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
| Oct 13, 2010
Maryland replacement hospital expands care, changes name
The new $120 million Meritus Regional Medical Center in Hagerstown, Md., has 267 beds, 17 operating rooms with high-resolution video screens, a special care level II nursery, and an emergency room with 53 treatment rooms, two trauma rooms, and two cardiac rooms.
| Oct 13, 2010
Campus building gives students a taste of the business world
William R. Hough Hall is the new home of the Warrington College of Business Administration at the University of Florida in Gainesville. The $17.6 million, 70,000-sf building gives students access to the latest technology, including a lab that simulates the stock exchange.
| Oct 13, 2010
Science building supports enrollment increases
The new Kluge-Moses Science Building at Piedmont Virginia Community College, in Charlottesville, is part of a campus update designed and managed by the Lukmire Partnership. The 34,000-sf building is designed to be both a focal point of the college and a recruitment mechanism to get more students enrolling in healthcare programs.
| Oct 13, 2010
Cancer hospital plans fifth treatment center
Construction is set to start in December on the new Cancer Treatment Centers of America’s $55 million hospital in Newnan, Ga. The 225,000-sf facility will have 25 universal inpatient beds, two linear accelerator vaults, an HDR/Brachy therapy vault, and a radiology and imaging unit.
| Oct 13, 2010
Apartment complex will offer affordable green housing
Urban Housing Communities, KTGY Group, and the City of Big Bear Lake (Calif.) Improvement Agency are collaborating on The Crossings at Big Bear Lake, the first apartment complex in the city to offer residents affordable, eco-friendly homes. KTGY designed 28 two-bedroom, two-story townhomes and 14 three-bedroom, single-story flats, averaging 1,100 sf each.
| Oct 13, 2010
Residences bring students, faculty together in the Middle East
A new residence complex is in design for United Arab Emirates University in Al Ain, UAE, near Abu Dhabi. Plans for the 120-acre mixed-use development include 710 clustered townhomes and apartments for students and faculty and common areas for community activities.
| Oct 13, 2010
HQ renovations aim for modern look
Gerner Kronick + Valcarcel Architects’ renovations to the Commonwealth Bank of Australia’s New York City headquarters will feature a reworked reception lobby with back-painted glass, silk-screened logos, and a video wall.
| Oct 13, 2010
New health center to focus on education and awareness
Construction is getting pumped up at the new Anschutz Health and Wellness Center at the University of Colorado, Denver. The four-story, 94,000-sf building will focus on healthy lifestyles and disease prevention.
| Oct 13, 2010
Community center under way in NYC seeks LEED Platinum
A curving, 550-foot-long glass arcade dubbed the “Wall of Light” is the standout architectural and sustainable feature of the Battery Park City Community Center, a 60,000-sf complex located in a two-tower residential Lower Manhattan complex. Hanrahan Meyers Architects designed the glass arcade to act as a passive energy system, bringing natural light into all interior spaces.
| Oct 13, 2010
Community college plans new campus building
Construction is moving along on Hudson County Community College’s North Hudson Campus Center in Union City, N.J. The seven-story, 92,000-sf building will be the first higher education facility in the city.
