High-tech cement for Extreme Tasks

The cement hockey puck lab allows our students to see how changes in the composition of the cement and additives to the puck construction can make large changes in the strength of the final product.

This video takes that idea further, visiting the lab of a German chemist who is exploring additives to make cement retain water, cure more slowly, flow more easily, and resist chemical degradation from carbon dioxide.

Plus we get to see some really high- and low-tech testing of the cement mixtures. I particularly enjoyed the cone test at 3:20. That's science.