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 WA ACI Membership Video

Job Annoucement!

Member Services Director: WA Aggregates and Concrete Association is seeking an organized, outgoing, self-motivated and small team orientated individual for our two person office that can support our strong record of providing value and enhancing relationships with our members. Learn more and apply here!


The 2019 Excellence in Concrete Awards was September 26, 2019. 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. Planning & Dates for 2019 – 2020/schedule

Membership renewal will be sent in mid-November. 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




ACI Certification

  • 2020 Certification session dates will be posted once session details are confirmed.
  • Registration opens once a session is posted with an active registration link
  • Seattle ACI Field sessions will be scheduled each month beginning in January 2020


2020 Seattle Sessions:                   Schedule subject to full sessions

  • ACI Field Testing:               Jan. 2020 | Seattle Area  | *Saturday Performance |  More Info 
  • ACI Field Testing:               Feb. 2020 | Seattle Area  |  More Info
  • ACI Field Testing:               Mar. 2020 | Seattle Area  | *Saturday Performance | More Info 
  • ACI Field Training:              April 2020 | Seattle Area  |  More Info
  • ACI Field Training:              May 2020 | Seattle Area  | *Saturday Performance | More info
  • ACI Field Training:              June 2020 | Seattle Area |  More Info


  • ACI Aggregate Testing Level 1:       Feb. or March  | Seattle Area  |  More Info
  • ACI Strength Testing Technician:    Feb. or March  | Seattle Area  |  More Info


2020 Spokane Sessions:               Schedule subject to full sessions

  • ACI Field Testing:               Jan. 2020 | Spokane Area  |  More Info 
  • ACI Field Testing:               Mar. 2020 | Spokane Area  | More Info 


  • ACI Aggregate Testing:      Feb. or March  | Spokane Area  |  More Info
  • ACI Strength Testing:         Feb. or March  | Spokane Area  |  More Info

  Please check back to this website for dates and registration details posted after January 1, 2020.