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Date 10/16/2012

Lafarge NewCem Slag Cement, Fly Ash, and True Lite Lightweight Aggregate Make Essential Contributions to KONE Centre’s Green Design

High-performance concrete containing post-industrial recycled materials provides significant sustainable construction benefits important for achieving LEED® Gold certification.

Reston, VA

Lafarge North America Inc.


The recently completed KONE Centre - featuring 125,000 square feet of office, restaurant, and retail space - is a showcase for sustainability along the Mississippi River in Moline, IL. The eight-story structure's sustainable design includes 1,365 solar panels, light-harvesting technology, locally sourced recycled and renewable construction materials, and a host of energy-efficient building components. In addition, the shape of the building follows the solar axis and takes advantage of natural daylight.


A spectacular addition to the city's riverfront when it officially opened in August, the multi-use facility was constructed with high-performance concrete containing Lafarge North America products: True Lite Lightweight AggregateTM and a blended cement that included Class C fly ash and NewCem® slag cement. These products, which are considered post-industrial recycled materials, made essential contributions to meeting the sustainable construction goals of the KONE Centre, which is expected to earn a LEED® Gold rating from the U.S. Green Building Council.


The use of supplementary cementitious materials, such as fly ash and slag cement, as a partial replacement for portland cement can help designers and builders recycle industrial by-products, achieve higher performance from concrete mixtures, and earn points toward LEED certification of their projects. These blended cements have many properties that contribute to sustainable design-they produce stronger, longer-lasting concrete, reduce the consumption of nonrenewable raw materials, consume less energy, and turn by-products from other industries into resources that would otherwise be disposed of in landfills. Fly ash is derived from burning coal in electric utility plants, and slag cement is produced from granulated blast furnace slag, a by-product of the iron-making process. 


Lafarge True Lite Lightweight Aggregate is also a recycled by-product of the iron production process.  Approximately 35 percent lighter than most natural aggregates, this expanded slag product conforms to the U.S. and Canadian governments' environmentally preferable purchasing programs and qualifies for points under many LEED credit categories. It offers excellent fire resistance, thermal insulating, and sound absorption capabilities and can help reduce heating and air-conditioning costs due to the capillary nature of the aggregate.



Dawn Stefano

Communications & Branding Manager, U.S. 
Ph: 703.480.6621

KONE Centre , NewCem


Lafarge North America Inc. ("Lafarge") has more than 270 industrial and distribution sites and 4,200 employees in 41 States in its US cement, aggregate, concrete and gypsum businesses. Lafarge is active in local environment, education and sustainable construction partnerships including the Wildlife Habitat Council, the World Wildlife Fund for Nature, Habitat for Humanity, the American Institute of Architecture Students and the National Building Museum.


Lafarge S.A., together with its subsidiaries (the "Lafarge Group" or the "Group"), is the world leader in building materials, with top-ranking positions in all of its businesses: Cement, Aggregates and Concrete. With 68,000 employees in 64 countries, the Group posted sales of 15.3 billion Euros in 2011. Lafarge North America Inc. and its subsidiaries, including Lafarge Canada Inc., are Lafarge Group companies, and together constitute the largest diversified supplier of construction materials in the United States and Canada. 


The Lafarge Group entered the global "Dow Jones Sustainability Index" in 2010 in recognition of its sustainable development actions. For the second year in a row, the Lafarge Group ranked amongst the top 10 of 500 companies evaluated by the "Carbon Disclosure Project" in recognition of the Group's strategy and actions against global warming. With the world's leading building materials research facility, the Lafarge Group places innovation at the heart of its priorities, working for sustainable construction and architectural creativity.


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