What's the most-used material on the planet? Wood? Steel? Plastic? Not even close. After water, the answer is concrete. Humanity makes so much of it that it's hard to wrap your head around the numbers.
According to researchers at the National Institute of Standards and Technology (NIST), concrete is the second most used substance in the world after water, and manufacturers produce about 14 billion cubic meters of it every year. Here's why the world runs on concrete, what that much concrete actually looks like, and what it means for the people who build with it.
Just How Much Concrete Is That?
Fourteen billion cubic meters is about 18 billion cubic yards. Some ways to picture it:
- With a world population of roughly 8 billion people, that's about 1.7 cubic meters (more than 2 cubic yards) of concrete per person, every year.
- A two-car driveway takes about 7 cubic yards. The world pours enough concrete for roughly 2.6 billion driveways a year.
- The Hoover Dam holds about 3.25 million cubic yards of concrete. Global production equals more than 5,000 Hoover Dams every year.
And the U.S. is a big part of it. The National Ready Mixed Concrete Association estimates U.S. ready-mix production at roughly 379 million cubic yards in 2024. That's around 38 million truckloads.
The Cement Behind It
Concrete is mostly sand, gravel, and crushed stone held together by cement paste. Cement is a relatively small share of each batch by volume, but because so much concrete is made, cement production is enormous too.
The U.S. Geological Survey estimates world cement production at about 3.8 billion metric tons in 2025. The top producers:
- China: about 1.7 billion metric tons
- India: about 470 million
- Vietnam: about 100 million
- Turkey: about 89 million
- United States: about 84 million
China alone makes close to half of the world's cement, a reflection of the massive building boom in its cities and infrastructure over the past few decades.
Why the World Runs on Concrete
Concrete isn't the strongest, lightest, or prettiest material available. It wins because it does a lot of things well, almost anywhere, at a reasonable price.
1. The ingredients are everywhere
Sand, gravel, crushed rock, water, and the limestone and clay used to make cement are found on every inhabited continent. Concrete can be made locally almost anywhere, which keeps transportation costs down.
2. It's affordable
Per unit of volume, concrete is one of the cheapest structural materials you can buy. That matters when you're building millions of homes, miles of roads, and entire cities.
3. It can take any shape
Concrete starts as a liquid. Pour it into a form and it becomes a foundation, a curved ramp, a column, a bridge deck, a stamped patio, or a 2,000-year-old dome. Few materials are that versatile.
4. It's strong in compression
Concrete handles enormous squeezing loads, which makes it ideal for foundations, columns, walls, and slabs. Add steel reinforcement and it can handle bending and tension too.
5. It doesn't burn, rot, or rust on its own
Concrete is fire-resistant, isn't eaten by insects, and doesn't rot. Those are huge advantages for homes, high-rises, and public buildings.
6. It lasts
Properly designed, placed, cured, and maintained concrete can serve for many decades. Some ancient Roman concrete has lasted nearly two thousand years. (Read about how in Why Roman Concrete Has Lasted 2,000 Years.)
Where All That Concrete Goes
Concrete is in almost every part of the built environment:
- Homes: foundations, basement walls, slabs, driveways, patios, walkways, pool decks, and steps
- Transportation: highways, bridges, tunnels, airport runways, and sidewalks
- Buildings: high-rise frames, floor slabs, parking garages, and precast panels
- Water infrastructure: dams, canals, pipes, and treatment plants
- Energy: power plants and wind turbine foundations
- Sports and entertainment: stadiums alone can use 100,000 to 150,000 cubic yards each (see How Much Concrete Does It Take to Build an NFL Stadium?)
The Environmental Side of the Story
Being the world's most-used building material comes with a big footprint. Making cement requires heating limestone to very high temperatures. That burns a lot of fuel, and the chemical reaction itself releases carbon dioxide. MIT researchers note that cement production accounts for roughly 8% of global greenhouse gas emissions.
The industry is working on several fronts to reduce that impact:
- Blended cements that replace part of the clinker with other materials
- Supplementary cementitious materials like fly ash, slag, and natural pozzolans
- Optimized mix designs that use only as much cement as needed
- Carbon capture and alternative fuels at cement plants
- Longer-lasting concrete, since every slab that lasts longer is one less replacement
The Most Sustainable Concrete Is the Concrete You Already Have
That last point deserves more attention. Every time a driveway, sidewalk, or pool deck is torn out and replaced, the old concrete has to be broken up and hauled away, and new cement has to be made, trucked, and poured.
A lot of concrete gets replaced not because it's structurally failing, but because it looks bad: stained, patched, weathered, or mismatched. For structurally sound concrete, repairing and restoring the surface can extend its life and avoid much of the waste and cost of replacement. (We break down that decision in Concrete Resurfacer vs. Replacement.)
Good maintenance helps too: sealing cracks, keeping water draining away, cleaning off oil and chemicals, and resealing on schedule all add years of service life.
Fun Facts About the World's Favorite Building Material
- The Romans built with concrete over 2,000 years ago, and the Pantheon's unreinforced concrete dome still stands in Rome.
- Portland cement got its name in the 1800s because the hardened material reminded its inventor of Portland stone, a popular building stone in England.
- Concrete gets stronger for a long time after it's poured, as cement continues to react with water. (See Is Concrete Ever Fully Cured?)
- "Cement" and "concrete" aren't the same thing. Cement is an ingredient; concrete is the finished product. (See Cement vs. Concrete.)
Quick Facts Recap
- Concrete is the second most-used substance in the world after water.
- About 14 billion cubic meters are produced every year, more than 2 cubic yards per person.
- World cement production is about 3.8 billion metric tons a year; China makes close to half.
- The U.S. produced about 379 million cubic yards of ready-mix in 2024.
- Cement production accounts for roughly 8% of global greenhouse gas emissions.
