Was the ancient Roman’s ability to build strong, durable concrete structures the secret behind the success of the Roman Empire? Mark Alexander, Professor of Civil Engineering at the University of Cape Town reflects on the recipe that made Roman buildings last for almost 2000 years. Was their concrete better than ours today and what present-day structures will stand the test of time?
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[The secret of lasting concrete? [construction]]
[http://youtu.be/gVctbigoq0s]
