Skyway Slag Cement is 100% U.S. Sourced and Manufactured
World-Class Slag Cement Producer
The Skyway Cement Company manufactures slag cement in Chicago using 100% U.S.-sourced slag granules from Gary, Indiana. Skyway is a subsidiary of Eagle Materials Inc., the largest American-owned producer of portland cement.
Skyway’s manufacturing plant is a world-class facility, emphasizing safety, environmental excellence, product quality, and customer service. The plant began producing slag cement in 1991; Eagle Materials acquired Skyway in 2015. Skyway slag cement achieves its high quality and consistency through:
- A motivated, skilled and well-trained workforce;
- A single U.S. source for slag granules;
- A two-stage grinding process, including two roller presses and a 6,500 horsepower ball mill; and
- An in-house CCRL-certified quality control laboratory.
The plant can produce in excess of a half-million tons of Skyway slag cement per year.
Skyway Cement Company produces slag cement, which is a valued construction material due to its superior performance and environmental qualities. Skyway’s manufacturing facility is located in southeast Chicago near the Skyway Bridge.
Wide Distribution and Sales Network
From our base operations in Chicago, we distribute Skyway slag cement through Eagle’s network of cement subsidiary and partner terminals. The Skyway plant can ship by rail, barge and truck, and the plant’s terminal is open for customer pick-up 24/7.
Skyway delivers slag cement to 11 terminal locations, with sales in 18 states (and growing). Sales and terminal operations are through Eagle subsidiary companies, partners, or Skyway, depending on location. Visit our Sales/Distribution Network page to find sales representatives and terminal information for your location.
Skyway's Sales and Distribution Network Partners
Environment & Community
Utilization of Skyway slag cement in concrete not only lessens the burden on landfills, it also conserves a virgin manufactured product (portland cement), reduces air emissions at the blast furnace and, through the avoided manufacture of portland cement, decreases the amount of energy required to produce the cementitious materials in concrete.
Skyway slag cement requires nearly 90 percent less energy to produce than an equivalent amount of portland cement. Reducing the use of portland cement in concrete by substituting a portion of it with Skyway slag cement significantly reduces the total embodied energy in a cubic yard of concrete, since portland cement constitutes 70 percent or more of this energy.
Commitment to the Environment
Our commitment to a clean environment and safety is a job that we take very seriously. We operate under strict guidelines set by the U.S. EPA and the States we operate in. Our environmental program strives to go beyond just what is required. Our goal is to work hard every day to try to meet expectations for a clean, safe, and successful plant that our communities are proud of.
Commitment to the Community
Our ability to positively contribute to the community in which our employees work and live is another measure of our goal to be good neighbors. This is our home too. Providing good paying jobs, using local suppliers, contributing our share of local taxes, being actively involved in the community is part of our corporate responsibility.