Who We Are

The Washington Aggregates & Concrete Association, founded in 1959, is a non-profit industry trade association representing sand, gravel, quarry rock, cement, ready mix concrete, related businesses and suppliers in Washington State. The Association is dedicated to strengthening our collective industry and to keep it abreast of the changing way we do business.

The WA State ACI Chapter is based in the Puget Sound / Seattle Metro Area and supports the concrete construction community statewide.  The Chapter conducts dinner meetings from October thru June and focuses on local area project tours, new concrete construction and material technologies, onsite demonstrations, and highlights local projects of interest.

New WACI Membership Video


Our 2019 Excellence in Concrete Entries are now being accepted!   Click here for more information!

The 2019 – 2020 certification schedule planning is underway. Click here to view preliminary sessions for Field testing.
Agg & Strength are also being planned.

Leadership & Committee Information

ACI Chapter News

Our WA ACI season begins in October. Joint dinner meetings are planned with PS CSI in Jan. 2020 and SEAW- Feb. 2020. Stay tuned for the 2019 – 2020 schedule

Membership renewal will be sent on or about October 1. Please update your contact information and corporate members with your dues payment. Thank you for your renewal in advance.

In an effort to work more closely with our Student Chapters, and to encourage student attendance at Chapter Meetings, you can now upload available internships during Chapter Dinner registrations!   

Register For An Event



As registration forms become available, they will be posted on our calendar! Certification sessions will be posted once confirmed.  Quarterly registrations will open for field.  Agg & stronger will open as sessions are confirmed.

ACI Aggregate Testing 
 |  Seattle Area  |  More Info
ACI Field Training  |  Spokane Area  |  More Info
ACI Strength Testing 
 | Seattle Area  |  More Info
ACI Field Testing  |  Seattle Area  |  More Info
ACI Field Testing  |   Spokane Area  |  More Info
ACI Aggregate Testing  |  Spokane Area  |  More Info
ACI Strength Testing  |  Spokane Area  |  More Info

Click below to visit our upcoming events!

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