Every year, since 2004, the Slag Cement Association has honored exemplary projects utilizing slag cement in innovative ways.  These projects represent the best state-of-practice examples of slag cement use in areas such as strength, durability, sustainability and beauty.  Each project listed below is linked to a full article describing the application. 

If you are interested in submitting a project for consideration, you can  download a form.  2009 project award winners will be notified by September 2009 (the submission deadline in July 2009)

Wal-Mart Expiremental Stores (McKinney, TX and Aurora, CO):  2006 Best Use of Slag Cement for Sustainable Construction

The leader in big box retail development is now aiming to take the retail lead in sustainable design and green building. In 2005, Wal-Mart Stores Inc. opened two environmentally experimental stores, one in McKinney, Texas, and another in Aurora, Colo.  Slag cement, was one of more than 60 environmentally friendly materials used in building the stores. (more...)

7 World Trade Center (Manhattan): 2006 Best Use of Slag Cement for Strength The new 7 World Trade Center (WTC) building in New York City is a notable structure in many ways. The 741-foot high structure, completed in mid-2006, is the first major building to be built in lower Manhattan’s financial district since the attacks of Sept 11, 2001. The new steel structure rises above a concrete core that required a strength of 10,000 psi. The concrete mixture containing 40 percent slag cement provided the strength the designers were seeking without inordinately increasing the total amount of cementitious materials required in the mixture.  (more...)

Georgia Aquarium (Atlanta): 2006 Best Use of Slag Cement for Beauty
It’s big. It’s beautiful and full of life. That’s Atlanta’s Georgia Aquarium, a 550,000 square foot structure of engineering genius filled with some of nature’s most fascinating creatures and a good deal of slag cement.  Slag cement was used in the structure's self-consolidating concrete to help it flow easily into tight spaces and achieve over 8,000 psi strength.  Additionally, slag cement provided exceptional durability for the concrete exposed to the highly corrosive marine environments. (more...)

Detroit Metro Airport Northwest Airlines Terminal Expansion:  2006 Best Use of Slag Cement for Durability
The McNamara Terminal/Northwest World Gateway handles 80,000 passengers each day. The main Concourse A, where 64 of the 97 gates are located, consists of two, long wings laid end-to-end to create a nearly one-mile-long expanse of domestic and international jet gates.  The exterior portion of this expansion for Northwest Airlines included the use of slag cement in 80,000 square yards of concrete pavement, from 9 to 17 inches thick.  Slag cement was the material of choice to mitigate alkali-silica reaction, where reactive aggregates are a pervasive problem in Southeastern Michigan.  (more...)

 

Kilbourn Tower (Milwaukee): 2005 Best Use of Slag Cement in Construction - Commercial

This 34-story residential high-rise, overlooking Lake Michigan, utilized performance concrete made with ternary mixtures (containing portland cement, slag cement and fly ash) in virtually all of the concrete in the building. Of particular note was the ternary concrete used for post-tensioning, where achieving high early strength was important to keep on a four-day post-tensioning cycle. (more...)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Delaware Route 1 (Eastern Shore): 2005 Best Use of Slag Cement in Construction - Transportation

For the past 15 years, Delaware Route 1, a new toll road leading eager vacationers to Delaware's popular beaches, has defeated alkali-silica reaction in this highway's pavements and structures through the use of slag cement in quantities up to 50 percent of cementitious material. Delaware DOT was an early adopter of this ASR mitigation strategy and has utilized it from the beginning of Route 1 construction, through its completion in 2004. The result has been high-durability, lower-maintenance pavements. (more...)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

We Energies Appleton, WI Manufactured Gas Plant Stabilization (Appleton, WI):  2005 Best Use of Slag Cement for Sustainable Development The site of We Energies' Appleton, WI Manufactured Gas Plant--which operated between 1867 and 1954--was in need of help, with contaminated soils requiring treatment. A 75%/25% slag cement/portland blend was used for in-situ stabilization operations to help turn this brownfield into a site where future recreation and development can take place. (more...)

 

 

Air Train JFK (New York): 2004 Best Use of Slag Cement in Construction Created by the Port Authority of New York & New Jersey, AirTrain JFK is a new transit system that links New York's John F. Kennedy International Airport with Long Island Rail Road trains, New York City Transit subways and local buses. Approximately 200,000 cu yd of concrete was used to create the system, which includes 482 cast-in-place columns with 20 and 30 percent slag cement replacement rates, and more than 5,000 precast, post-tensioned box-shaped segments incorporating 40 percent slag cement replacement. The elevated guideway portion, stretching more than eight miles in length, is the longest segmental precast bridge in the U.S. An estimated 30,000 people will use the system daily. (more...)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Clearview Elementary School (Hanover, PA): 2004 Best Use of Slag Cement for Sustainable Development Clearview Elementary School in Hanover, PA., is showing how slag cement makes the grade in institutional construction. Built with concrete, the school is designed to consume one-third less energy than a conventional structure, providing substantial cost savings that can be redirected for educational purposes. This LEED™-Gold Certified project utilized insulating concrete forms with concrete mixtures that contained slag cement that replaced up to 60 percent of the portland cement in the mixtures. (more...)