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
| Feb 26, 2014
Adaptive reuse project brings school into historic paper mill
The project features nontraditional classrooms for collaborative learning, an arts and music wing, and a technologically sophisticated global resource center.
| Feb 26, 2014
Startup PocketCake aims to bring virtual reality simulations to the AEC masses
Founded in 2012, the development firm offers custom virtual reality simulations for the price of a typical architectural illustration.
| Feb 26, 2014
Billie Jean King National Tennis Center serving up three-phase expansion
The project includes the construction of two new stadiums and a retractable roof over the existing Arthur Ashe Stadium.
| Feb 24, 2014
First look: UC San Diego opens net-zero biological research lab
The facility is intended to be "the most sustainable laboratory in the world," and incorporates natural ventilation, passive cooling, high-efficiency plumbing, and sustainably harvested wood.
| Feb 21, 2014
Naturally ventilated hospital planned in Singapore
The Ng Teng Fong General Hospital will take advantage of the region's prevailing breezes to cool the spaces.
| Feb 21, 2014
Calatrava ordered to pay millions for 'shortcomings in his work' on conference center project
Famed architect Santiago Calatrava must pay 2.9 million euros due to faulty design work on the Palacio de Congresos project in Oviedo, Spain.
| Feb 19, 2014
Why you should start with a builder, part two
When it’s time to build or expand, the first step is finding a builder that fits your needs. Once you have found a builder, checked their references, visited with their previous clients and are ready to move forward, the next step is answering an initial set of questions that will direct your project.
| Feb 19, 2014
Obama Administration moves to boost fuel efficiency standards on heavy-duty vehicles
The Obama Administration wants to boost fuel efficiency of medium- and heavy-duty trucks for models made in 2019 and later.
| Feb 19, 2014
Slight rebound for Architecture Billings Index
After consecutive months of contracting demand for design services, AIA's Architecture Billings Index inched up nearly two points to 50.4 in January, indicating favorable business conditions.
| Feb 19, 2014
Harvard's 'termite robots' can build any thing, any way [video]
The robots build by observing thier environment and then obeying a set of traffic rules programmed by researchers.