ACI San Diego June 12, 2018 Luncheon “Petrographic Methods in Forensic Investigations”

June 12, 2018
11:30 AM - 1:30 PM
 Add to Calendar

Stone Brewery in Liberty Station
2816 Historic Decatur Rd. #116
San Diego, CA 92106

0.20 CEU's will be Provided



Concrete petrography involves the use of microscopy and other analytical methods to study aggregates, concrete and other cement-based construction materials. It is an essential tool for troubleshooting construction issues that may affect concrete from the day of placement to after more than 100 years in service. This presentation will review basic aspects of petrography and show attendees what concrete looks like under the microscope. Examples from specific investigations will show how petrography sheds light on understanding of mechanisms that may underlie distress indicators such as cracks and surface defects.  In addition, these examples will show how information provided by petrography can help decision makers formulate effective solutions for keeping projects on track and moving forward in an economically viable manner. Presentation also addresses issues relevant to Southern California, such as alkali silica reaction and salt weathering.


David Rothstein Speaker Bio

David Rothstein, Ph.D., P.G., FACI is the president and principal petrographer of DRP, a Twining Company. Located in Boulder, Colorado DRP performs petrographic analyses and other material science investigations to troubleshoot concrete construction issues and help clients improve construction practices. David is recognized nationally as a leader in petrographic analysis aggregate, concrete and other cement-based construction materials such as masonry mortar, grout, flooring system underlayments, stucco and terrazzo. David has more than twenty years of experience and has worked on more than 1,500 projects and examined more than 9,000 samples of construction materials from projects throughout the United States and around the world. Examples of this work can be seen at the company web site

David is an active member of the American Concrete Institute (ACI) and the American Society of Testing and Materials (ASTM) where he serves as a voting member on committees involved with concrete durability, petrography, aggregates, chemical reactions, stucco and plaster. He has been a member of the Society of Concrete Petrographers since its inception. He has taught courses on concrete petrography for years at the World of Concrete.


Questions: Heather Caya, ACI San Diego Chapter Executive Director or 619-733-2734

 View Photos


$40.00 ACI Member

$10.00 Student ACI Member

$50.00 Walk in Member

$45.00 Non-Member

$15.00 Student Mon-ACI Member

$50.00 Walk in Non-Member

$50.00 Vendor Table (Includes Registration)

$100.00 Vendor Table Non-Members (Includes Registration)