November 7, 2019 - 7:30am to 5:00pm

The Structural Engineers Association of Illinois (SEAOI) and International Concrete Repair Institute (ICRI) Chicago Chapter are pleased to announce the Assessment and Repair of Concrete Structures Seminar! The Seminar provides the background for investigating and repairing concrete structures from a forensics perspective and includes a laboratory program to demonstrate repair applications. The Seminar is designed for all professionals interested in the repair of concrete structures.

Attendees of the Full Program will earn 6.5 hours of continuing education credit

Attendees of the Lab/Networking Program will earn 2 hours of continuing education credit

Learning Objectives

  • Learn the signs of concrete deterioration and the underlying mechanisms that lead to visible deterioration
  • Understand methods and equipment used to assess existing structures including non-destructive testing elements
  • Learn methods for analyzing and repairing existing concrete structures
  • Learn ways to increase durability of concrete repairs and assess the service life of the structure
  • Learn experiences, best practices, and lessons learned from recent repair projects
  • Attend hands-on demonstration of various repair techniques and materials


  7:30am – 8:00am


  8:00am – 9:30am

 Signs of Deterioration and Underlying Mechanisms
 Colin Rueb, Raths, Raths & Johnson, Inc. and Anthony Bentivegna, Jensen Hughes

  9:30am – 9:45am


  9:45am – 10:30am

 Non-Destructive and Destructive Evaluation Techniques
 Nate Rende, Wiss, Janney & Elstner and Ryan Carris, Walker Consultants

10:30am – 11:30am

 Repair Design and Material Selection
 Kevin Conroy, Simpson, Gumpertz & Heger

11:30am  – 12:00pm


12:00pm – 1:00pm

 Concrete Protection Systems and Service Life
 Kyle Stanish, Klein & Hoffman

  1:00pm – 1:45pm 

 Project Case Study
Paul Gaudette, Wiss, Janney & Elstner and Don Reder, Bulley & Andrews Concrete Restoration

  1:45pm – 2:00pm


  2:00pm – 4:00pm

 Laboratory Program

  4:00pm – 5:00pm

 Networking Event

Laboratory Program 

After the classroom portion, attendees will visit various exhibits in the WJE laboratory to engage in hands-on activities discussed in the classroom portions. Exhibits will be led by industry experts and include the following topics:

  1. Field Evaluation Techniques
  2. Laboratory Evaluation Techniques
  3. Concrete Crack Repairs
  4. Concrete Topical and Buried Membranes
  5. Concrete Coatings and Sealers
  6. Concrete Repair Materials


Wiss, Janney, Elstner Associates, Inc.
330 Pfingsten Road
Northbrook, Illinois 60062


Registration and breakfast will be available at 7:30 am, and the program begins at 8:00 am. Lunch will be provided. This is a members-only event. Registration is $250 for the Full Program and $100 for the Lab/Networking Sessions only.  Types of registration below:

  • Full Program (Seminar, Laboratory Program, and Networking Event) SOLD OUT FOR SEAOI and ICRI MEMBERS!
  • Laboratory Program and Networking Event (No Seminar)


  • Gold Level ($600) 
    • Logo included in event program and all marketing materials
    • One registration to the Full Program or Laboratory Program
    • One booth space during networking hour
  • Silver Level ($400) 
    • Logo included in event program and all marketing materials
    • One registration to the Full Program or Laboratory Program
  • Bronze Level ($250) 
    • Logo included in event program and all marketing materials







Anthony Bentivegna, PH.D., P.E. - Jensen Hughes

Anthony Bentivegna, PhD, PE is a Senior Civil Engineer with over 12 years of experience in the concrete industry, with specific focus on the study of concrete materials, standardized testing practices, as well as construction related consulting and forensic services. Dr. Bentivegna's areas of expertise include cementitious materials, concrete durability, with a focus on alkali-silica reaction and delayed ettringite formation, as well as subsequent repair practices and remediation design. He specializes in forensic investigations, including determining the root cause of failures of concrete, as well as novel construction products and building materials. His experience concentrates on laboratory investigations accompanied by on-site investigation through visual, destructive and non-destructive testing (NDT), and correlation of findings between the field and laboratory. Dr. Bentivegna's field work is supplemented and enhanced by his deep materials laboratory testing experience, where he is knowledgeable in both conventional test practices as well as creating proprietary methods for unique materials testing applications.

