These two articles show what scientists at the University of Arizona and the University of Utah are doing with one “low tech” material:  Concrete.   There’s more to it than you might think.

Inventor Jinhong Zhang, associate professor of mining and geological engineering in the University of Arizona’s College of Engineering, has developed a new substitute for concrete that has a number of advantages over traditional Portland cement.

Source: Concrete Substitute, a UA Startup, Brings Advantages

Modern marine concrete structures crumble within decades, but 2,000-year-old Roman piers and breakwaters endure, and many are stronger than when they were first constructed.


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