Join an ACI Committee - If you are interested in joining an ACI technical or educational committee as an associate member, click here to apply. As an associate member, you will meet professionals in the industry who are focused on advancing concrete knowledge in any number of specific topics, and contribute to publishing industry-leading committee standards and reports. You will be encouraged to participate in committee discussions and demonstrate your knowledge of various topics. ACI Student E-Members are encouraged to join one committee - for a list of committees, click here.