Sanford Dam Auxiliary Spillway
Location: Sanford, Michigan
Award: Innovative Applications
Project Team
Owner: Four Lakes Association
Concrete and Contractor: Fisher Contracting Company
Engineer: GEI Consultants
Slag Cement: St Marys Cement
Located in Sanford, Michigan, the Sanford Dam Auxiliary Spillway is a massive renovation project that utilized Roller Compacted Concrete to meet a demanding construction schedule. The 1,200-foot-long structure was built with a series of steps reaching 24 feet high, requiring the placement of approximately 18,000 cubic yards of concrete in a remarkably short six-week window.
To manage the logistics of such a rapid, large-scale placement, the engineering team turned to a high-performance slag cement mix. With a total cementitious content of 350 pounds per cubic yard, the design utilized a 60 percent slag replacement. This high slag ratio was a mechanical necessity for this mass concrete application, as it effectively lowered the heat of hydration to keep core and surface temperature differentials well within the project's strict specifications.
The inclusion of slag cement also ensured the mix met the required 24-hour initial set time, allowing for the unique speed and layering process inherent to roller compacted concrete. Even with a low total cementitious content, the slag-integrated system provided sufficient strength development to ensure a durable and resilient spillway.
By combining the efficiency of roller compacted concrete with the thermal control of slag cement, the Sanford Dam project was completed on time and to the highest engineering standards, proving that sustainability and high-speed construction can go hand in hand.
Application Type
Application Type | |
% Slag Cement Replacement | 60% |
% Portland Cement | |
% Portland Limestone Cement | 40% |
% Other SCM (if applicable) | |
Aggregate | 100% crushed limestone |
Water/cement ratio | 0.52 |
7-day strengths | 3200 PSI |
28-day strengths | 4500 PSI (3500 PSI F’c) |
Чимало корисної інформації можна знайти на сторінці блогу. Публікації розраховані на широке коло читачів і охоплюють теми, які можуть бути актуальними у різних ситуаціях.
Great write-up — the 60% slag replacement for thermal control in RCC makes a lot of sense, especially with that 24-hour set time constraint. I'm curious though: with the 1,200-foot length and that six-week window, how did the crew handle temperature monitoring between lifts? Also, a quick meta question for anyone digging into material specs like this — I've seen some surprisingly detailed breakdowns of mix design on the sword of convallaria wiki of all places, so this project came as a nice contrast. Either way, impressive pace regardless of scale.
That's an impressive feat of engineering, using Roller Compacted Concrete to build such a massive structure in just six weeks. It's fascinating to see how slag cement can play a crucial role in large-scale construction projects like Scritchy Scratchy mentioned in their coverage of the Sanford Dam Auxiliary Spillway.
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