What is the second most used substance on Earth after water?
Concrete is the second most used substance on Earth, surpassed only by water. It remains the most manufactured material in human history and forms the backbone of modern civilization.
Common questions about Concrete
Short answers, pulled from the story.
When was Portland cement patented by Joseph Aspdin?
A method for producing Portland cement was patented by Joseph Aspdin in 1824. His son William continued developments into the 1840s, earning him recognition for the development of modern Portland cement.
What is the difference between concrete and mortar?
Concrete is a building material that contains both coarse and fine aggregate particles. Mortar contains only fine aggregates and is mainly used as a bonding agent to hold bricks, tiles and other masonry units together.
When did the Romans use concrete extensively?
The Romans used concrete extensively from 300 BC to 476 AD. Roman concrete or opus caementicium was made from quicklime, pozzolana and an aggregate of pumice.
When was reinforced concrete invented?
Reinforced concrete was invented in 1849 by Joseph Monier. The first reinforced concrete house was built by François Coignet in 1853.
When did Eugène Freyssinet patent the technique for prestressed concrete?
Eugène Freyssinet patented the technique for prestressed concrete on the 2nd of October 1928. This method involves compressing concrete components or structures by tendon cables during or after their fabrication.