Why put Rebar in Concrete?
Today concrete is probably the most widely used man made building material. Some concrete structures built during the Roman Empire still stand today. Concrete is strong and durable because it has a very high compression strength. But we all know that concrete can crack and break apart. That’s because concrete has a very weak tensile strength. Tensile strength is the force needed to pull something apart until it breaks. When steel rebar is added to concrete we now have a