Location: Chicago, Illinois
Award: High Performance
Project Team
Owner: Logistics Property Company, LLC
Contractor: Walsh Construction
Architect: Ware Malcomb.
Engineer: DCI Engineers
Concrete: Prairie Materials
Slag Cement: St Marys Cement
Located in Chicago’s North Branch Industrial Corridor, Project Heat is a true architectural pioneer. As the first modern multi-level industrial warehouse in the Midwest, it brings a design typically seen in high-density global hubs like Singapore or Tokyo right to the heart of the Windy City. This 1.2 million square foot facility uses a stacked, two-story design to allow 53 foot long semi-trucks access to both floors, maximizing space on a compact 11-acre footprint near the Kennedy Expressway.
To bring this massive "spec" project to life, the team placed over 73,000 cubic yards of concrete across a wide variety of applications, from post-tensioned truck docks to slabs on metal decks. Slag cement was the supplementary material of choice for the stakeholders and investors, providing the high-performance durability and low permeability required for such a heavy-duty logistical hub.
The logistical benefits of slag cement were proven throughout the year-round construction cycle. Even during the challenging Chicago winter, the post-tensioned deck mixes consistently met the early strength requirements needed to keep the project on schedule. The long-term results were equally impressive: while the design called for 8,750 psi, the slag-integrated mixes consistently exceeded 9,500 psi.
Beyond its structural muscle, slag cement offered significant architectural and environmental advantages. Its signature lighter color provided a beautiful contrast to the building’s painted features, while its use alongside CarbonCure technology and high-strength reinforcement minimized the project’s overall carbon footprint. Already a winner of multiple industry impact awards, Project Heat stands as a landmark of sustainable, vertical innovation in American industrial construction.
Application Type | Post-Tensioned Deck Mix (mix 8750) | Various other mixes – slab on ground, slab on metal deck, sidewalks, footers, etc. County Materials also provided pre-cast walls (not included below) |
% Slag Cement Replacement | 12.5% slag (25% SCM total) | ~0 to 25% SCM |
% Portland Cement | ||
% Portland Limestone Cement | 75% St Marys Charlevoix PLC | ~75-85% typ. Minimal 100% PLC |
% Other SCM (if applicable) | 12.5% Oak Creek Class C Fly Ash Carbon Cure | Class C Ash, Silica Fume, Carbon Cure Lightweight slab on metal deck: 14% slag & 4% silica fume, 0.38 w/c. |
Aggregate | CM11 Limestone, FM20 Sand | |
Water/cement ratio | 0.27 | 0.27-0.45 |
7-day strengths | 3000 psi required @ 24 hr | Varied |
28-day strengths | 8750 @ 56 day | Varied |
此内容由惯性聚合(RSS阅读器)自动聚合整理，仅供阅读参考。 原文来自 — 版权归原作者所有。