anne Oberlink, UK CAER

Topics: what is gypsum, scrubber technologies, etc.

9:00am-10:00am Fly Ash Utilization in Cement and Concrete
Robert Rathbone, Boral, Inc.

Topics: The utilization of fly ash in cement and concrete accounts for the single largest beneficial use of fly ash in the United States. This presentation focuses on the technology behind the use of fly ash in concrete and highlights the benefits and drawbacks associated with this application. Some of the benefits include improved workability, better long-term durability, as well as a reduction in CO2 emissions associated with the use of Portland cement in concrete. Some of the potential drawbacks are also discussed, including reduction in short-term strength, problems with achieving desired amounts of entrained air, and nuisance odors that can occur with ammonia-laden ash.
9:00am-10:00am FGD Agricultural Applications: Soil Amendment and Nutrient Source
Ron Chamberlain, Beneficial Reuse Management, Gypsoil Division

Topics: How gypsum impacts soils, crops and the environment with light emphasis on soil chemistry and biology as well as crop growth and development; regulatory requirements; logistical challenges; product application determination; marketing leadership and research needs.

10:00am-10:30am Ponds and Landfills - Storing and Design
Chris Hardin, Haley & Aldrich, Inc.

Topics: Presentation will be valuable to engineers and owners involved in wet ash pond closures. Information will include Wet Coal Ash Basin Closure Designs; Landfill management and leachate treatment (including ASTM D227 and LEAF); Design and Permitting; Focused Feasibility Studies.

10:00am-10:30am FGD Industrial Applications: Wallboard, etc.
Bruce Shrader, Temple-Island, Inc.

Topics: Selection methodology, specifications and conversion techniques for the use of FGD gypsum in the primary markets of gypsum wallboard and cement manufacturing applications will be presented along with a comparison of natural mined gypsum vs FGD gypsum.
10:30am-11:00am Coffee Break 10:30am-11:00am Coffee Break
  Coal Combustion Ash
Moderator: Jack Groppo,
  Environmental Track
Moderator: Tom Robl,
11:00am-11:45am Characteristics and Uses of Landfilled and Lagoon/Ponded Fly Ash
M. Roderick Jones, University of Dundee, Scotland

Topics: There are vast reserves of fly ash stored in lagoons, ponds and landfills worldwide, as, in most countries, only a minor proportion is used straight from production. Storage areas have gradually filled up and available space to continue this practice has begun to reduce. A potential solution to this growing problem lies in recovery and processing of the residues from these storage areas, for use in construction. However, the physical and chemical characteristics of fly ash are changed by storage and knowledge and understanding of the implications of these effects are needed to utilise the materials in different applications, which, in this talk, will concentrate on cementitious uses.   More...
11:00am-11:45pm Environmental Performance of Coal Combustion Product Use Applications
Ken Ladwig, EPRI

Topics: Coal combustion products (CCPs) are a raw material in many building and construction products. In recent years, concerns have been raised regarding the environmental safety of CCPs used in these applications. This short course will address research performed on the environmental performance of CCPs is a variety of uses. Information will be provided on the most common uses, including fly ash in cement and concrete, FGD gypsum in wallboard and agriculture, and coal ash in road applications. The course will also provide information on the role of leaching procedures and risk assessment in evaluation of CCP use applications.
11:45am-12:30pm Ash Beneficiation Technology
Jack Groppo, UK CAER

Topics: carbon reduction methods and practices; classification and recovery of bottom ash; recovery of ponded and landfilled ash materials; IGCC, chemistry and beneficiation of materials.
No Session


  Combined Track
Moderator: Tom Robl, UK CAER
Combined Session
New Materials and Censopheres
Ryan Brownhill, Sphere One, Inc.
Topics: Developing new markets and applications for coal combustion ash.
Combined Session

Conceptual Site Models for Coal Ash Use and Disposal, and Putting Toxicity and Risk into Context
Lisa Bradley, AECOM
Topics: Risk assessment is a powerful tool for evaluating toxicity, exposure and risk within the framework of a conceptual site model (CSM). Developing a realistic CSM for coal ash use scenarios and disposal facilities is key to providing context to the components and results of a risk assessment. These topics will be discussed using landfills, ponds and beneficial use applications as examples.

Coffee Break
Combined Session

Coal Ash Regulations Update
John Ward, John Ward, Inc.
Topics: Federal coal ash regulatory history; Overview and status of current EPA rulemakings under Resource Conservation and Recovery Act and under Clean Water Act; Outlook for legislative and judicial activities that may affect federal regulations.


Any questions should be directed to:

Ms. Alice Marksberry
University of Kentucky
Center for Applied Energy Research
2540 Research Park Drive
Lexington, KY 40511-8410, USA
Phone: 859-257-0311
Fax: 859-257-0220