ELI5: Explain Like I'm 5

Metakaolin

Okay kiddo, have you ever had a mud pie? You mix dirt and water together to make a squishy mixture that you can bake in the sun. Well, metakaolin is kind of like that, but it's made in a big factory instead of in your backyard.

Metakaolin is a type of powder that is made by taking a special kind of clay called kaolin and heating it up really, really hot. This makes the clay change into a new material called metakaolin.

People use metakaolin for lots of different things, like making concrete stronger and more durable. Remember when we learned about concrete, how it's made from cement, sand, and gravel? Well, sometimes people add metakaolin to the mix to make it even better.

Metakaolin makes the concrete harder and more resistant to things like cracks and water damage. It also helps the concrete last longer without breaking down.

So even though metakaolin is a big, grown-up word, it's really just a fancy dirt that can help make buildings stronger and safer.