Location: Montfort, Wisconsin
Award: Lower Carbon Concrete
Project Team
Owner: Allete Clean Energy
Future Owner: Wisconsin Public Service and Madison Gas & Electric Contractor: Wanzek Construction
Engineer: RRC Power & Energy, LLC
Civil Engineer: Westwood
Electrical Engineer: CEG Concrete: BARD Materials Slag Cement: Holcim
The Red Barn Wind Farm project in Monfort, WI, USA, is a 28-turbine, 14,500 yd3 (11,090 m3) concrete (55% slag cement replacement), 92 megawatt wind farm, which powers over 32,000 homes. The project offsets 270,000 tons (245,000 tonnes) of carbon.
Turbines were erected on foundations of 450 ft3 (13 m3) of concrete and 40 tons (36 tonnes) of reinforcing steel. The project employed 250 people during the construction and up to 10 people during operation.
Application Type
% Slag Cement Replacement | 55% |
% Portland Cement | |
% Portland Limestone Cement | 45% |
% Other SCM (if applicable) | |
Aggregate | 58% limestone coarse, 42% natural sand |
Water/cement ratio | .43 |
7-day strengths | 4560 psi |
28-day strengths | 7790 psi |
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