Location: Laramie, Wyoming
Award: Architectural
Project Team
Owner: University of Wyoming Contractor: Sampson Construction
Architect: By Architectural Means
Engineer: Walker Consultants
Concrete: Croell Inc. Concrete Mixture Design: CTL Thompson Inc. Slag Cement: Skyway Cement Company
Construction of the challenging project included winter conditions in Laramie, WY, USA. The concreting began in March 2022 and was completed in June of 2023. The parking structure slabs were all post-tensioned, and stressing times were based on maturity monitoring because the cold weather would make it difficult to ensure that field-cured concrete cylinders would maintain the same temperature as the slabs.
The concrete mixture design contained 35% slag cement with a 0.036 shrinkage limit.
A high amount of slag cement was used to meet the required average strength of 6000 psi (41 MPa). In addition, slag cement was selected to reduce the water demand and minimize the risk of delamination and cracking.
Application Type
% Slag Cement Replacement | 35% |
% Portland Cement | 65% |
% Portland Limestone Cement | |
% Other SCM (if applicable) | |
Aggregate | 1” Granite |
Water/cement ratio | .40 |
7-day strengths | 6200 psi |
28-day strengths | 7800 psi |
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