Testing, Implementation of Low-Carbon ASTM C1157 Slag Cement Mix, AWS, New Carlisle, IN
- Apr 8, 2025
- 1 min read
Location: New Carlisle, Indiana
Award: Innovative Applications
Project Team
Owner: Amazon Web Services
Contractor: Clayco
Engineers: S.A. Miro, Inc., and Wiss, Janney, Elstner Associates, Inc.
Architect: Gensler
Concrete: Concrete Strategies
Slag Cement: Ozinga
A recently completed data center campus in Indiana was constructed using ASTM C1157/C1157M compliant cements comprising high percentages of slag cement. Building on ambitious carbon reduction goals set by the owner, an extensive testing effort was executed at Clayco/Concrete Strategies’ test yard in St. Louis, MO, USA. Three full-height tilt-up panels with varying levels of carbon reduction were cast and erected.
As a result of the testing program, the project’s foundation was constructed using a concrete mixture with a global warming potential (GWP) of 103 kgCO2e/yd3, an impressive 60% below the NRMCA V3 2020 Great Lakes Midwest Regional benchmark. Additional mixtures used on site incorporated ASTM C1157/C1157M compliant cements with slag cement contents ranging from 10 to 40% by mass.
Application Type
Application Type | Shallow foundations |
% Slag Cement Replacement | 70%+ |
% Portland Cement | |
% Portland Limestone Cement | 15% +/- |
% Other SCM (if applicable) | 15% +/- |
Aggregate | |
Water/cement ratio | 0.40 +/- 0.05 |
7-day strengths | |
28-day strengths | 4,500 psi |
While reviewing these low-carbon mix specs, it reminds me of how we simulate infrastructure impacts. We're currently leveraging mii creator to visualize site-team operations for our green building models. Exceptional work by the SCA team!
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This is fascinating! How do you see low-carbon slag cement impacting future construction practices? cookie clicker Could it shift industry standards towards more sustainable methods overall? Would love to hear your thoughts!
This post on low-carbon ASTM C1157 slag cement is fascinating! red ball I’m curious, what challenges did you encounter during implementation? Also, how do you think this approach can impact future construction practices?
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