By Robert M. Nordlund, PE, RS
Association Reserves, Inc.
It seems like much of our world is built on the foundation of concrete. Concrete is hard, easy to work with (just mix with water), strong under a heavy load, and lasts a long time. But it is brittle, subject to cracking, and weak when pulled. So what will they think of next? Look for two major advancements in the next few years: Self-healing concrete (when cracks open, they are exposed to air or moisture and immediately seal themselves), and bendable concrete. For more on both, see the following articles: