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 17, 2015
When is a train station not a train station? When it’s a performance venue
You can catch a train at Minneapolis’s new Target Field Station. You can also share in an experience. That’s what ‘Open Transit’ is all about.
| Jan 16, 2015
Artsy lifeguard stations will brighten Toronto’s snowy beach
Five winning designs have been unveiled for lifeguard stands that will double as public space art installations on Toronto's beach.
| Jan 16, 2015
New York City construction costs continue to climb
A study released by the New York Building Congress shows that construction costs in Manhattan have risen 5% in each of the last two years.
| Jan 15, 2015
A reconstructed Taliesin West is the largest Frank Lloyd Wright LEGO Model [slideshow]
Artist Adam Reed Tucker used 180,000 LEGO pieces and 420 hours of work to recreate Frank Lloyd Wright's Taliesin West campus.
| Jan 15, 2015
Construction materials prices fall in November
Construction input prices dipped 1.4% during the final month of 2014 and are down nearly 1% on a year-over-year basis, according to the Jan. 15 producer price index release from the U.S. Department of Labor.
| Jan 15, 2015
Libeskind unveils 'zig zag' plan for recreational center near Vilnius ski area
Perched on the highest peak between Vilnius' historic quarter and downtown, the Vilnius Beacon will be a hub for visiting skiers and outdoor enthusiasts.
| Jan 14, 2015
10 change management practices that can ease workplace moves
No matter the level of complexity, workplace change can be a challenge for your client's employees. VOA's Angie Lee breaks down the process of moving offices as efficiently as possible, from creating a "change team" to hosting hard-hat tours.
| Jan 13, 2015
Steven Holl unveils design for $450 million redevelopment of Houston's Museum of Fine Arts
Holl designed the campus’ north side to be a pedestrian-centered cultural hub on a lively landscape with ample underground parking.
| Jan 9, 2015
Santiago Calatrava talks with BBC about St. Nicholas Church on Ground Zero
Calatrava reveals that he wanted to retain the “tiny home” feel of the original church building that was destroyed with the twin towers on 9/11.
| Jan 9, 2015
Nonresidential construction hiring surges in December 2014
The U.S. construction industry added 48,000 jobs in December, including 22,800 jobs in nonresidential construction, according to the Bureau of Labor Statistics preliminary estimate released Jan. 9.
