Is the world really running out of sand? (practical.engineering)

Article summary

The article discusses the idea that the world is running out of sand, but argues that this is not the case. Sand is a crucial material in construction, particularly in concrete, and its availability is not as limited as often claimed. The article also explores the difference between natural and manufactured sand, and how the shape of sand grains affects the strength and workability of concrete. Additionally, the article touches on the environmental impacts of sand mining and the potential for using alternative materials.

Main themes

• Sand availability
• Construction materials
• Environmental impact
• Concrete production
• Manufactured sand
• Natural resources

What commenters say

• The phrase 'bury the lede' is often misused and its origins are rooted in the history of journalism and typesetting.
• The idea that desert sand is not suitable for construction is a myth with no scientific basis.
• The global supply chain for ultra-pure quartz sand, used in semiconductor production, is vulnerable to disruptions due to its reliance on a single source.
• The use of 'lede' instead of 'lead' is a valuable distinction that preserves the history and practice of journalism.
• The shape of sand grains affects the strength and workability of concrete, but this is not the only factor to consider in construction.
• The article's findings on manufactured sand challenge common assumptions about the suitability of different types of sand for construction.
• The availability of sand is not a significant concern, as it can be manufactured and alternative materials can be used.
• The discussion around sand availability and construction highlights the importance of considering the environmental and economic impacts of resource extraction and use.