KPMB’s Ductal facade in Toronto
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Rotman School makes the most of high-performance concrete and glass
The University of Toronto Rotman School of Management’s nearly $100 million expansion project will more than double the size of the business school. A new 161,000-square-foot building designed by Toronto-based KPMB Architects mediates between its neighbors—a historic 19th century brick home on one side and the towering Brutalist Robarts Library on the other—while maintaining views to the medieval Oxbridge-style Massey College to the east. The architect’s solution to the architectural mixture is an elevated box made with floor-to-ceiling glazing punctuated by slivers of Ductal, a patented ultra-high performance concrete made by Lafarge.
Gehry’s Louis Vuitton Foundation Facade
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Ductal concrete technology used for the architect’s shapely “icebergs” in Paris
Frank Gehry has referred to his design for the Louis Vuitton Foundation for Creation, a new home for the contemporary art collection of LVMH mogul Bernard Arnaud, as “a veritable ship amongst trees.” The project, located at the northern entrance of Paris’ Bois de Boulogne near the Jardin d’Acclimatation, hasn’t been without its share of controversy and delays, but the nearly 130,000-square-foot, 150-foot-tall building is moving ahead and is slated for completion in 2012. Though a hovering glass carapace will enshroud the museum, models of the design show the sails parting at various points to reveal concrete “icebergs” that form the building’s core. Since 2006, building material manufacturer Lafarge has been working with the building’s project team, prototype designer Cogitech Design, and precast concrete manufacturer Bonna Sabla to realize the design with Lafarge’s Ductal ultra-high performance concrete (UHPC).
Wilson Savastano Venezia′s Dukhan facade: TAKTL
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High-performance concrete creates new possibilities for a community college facade.
A new generation of concrete, called Ultra High Performance Concrete (UHPC), is changing the way architects and designers think about the material. Usually composed of cement, fine grain sand, silica fume, optimized admixture, and alkali-resistant glass fiber reinforcement, UHPC offers high ductility, strength, and durability with a fine surface appearance. A new UHPC product called TAKTL, launched last year, shows the many additional applications that are possible with the right material mix, including facade panels available through its sister company VECTR. Recently chosen by Milan-based Wilson Savastano Venezia Architecture Studio for its Dukhan Community College (DCC) project in Qatar, the company is in the research and development phase for perforated and solid panels to clad the school’s sculptural facade.
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