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
| May 3, 2013
Another edible city? Artist creates model city with chewing gum
French artist Jeremy Laffon pieced together a model city with thousands of sticks of mint-green chewing gum.
| May 2, 2013
First look: UC-Davis art museum by SO-IL and Bohlin Cywinski Jackson
The University of California, Davis has selected emerging New York-based practice SO-IL to design a new campus’ art museum, which is envisioned to be a “regional center of experimentation, participation and learning.”
| May 2, 2013
A snapshot of the world's amazing construction feats (in one flashy infographic)
From the Great Pyramids of Giza to the U.S. Interstate Highway System, this infographic outlines interesting facts about some of the world's most notable construction projects.
| May 2, 2013
Holl-designed Campbell Sports Center completed at Columbia
Steven Holl Architects celebrates the completion of the Campbell Sports Center, Columbia University’s new training and teaching facility.
| May 2, 2013
BIM group proposes uniform standards for how complete plans need to be
A nationwide group of Building Information Modeling users, known as the BIMForum, is seeking industry input on a proposed set of standards establishing how complete Building Information Models (BIMs) need to be for different stages of the design and construction process.
| May 2, 2013
New web community aims to revitalize abandoned buildings
Italian innovators Andrea Sesta and Daniela Galvani hope to create a worldwide database of abandoned facilities, ripe for redevelopment, with their [im]possible living internet community.
| May 1, 2013
A LEGO lover's dream: Guide to building the world's iconic structures with LEGO
A new book from LEGO master builder Warren Elsmore offers instructions for creating scale models of buildings and landmarks with LEGO.
| May 1, 2013
Data center construction remains healthy, but oversupply a concern
Facebook, Amazon, Microsoft, and Google are among the major tech companies investing heavily to build state-of-the-art data centers.