Colin Rueb, P.E. - Raths, Raths & Johnson, Inc.

Colin Rueb has over five years of engineering experience in structural investigations and material analysis to determine failure causation related to concrete and prestressed concrete construction. With his knowledge of concrete deterioration issues, he has developed repair designs to address corrosion, strengthening, spalling, and other problems. His experience has included condition surveys, field investigations, structural analysis, and finite element modeling of distressed facade systems, building components, and various structures.

Signs of Deterioration and Underlying Mechanisms
This session will discuss various deterioration mechanisms that lead to concrete deterioration.  Topics will include corrosion of embedded reinforcement, freeze thaw deterioration, carbonation effects, Alkali-Silica reaction and other internal chemical reactions.

Ryan Carris, P.E. - Walker Consultants

Ryan Carris is a Restoration Consultant and project manager at Walker Consultants where he is responsible for evaluation, design and project management. Ryan has over 20 years of experience in investigating and evaluating the contributing causes of distresses and construction related defects on a wide variety of structures, including: medium and high-rise buildings, parking structures, athletic stadiums, commercial and residential buildings. Investigations have involved cast-in-place concrete, precast/prestressed concrete, post-tensioned concrete, masonry, steel, and timber. Ryan is co-author of “Chapter 15 Maintenance and Repair” in the International Parking Institute’s “Guide to Parking” text book.

Nate Rende, P.E., S.E. - Wiss, Janney, Elstner Associates

Since joining WJE in 2005, Nathaniel Rende has been a project associate and manager for a broad range of assignments, including structural condition assessment, testing and instrumentation, and repair design. He specializes in applying nondestructive evaluation (NDE) methods to the evaluation of concrete, stone, and masonry structures. He has investigated as-built conditions and distress in historic buildings, prestressed and post-tensioned concrete structures, industrial tanks and cooling towers, bridges, parking garages, slabs-on-ground and pavements, and foundations. Mr. Rende is also experienced in structural health monitoring using acoustic emission and measurement and analysis of earth-borne and structural vibrations. He is is affiliated with several professional societies, is a member of technical committee ACI 228 and associated subcommittees, and has given technical presentations and seminars in nondestructive evaluation and vibration assessment throughout the nation.

Non-Destructive and Destructive Evaluation Techniques
While some deterioration can be visible, there are many deterioration mechanisms that are not visible even to trained engineers.  This session will discuss techniques used by engineers in assessing deterioration within an existing structure including ways to identify both visible and invisible deterioration including concrete delaminations and carbonation.  Destructive testing topics will include material samples used to determine material strengths that are used in later repair designs.  The session will describe the advantages and disadvantages of various Non-Destructive techniques.

Kevin Conroy, S.E., P.E. - Simpson, Gumpertz & Heger  

Kevin Conroy has more than eighteen years of experience specializing in investigations, evaluations, and the development and implementation of repair designs for deteriorated structures and building envelope components.  His investigations have involved visual surveys, existing condition documentation, water infiltration testing, material sampling, performing nondestructive testing and full-scale in situ load testing.  These projects have involved a range of material types, including cast-in-place, precast, and post-tensioned concrete, granite, marble, steel, and timber.  He has conducted facade examinations in numerous major cities to ensure compliance with exterior facade ordinances.  With his expertise in repair design, Mr. Conroy has led major projects involving structural rehabilitations, strengthening of existing systems, and repairs to existing building envelopes. 

Repair Design and Material Selection
Once deterioration is identified, it likely requires repair.  Proper repair design and repair material selection area two crucial components that lead to successful repairs.  If the repair design or material selections do not address or accommodate the underlying deterioration mechanisms, the repair will likely fail prematurely.  This session will discuss key factors that the engineer must consider during the repair design.

