How Did Roman Concrete

In Ancient Rome, the Romans were fabulous engineers. They have built several great things. Some of them of the great things that they have built include; concrete, roads and arches. With these inventions and several more, the Romans have changed the art of buildings for ever. Without it the world would not be the same, and it would affect our world forever. One of the first inventions that the Romans made, was concrete. Concrete was used to be made as a glue like substance for building structures. The Roman concrete was made of lime, seawater and volcanic ash. According to the Article, Building materials and Techniques, on page one and paragraph five, it states that “Sometime in the third century B.C., Roman builders discovered that adding a special kind of of sand to lime, in a ratio of two or
Moreover, this new kind of mortar hardened under water, which made it ideal for building bridges over rivers. Found near Mount Vesuvius and other volcanoes, the sand in question was actually volcanic ash laid down in prehistoric eruptions.” This quote explain how concrete was made to be. It explains that concrete was actually made of volcanic ash that had helped out alot when bridges were built under water. Another piece of evidence comes from Wikipedia, page one paragraph four, it states that