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
AEC Tech | Mar 4, 2021
The Weekly show, March 4, 2021: Bringing AI to the masses, and Central Station Memphis hotel
This week on The Weekly show, BD+C editors speak with AEC industry leaders about the award-winning Central Station Memphis hotel reconstruction project, and how Autodesk aims to bring generative design and AI tools to the AEC masses.
Contractors | Mar 3, 2021
ABC launches construction Technology Marketplace to grow contractor members’ innovative initiatives
Consisting of 14 companies, the Tech Marketplace will be the premier source for ABC members to find technological construction solutions.
Market Data | Feb 24, 2021
2021 won’t be a growth year for construction spending, says latest JLL forecast
Predicts second-half improvement toward normalization next year.
Contractors | Feb 19, 2021
New immigration bill protects the legal status of more than 100,000 people in Dreamers and TPS programs who work in construction
Offering undocumented immigrants a path to legal status will put an end to unfair competition and labor exploitation, but bill fails to create a construction worker visa program, has other flaws.
Healthcare Facilities | Feb 18, 2021
The Weekly show, Feb 18, 2021: What patients want from healthcare facilities, and Post-COVID retail trends
This week on The Weekly show, BD+C editors speak with AEC industry leaders from JLL and Landini Associates about what patients want from healthcare facilities, based on JLL's recent survey of 4,015 patients, and making online sales work for a retail sector recovery.
Multifamily Housing | Feb 10, 2021
The Weekly show, Feb 11, 2021: Advances in fire protection engineering, and installing EV ports in multifamily housing
This week on The Weekly show, BD+C editors speak with AEC industry leaders from Bozzuto Management Company and Goldman Copeland about advice on installing EV ports in multifamily housing, and advances in fire protection engineering.
Healthcare Facilities | Feb 5, 2021
Healthcare design in a post-COVID world
COVID-19’s spread exposed cracks in the healthcare sector, but also opportunities in this sector for AEC firms.
Building Owners | Feb 4, 2021
The Weekly show, Feb 4, 2021: The rise of healthy buildings and human performance
This week on The Weekly show, BD+C editors speak with AEC industry leaders from Brookfield Properties, NBBJ, and UL about healthy buildings certification and improving human performance through research-based design.
AEC Tech | Jan 28, 2021
The Weekly show, Jan 28, 2021: Generative design tools for feasibility studies, and landscape design trends in the built environment
This week on The Weekly show, BD+C editors speak with AEC industry leaders from Studio-MLA and TestFit about landscape design trends in the built environment, and how AEC teams and real estate developers can improve real estate feasibility studies with real-time generative design.
