As if it wasn’t enough to have lumber, windows, doors, and metal pipe in short supply, you can add sand, which is theoretically plentiful on Earth, to the list of construction materials that can be hard to come by.
While sand is an item that can be found all over the planet, the high-quality aggregate form isn’t easy to source, according to a Stanford University scientist. “The sand found in deserts is unsuitable as construction material because it has been eroded by wind, making its sand grains smooth and they do not bond well together,” says Eric Lambin. “That is why the tall buildings of Dubai, a desert city, were built with sand imported all the way from Australia—as skyscrapers require extremely high-quality aggregates.
“Once high-quality deposits become exhausted or inaccessible due to urban growth, nature protection, or farming, sand extraction shifts to low-quality materials with organic matter or salt that, when used for the wrong applications, increase the probability of construction failure and building collapse. Construction failures have been linked to poor sand quality in Haiti following the earthquake, Nigeria, Morocco, Thailand, South Africa, and Italy.”
It's unlikely that we will run out of sand, Lambin says, but regionally, scarcities of sand needed for construction do occur, driving up costs and potentially delaying projects due to limited availability. “Instead of mining unconsolidated sediment deposits, fine-grained sand and coarser products can be produced artificially by crushing rocks or by recycling construction and demolition waste such as concrete or masonry,” Landin says. Engineered timber is also an alternative to concrete construction.
Related Stories
| Jun 4, 2013
Notification reinvented: SimplexGrinnell introduces revolutionary family of intelligent notification appliances
Simplex TrueAlert ES uses addressable technology to improve protection, simplify installation and reduce operating costs.
| Jun 3, 2013
6 residential projects named 'best in housing design' by AIA
The Via Verde mixed-use development in Bronx, N.Y., and a student housing complex in Seattle are among the winners of AIA's 2013 Housing Awards.
| Jun 3, 2013
Trifecta of awards recognize Vision/Rubenstein campus, Bayer Healthcare HQ
When Vision Equities, LLC and Rubenstein Partners purchased the 200-acre former Alcatel-Lucent campus in Whippany a little more than two years ago, the partnership recognized the property’s potential to serve as a benchmark infill revitalization for the State of New Jersey.
| May 31, 2013
Nation's first retrofitted zero-energy building opens in California
The new training facility for IBEW/NECA is the first commercial building retrofit designed to meet the U.S. Department of Energy’s requirements for a net-zero energy building.
| May 30, 2013
The Make It Right squabble: ‘How many trees did you plant today?’
A debate has been raging in the blogosphere over the last few months about an article in The New Republic, “If You Build It, They Might Not Come,” in which staff writer Lydia DePillis took Brad Pitt’s Make It Right Foundation to task for botching its effort to revitalize the Lower Ninth Ward of New Orleans.
| May 29, 2013
Realtors report positive trends in commercial real estate market
Realtors who practice commercial real estate have reported an increase in annual gross income for the third year in a row, signaling the market is on the road to recovery.
| May 28, 2013
LED lighting's risks and rewards
LED lighting technology provides unique advantages, but it’s also important to understand its limitations for optimized application.
| May 28, 2013
Minneapolis transit hub will double as cultural center [slideshow]
The Building Team for the Interchange project in downtown Minneapolis is employing the principles of "open transit" design to create a station that is one part transit, one part cultural icon.
| May 24, 2013
First look: Revised plan for Amazon's Seattle HQ and 'biodome'
NBBJ has released renderings of a revised plan for Amazon's new three-block headquarters in Seattle. The proposal would replace a previously approved six-story office building with a three-unit "biodome."