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
| Jan 9, 2012
METALCON International 2012 announced
METALCON 2012 is scheduled for Oct. 9-11 at the Donald E Stephens Convention Center, Hall A, Rosemont, Ill.
| Jan 9, 2012
Lutron appoints Pessina president
In his 35-year career with Lutron, Pessina has acquired broad experience in the engineering, quality assurance and manufacturing areas.
| Jan 9, 2012
A new journey for KSS Architects co-founder
Kehrt's legacy of projects include Rutgers University's Biomedical Engineering Building, the renovation and expansion of Cornell University School of Hotel Administration, the recent new campus center at The Richard Stockton College of New Jersey and Princeton Township's Municipal Complex.
| Jan 8, 2012
TCA releases The Construction of Tilt-Up
The newest publication from the TCA is the second in a planned trilogy of resources covering the architecture, engineering and construction of Tilt-Up
| Jan 8, 2012
WHR Architects promotes Joel Colwell, AIA, to principal
With over 30 years of experience, Colwell has managed large-scale, complex projects for major healthcare systems as well as challenging smaller renovations and additions — all with notable success.
| Jan 6, 2012
Doug Wignall named president of HDR Architecture
HDR Architecture, Inc. is known for its award-winning designs for urban environments, campuses and buildings in the healthcare, science and technology, civic, justice and higher education markets.
| Jan 6, 2012
Gensler unveils restoration and expansion of Houston's Julia Ideson building
The "new" building will serve as a repository of Houston memorabilia and rare archival material as well as the city's official reception space and a venue for exhibits, meetings and other special events.
| Jan 6, 2012
New Walgreen's represents an architectural departure
The structure's exterior is a major departure from the corporate image of a traditional Walgreens design.
| Jan 6, 2012
Summit Design+Build completes Park Place in Illinois
Summit was responsible for the complete gut and renovation of the former auto repair shop which required the partial demolition of the existing building, while maintaining the integrity of the original 100 year-old structure, and significant re-grading and landscaping of the site.
| Jan 4, 2012
Siemens acquires Pace Global Energy Services
Acquisition will enhance portfolio with new energy consulting and management services.
