The Seattle Storm Center for Basketball Performance
Location: Seattle, Washington
Award: Lower Carbon Concrete
Project Team
Owner: Force 10 Sports Management
Contractor: Sellen Construction
Structural Engineer: Holmes US
Architects: ZGF Architects LLP and Shive-Hattery
Concrete: Stoneway Concrete
Slag Cement: Holcim
This project in Seattle, WA, USA, presented the construction team with many technical challenges, including the need to minimize the GWP as well as achieve LEED® Gold certification. Sellen Construction had placed concrete with a cement comprising 80% slag cement on a previous project and was aware that it produced a very light color after curing. The contractor therefore worked with Stoneway Concrete to use slag cement to produce the tilt-up wall panels for this project. In addition to maximizing slag cement content and using ASTM C595/C595M Type IL cement for various applications on the job, the design and construction team worked collaboratively to identify areas, like foundations and tilt-up walls, where concrete could be specified with 56-day design, rather than 28 days, further reducing the required amount of cementitious materials to achieve required strength.
Application Type
Application Type | |
% Slag Cement Replacement | |
% Portland Cement | |
% Portland Limestone Cement | |
% Other SCM (if applicable) | |
Aggregate | |
Water/cement ratio | |
7-day strengths | |
28-day strengths |
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It’s really interesting how they leaned on Sellen’s past experience with 80% slag cement to get those tilt-up panels right, especially since the lighter cured color became part of the design. Balancing that with the LEED Gold goal and the technical challenges sounds like a true team effort. By the way, I keep a free AI tool that previews what you'd look like bald I like to share. https://baldfade.net/what-would-i-look-like-bald