Through Granite City Slag, we provide slag aggregate tailored to roadwork and industrial needs. Count on us for quality material and reliable service every time.
Granite City Slag (GCS) takes pride in offering dependable slag solutions that keep your projects on track. Whether you’re maintaining roads or preparing a commercial surface, our air-cooled blast furnace slag is ready when and where you need it. Sourced locally, our slag and chip seal rock meet the performance needs of contractors, municipalities, and project managers. With multiple plants and a deep understanding of logistics, we help you get your job done with the right materials.
All our slag and steel byproducts are sourced from our dedicated Granite City Slag Plant. This facility allows us to offer a consistent, high-quality supply of material for a wide range of applications. Among our most in-demand options are our 5/8″ chips, available in varying grades and textures. These slag chips are engineered to perform under pressure on pavement or in challenging weather.
PSA: Supply may vary, so we always recommend calling ahead to confirm availability before pickup.
If you need slag delivered to your site or job location, we’ll make it happen. Contact GCS through CQC today and let our team handle the heavy lifting.
Our slag isn’t just a byproduct; it’s a smart solution for road systems and surfaces that need durability and grip. Our customers across Illinois and Missouri have numerous application uses for this quality material.
Select Materials Midwest
Perryville
521 Quarry Lane
Perryville, MO 63775
Columbia Quarry Company
Columbia
1501 Quarry Rd.
Columbia, IL 62236
Columbia Quarry Company
Dupo
100 Industrial Dr.
Dupo, IL 62240
Columbia Quarry Company
Waterloo
5440 Quarry Dr.
Waterloo, IL 62298
Granite City Slag
Granite City
2000 Edwardsville Rd.
Granite City, IL
Columbia Quarry Co., Granite City Slag, and Select Materials Midwest operate multiple plants conveniently located throughout southern Illinois and eastern Missouri. Our sites are positioned near major interstates, which makes both pickup and delivery efficient, saving you time and keeping your jobsite on schedule. Whether in a rural area or a growing metro, we can help coordinate the closest and quickest solution for your needs.
How is GCS’s slag different from other materials?
Our slag is an air-cooled blast furnace product sourced directly from our Granite City plant. It offers durability and traction while helping reduce environmental waste. It’s processed for consistency and is ideal for high-performance surface applications.
Can I schedule recurring slag pickup for an ongoing project?
Yes! GCS supports long-term and phased project schedules with recurring slag orders and pickups. We’ll work with your timeline to ensure the right amount of material arrives when you need it. No delays, no guesswork.
Is your slag environmentally-friendly?
Slag is a sustainable choice. GCS repurposes byproducts from steel production, reducing landfill waste while providing durable, recycled construction material. It’s a smart option for eco-conscious builders and public work departments.
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