How to pour homemade molds. If you opt to make your own mold, you’ll need to get your box and play sand. Fill the box with enough play sand to accommodate the tile and pack the sand down so that ...

Concrete is one of the world’s most important materials. But making the cement that binds it generates about 8% of anthropogenic carbon-dioxide emissions. This is not just because of the heat ...

One of those strategies is to create a concrete that “self-heals,” and in a new study, scientists used synthetic lichen to patch cracks autonomously (meaning that outside nutrients don’t need to be ...

Conventional concrete typically contains about 30% ordinary Portland cement paste by volume. Using less can make concrete harder to work with as it becomes stiffer.

When combined with concrete production, this figure is even higher. Rotta Loria foresees putting some of that CO 2 back into concrete and cement to make more sustainable materials for construction and ...

We’ve also seen other attempts to make concrete stronger, like using coffee in concrete to improve its resiliency. Don’t Miss: This portable wind turbine can charge your devices with a gentle ...