Welcome to the Collaborative Revolution!
The excerpt below is from an interesting article that describes a break through in Nanotechnology that may significantly extend the life of concrete. From a sustainability and maintenance perspective this is great news.
"The use of concrete dates back to ancient Rome, and the recipe hasn't changed much since then. Neither have some of concrete's drawbacks. In particular, the slow deformation known as "concrete creep" has afflicted structures from the Pantheon to the Pentagon. But MIT scientists believe they have solved the mystery of concrete creep, and thus opened the door to structures that will last tens of thousands of years."
Read the whole thing!