Kyle Stanish, Ph.D., S.E., P.E. - Klein & Hoffman

Kyle Stanish, Ph.D., S.E., P.E., ACI member, is a Senior Associate II at Klein & Hoffman in Chicago, IL.  He completed his Ph.D. in 2002 at the University of Toronto, Toronto, Canada.  He has more than 13 years of restoration experience, working with universities, hospitals, and public and private owners across the country and is a licensed professional or structural engineer in Illinois, Indiana, Tennessee, and North Carolina.  He is currently the Chair of ACI 365: Service Life Prediction and Chair of Subcommittee 562F on Durability.  He is a Voting Member of ACI committees 364: Rehabilitation, 562: Repair Code and 563: Repair Specifications.  

Concrete Protection Systems and Service Life
Satisfying strength requirements is just one step towards long-term performance of a repaired structure. Improving the durability of repairs and repaired structures is one way to address the high rate of repair failure due to repairs lacking adequate durability.  Durability in repaired structures is complicated as it requires consideration of many conditions outside of the repair area, such as structure use and exposure. Additionally, the service life of both the repair area and the repaired structure need to be taken into account.  Concrete protection systems, such as discrete anodes and coatings, are one way to improve the durability of repairs.  The session will also include a brief discussion of service life prediction and the various approaches to determine the prediction.

Don Redar, Principal - Wiss, Janney, Elstner Associates

Since joining WJE in 1984, Paul Gaudette has investigated several hundred structures exhibiting conditions of distress and deterioration in a variety of materials, including concrete, brick masonry, stone, stucco, terra cotta, steel, wood, and curtain wall facades. Mr. Gaudette has participated in the evaluation and development of recommendations for repair of modern and historic concrete structures and other distress conditions, selection of coatings for exterior facades, design of anchorage details; water penetration testing, preparation of repair drawings and specifications, and field observation during construction. He has also performed investigations, analysis, and repair design to address distress conditions in structural and nonstructural components of reinforced concrete parking garages. Mr. Gaudette is the author of numerous papers and articles and has given professional seminars on building envelope maintenance, repair, moisture, and thermal-related issues. He was lead instructor for four two-day workshops on repair of historic concrete for the Association for Preservation Technology International. He also is an instructor for the American Concrete Institute (ACI) Seminar Series, Concrete Repair Basics, and the two-day Concrete Repair Workshop.

Don Redar, - Bulley & Andrews Concrete Restoration

Don Redar is an industry veteran with over 35 years of concrete restoration expertise. Don began his career as a field laborer with Takao Nagai Concrete Restoration, where he served as superintendent, project manager, and vice president. Don now is vice president and head of the Bulley & Andrews Concrete Restoration (BACR) division, which acquired Takao Nagai Concrete Restoration.

As vice president, Don oversees the division’s day-to-day operations while developing new and nurturing existing client relationships. Under his direction, BACR has mastered the art of plaza restoration, as evidenced by projects such as 10 S. Riverside Plaza, 120 S. Riverside Plaza, and 222 S. Riverside Plaza. Don’s management has also led BACR to augment their self-perform work, which includes post tension tendon repair and hot rubber waterproofing. Don has also worked on historic concrete repair projects, such as the renovations of Soldier Field and the 63rd Street Beach House.

Don is an active leader in the industry, serving as an affiliate member of the Structural Engineer Association of Illinois (SEAOI), and a member of International Concrete Restoration Institute (ICRI), Sealant Waterproofing Repair Institute (SWR), American Shotcrete Association (ASA), Building Owners Managers Association (BOMA Suburban), American Concrete Institute (ACI), Illinois Real Estate Management (IREM) and the Association of Preservation Technology, Western Great Lakes Chapter (APT WGLC).



Tom Lawler ( Hach Construction )
Dan Ranien ( JLJ Contracting )
Mike Gruzaiski ( JLJ Contracting )
Scott Edling ( JLJ Contracting )
Steve Genovese ( Western Specialty Contractors )
Tim Findley ( Monson Nicholas, Inc. )
Thomas Steele ( Quality Restorations, Inc. )
Harish Virmani ( Harish C. Virmani Structural Engineer Consulting, Inc. )
Nishan Pethiyagoda ( Hilti, Inc. )
Eduardo Prieto ( Cordogan Clark & Associates )
Peter Nelson ( Wiss, Janney Elstner Associates, Inc. )
Mel Cowen ( Structural )
Gina Beldea ( Structural )
Jason Krohn ( S. K. Ghosh Associates LLC )
Luis Arenzana ( HWR, Inc. )
Moshe Calamaro ( Moshe Calamaro & Associates )
Manny Alanis ( Zera Construction )
Chris Zera ( Zera Construction )
Bill Schaefer ( American Hydrotech, Inc. )
Don Redar ( Bulley & Andrews Concrete Restoration )
James Masterfield ( Bulley & Andrews Concrete Restoration )
Joe Cortese ( Bulley & Andrews Concrete Restoration )
Scott Edling ( JLJ Contracting, Inc. )
Mike Gruzalski ( JLJ Contracting )
Dan Ranieri ( JLJ Contracting, Inc. )
Bruce Unruh ( American Hydrotech, Inc. )
Joseph Mascio ( Tremco CS&W )
Jim Fadellin ( HSS Hard Surface Solutions )
Steve Silva ( Tremco )
Robert Lansdown ( SIKA )
Mike McCluskey ( BASF )
Charles Gasser ( American Structurepoint )
Michael Wiscons ( Building Technology Consultants, Inc. )
George Mulholland ( Raths, Raths & Johnson, Inc. )
William Godfrey ( DeSimone Consulting Engineers )
Michael Kernan ( Vector Construction )
Cody Bush ( Vector Construction )
Stephen Dillon ( Hempel (USA) Inc. )
Dan Anagnos ( Hempel (USA) Inc. )
Arden Kurtjian ( Hempel (USA) Inc. )
HAIDER HIMAIRI ( Thornton Tomasetti )
Sean Overholt ( TGRWA, LLC )
Joel Sauer ( Structural Preservation Systems, LLC )
Thomas Lawler ( Hach Construction )
John Henik ( J.V. Henik, Inc. )
Ryan Wagner ( American Structurepoint )
Nezar Abraham ( Consulting - Forensic - Property Loss )
John Orr ( Berglund Construction )
Braxton Stephan ( Berglund Construction )
Frank Grice ( Berglund Construction )
Mike Divine ( Berglund Construction )
Rebecca Havel ( Simpson Gumpertz & Heger )
Derek Boeldt ( Chicago Transit Authority )
Tejasvee Prasad ( Thornton Tomasetti, Inc. )
Jessica Newell ( The Sherwin Williams Company )
Stephen Schmitt ( Wiss, Janney, Elstner Associates, Inc. )
Jesus Alquicira ( CTA )
Matthew Wooden ( Brindley Engineering )
Tony Pivo ( ClockSpring | NRI | Milliken )
Tom Vacala ( Restore Masonry LLC )
Al Arreguin ( IW & G, Inc. )
Ron Bernhagen ( Pierce Engineers, Inc. )
Seth Pfeil ( Pierce Engineers, Inc. )
Scott Strnad ( mccluskey engineering llc )
Brian Dekker ( Sound Structures, Inc. )
Patrick Martin ( InterPark, LLC )
Kevin Hooley ( DSI )
Kurt Baron ( Infrastructure Systems, Inc. )
Jeff Borys ( Evonik - MPM )
Thomas Leahy ( American Structurepoint, Inc. )
Michelle Ryland ( Klein and Hoffman, Inc. )
Ryan Carris ( Walker Consultants )
Paul Gaudette ( Wiss, Janney and Elstner Associates )
Anthony Bentivegna ( Jensen Hughes )
Colin Rueb ( Raths, Raths & Johnson, Inc. )
Nathaniel Rende ( Wiss, Janney, Elstner Associates, Inc. (Northbrook) )
Kyle Stanish ( Klein and Hoffman )
Kevin Conroy ( Simpson Gumpertz & Heger )
Harry Marshall ( Harry E. Marshall Ltd. )
LISA VIKER ( Vector Corrosion Technologies )