Who We Are
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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 WA ACI Membership Video


MSHA Spring Thaw
Save the Date: April 1, 2020
A collaborative event bringing together agency, industry, and safety resources to advance and promote good safety practices, reduce incidents, and provide compliance tools.

MSHA Part 46 Refresher Training - See Events list for details & registration
January 30, 2020 - Mt Vernon, WA Completed
February 12, 2020 - Tacoma, WA Completed

The 2019 Excellence in Concrete Awards was September 26, 2019. Click here for more information!

The 2019 – 2020 WA ACI certification schedule and registration info is posted on the home page and under the WA ACI Certifications tab. Scroll down on Home page for schedule and more info.
New certification programs are also being planned for 2020.  Watch our website for more details when published.

Leadership & Committee Information

ACI Chapter News

Our WA ACI season begins in October of each year. Joint dinner meeting is scheduled with SEAW in February 2020.  See details: Planning & Dates for 2019 – 2020/schedule

Membership renewal were sent in November. Please update your contact information and corporate members with your dues payment.

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



  • 2020 Certification Session Dates and More Info links (below) are active once session details are confirmed.
  • Registration opens for a session once it has an active More Info/Register link in red.

2020 Seattle Sessions:             Schedule subject to full sessions

  • ACI Field Testing:       Jan. 14 & 18, 2020 | Seattle Area  | *Saturday Performance | Class COMPLETED
  • ACI Field Testing:       Feb. 12 & 13, 2020 | Seattle Area  |  Class COMPLETED
  • ACI Field Testing:       Mar. 26 & 28, 2020 | Seattle Area  | *Saturday Performance | More Info/Register
  • ACI Field Testing:       April 2020 | Seattle Area  |  OPEN MONTH
  • ACI Field Testing:       May 12 & 16, 2020 | Seattle Area  | *Saturday Performance | More Info/Register
  • ACI Field Testing:       June 10 & 11, 2020/WSDOT | Tumwater, WA |  More Info/Register
  • ACI Aggregate Testing Level 1:      March 20, 2020 | Seattle Area  |  More Info/Register
  • ACI Strength Testing Technician:   February 10, 2020  | Seattle Area |  Class COMPLETED


2020 Spokane Sessions:         Schedule subject to full sessions

  • ACI Field Testing:        February 19 & 20, 2020 | Spokane Area  | More Info/CLASS FULL
  • ACI Field Testing:        April/May | Spokane Area  | More Info/Register
  • ACI Aggregate Testing Level 1:      March 10 & 11, 2020 | Spokane Area  |  More Info/Register
  • ACI Strength Testing Technician:   March 10 & 11, 2020  | Spokane Area  |  More Info/Register

  Please check back for more dates and registration opportunities as they become available.