Why was the concrete made by the Romans more than 2,000 years ago stronger than the one used today?
Roman’s were lucky. Roman concrete is amazingly strong because of its chemistry. Modern-day concrete is typically made of ‘Portland cement’ that is then mixed with water and aggregate…
Why is steel extensively used with concrete?
Concrete is great in compression. You comfortably put 500 times the weight of the concrete on top of concrete with no problem. Unfortunately, concrete totally sucks when it…