Style and Sustainability of Precast Concrete
New Perot Museum is both aesthetically intriguing and efficient
This course is no longer active
While it's understandable that in 2009 The Dallas Morning News described the Perot Museum of Nature and Science as “possibly the boldest piece of modern architecture ever proposed for Dallas,” the reaction from peer architects may be even more revealing. One, a juror for Architectural Record's 2012 Advertising Excellence Awards, reportedly commented upon seeing an image of the museum's precast concrete exterior, “I didn't know you could do this with concrete.”
Quantifying Precast Cost Savings |
Was the choice of the Perot Museum’s façade cladding a way to save money up front, or long-term? Both, argue the museum’s operators, pointing to the following ways to quantify the cost savings realized through the use of precast concrete:
- The sand, aggregate, water, and cement used in the panels were sourced locally and the panels were poured within 500 miles of the building site.
- Precast concrete is extremely durable which will maintain its appearance overtime without utilizing precious resources such as water and power to clean and maintain it.
- Because precast concrete is factory-made, there is little waste created in the plant and it reduces construction waste and debris on site.
- The light color of the precast concrete helps reduce the heat island effect on the surrounding microclimate as well as human and wildlife habitat.
- The panels did not receive any post finishing such as acid etching or sand blasting.
- Precast concrete does not off-gas nor does it need to be sealed or painted.
- The efficient erection process reduces the use of energy and materials that are typically required for other façade types.
- As with all concrete, precast components can be recycled or down-cycled. Down-cycled building materials are easily broken down, because it comes apart with a minimum amount of energy and retains its original qualities. An example of down-cycling would be the use of crushed precast concrete as aggregate in new concrete or as base materials for roads, sidewalks, or concrete slabs.
Sources: Morphosis Architects and Good, Fulton & Farrell, on behalf of the Perot Museum of Nature & Science.
|
|
Customers have relied on Holcim for approximately a century to help them design and build better communities. Today, Holcim is one of the world’s leading suppliers of sustainably manufactured cementitious materials. The Holcim Awards for Sustainable Construction promote and support the timely solutions of architects for a better future and built environment. www.holcimawards.org |
Originally published in Architectural Record
Originally published in November 2012