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
Contractors | Oct 26, 2018
Three ways construction leaders harness digital transformation
The construction industry is lagging behind others when it comes to digital transformation. Some construction firms “are still using paper-based processes that can only be described as archaic,” according to a 2016 report by PricewaterhouseCoopers LLP’s Strategy1.
Contractors | Oct 24, 2018
How seasoned construction pros handle the cost of scaling up
Here’s how seasoned operators meet the new demand for homes, offices and new locations without drowning in new expenses.
Contractors | Oct 2, 2018
Nonresidential spending reaches new high in August
Total nonresidential spending stood at $762.7 billion in August, an increase of 8.4% compared to one year ago.
Contractors | Oct 2, 2018
Katerra adds a Denver-area GC to its growing stable
Bristlecone Construction brings self-performing expertise in concrete and framing.
Architects | Sep 14, 2018
We’ve entered the golden age of brain science. What does it mean for AEC firms?
New research from the SMPS Foundation explores the known principles and most recent research surrounding the human brain and behavioral science. The goal: to discover connections between the science and the AEC business.
Contractors | Sep 5, 2018
Lean, tech, talent training highlight contractor innovations
From 5D estimating tools to interactive punch lists, the nation’s largest construction and construction management firms continue to push technology to gain an edge.
Modular Building | Aug 6, 2018
More contractors are turning to offsite production for speed and quality
Skender launches an advanced manufacturing division. Katerra ups its bet on modular. Prefabrication comes to the rescue on multiple projects.
Architects | Aug 1, 2018
Client experience as competitive advantage for AEC firms
Clients are looking for solutions to their business problems from collaborative advisors. They’ve come to expect a higher level of service and detail than what was provided in the past.
Codes and Standards | Jul 31, 2018
Workers allegedly held in captivity by construction subcontractor in San Jose pay theft case
Contractor pays $250,000 in back wages in Dept. of Labor enforcement action.
Building Team | Jul 30, 2018
Construction tech is the new investment darling for VC funds
In the first half of 2018, venture capital firms invested $1.05 billion in global construction tech startups, setting a record high.