ACI Committee 555 Recycled Materials
Chair 2009-present
Voting Member 2001-present

ACI Committee 363 High Strength Concrete
Voting Member 2001-present

ACI Committee 446 Fracture Mechanics
Associate Member 2009-present
Voting member 2001-09

ACI Innovative Task Group 4: High Strength Concrete in Seismic Applications
Voting Member 2003-07

Member of the Planning Board for the ACI Fall 2003 Convention in Boston.  Responsibilities included organizing the student program, assisting with fund raising, and serving as a liaison between the planning board and ACI.

Member of the steering committee for Indo-U.S. Workshop on High Performance Cement-based Concrete Composites, Chennai, India, Jan. 4-5, 2005.

Conference Sessions Organized or Moderated

Organizer of Concrete Winter Bootcamp an eight hour workshop sponsored by RC³ and held at Tufts University for practicing Civil Engineers. Jan. 16, 2001.

Co-organizer and co-moderator of "Recycling Concrete and Other Materials for Sustainable Development" Session at ACI Spring 2003 Convention, Vancouver, BC, Mar. 30 – Apr. 3.

Organizer and Moderator of "Fracture Mechanics: Testing and Applications" Session at ACI Fall 2003 Convention, Boston, MA, Sept. 27 – Oct. 1.

Co-Organizer and Moderator of "Major Projects in Boston" Session at ACI Fall 2003 Convention, Boston, MA, Sept. 27 – Oct. 1.

Moderator for "Next Generation Cement-Blends for High Performance" Session at Indo-U.S. Workshop on High Performance Cement-based Concrete Composites, Chennai, India, Jan. 4-5, 2005.

Session Chair of "Condition Assessment/Health Monitoring/Rehabilitation" at the International Conference on Advances in Concrete Composites and Structures, Chennai, India, Jan. 6-8, 2005.

Co-Organizer and Moderator of "Concrete with Recycled Materials Part I and II" Sessions at ACI Spring 2005 Convention, New York, NY, April 17 – 21.