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Cement and concrete have been used by humans for thousands of years. And for good reason — these materials are incredibly versatile, durable, and economical. When made correctly, concrete can be waterproof, stormproof, and fireproof, and it only gets stronger with time, which is why so many structures built with cement and/or concrete are still around today.
First things first — Before we proceed, you need to know the difference between concrete and cement.
Cement is a bonding material made from varying combinations of ingredients such as limestone, clay, shells, chalk, shale, slate, silica sand, and sometimes even slag or iron ore. Ingredients get crushed together, heated, mixed with gypsum, then crushed again. This mixture gets activated when you add water, and is used to bind things together.
Concrete is what is produced when you mix cement, water, and aggregate (typically sand and rocks) together. This creates a soupy liquid that can be poured into a mold to harden over time into a desired shape.
12 million years ago — Naturally occurring cement was formed in Israel after spontaneous combustion made limestone and oil shale react with each other, creating deposits of natural cement.
6500 BC — Underground desert cisterns are built by Nabataea or Bedouin traders to store water. Some of these cisterns are still around today.
5600 BC — Homes in the area of Yugoslavia are built with concrete floors.
3000 BC — Gypsum and lime are mixed to create an early form of cement used as mortar for the Egyptian pyramids.
3000 BC — The Northern Chinese use cement to build the Great Wall, boats, and other structures. Their cement includes glutinous rice.
1300 BC — Middle Eastern builders start coating their pounded-clay fortresses and homes with a paste of burned limestone to form a hard, protective coating.
700 BC — Nabataea or Bedouin traders have discovered hydraulic lime, cement that hardens underwater.
200 BC to 476 AD — Cement and concrete are used extensively by the Romans. They build the Colosseum and Pantheon, among other structures. They use animal products such as a milk, fat, and blood as admixtures to change the properties of the concrete.
1824 AD — Portland cement is invented by Joseph Aspdin of England. This type of cement is still used today.
1875 AD — The first reinforced concrete, fireproof home is built in the USA by William Ward. It is designed to resemble masonry for aesthetic reasons.
1889 AD — Alvord Lake Bridge is built in California, USA as the first reinforced concrete bridge.
1891 AD — George Bartholomew pours the first concrete street in the USA, which still exists today.
1902 AD — August Perret of France designs and builds an apartment building in Paris using steel-reinforced concrete.
1904 AD — The Ingalls Building is built in Cincinnati, Ohio as the first concrete high-rise building. It is 16 stories tall.
1913 AD — The first load of ready-mix concrete is delivered to Baltimore, Maryland, USA.
1915 AD — Colored concrete is developed by the company L.M. Scofield.
1921 AD — Parabolic-arched airship hangars are built
1928 AD — Eugène Freyssinet patents pre-stressed concrete.
1930 AD — Air entraining agents are introduced to concrete to resist damage from freezing and thawing.
1930 AD — Thin shell concrete begins to be used for roofing.
1935 AD — The Hoover Dam is completed, using roughly 4,360,000 cubic yards of concrete. Instead of being one big, slow-cooling pour, the dam is poured in columnar blocks that are cooled by water pipes.
1950 AD — Decorative concrete is developed and begins to be popularized.
1970 AD — Fiber reinforcement is introduced to strengthen concrete.
1999 AD — The Swedish company HTC introduces concrete polishing to the USA. It begins to be used for warehouses, retail locations, schools, offices, and homes.
2011 AD — The tallest reinforced concrete structure is built. The Burj Khalifa in Dubai, United Arab Emirates, stands 2,717 feet tall.
Humanity has had a long time to develop and perfect the art and science of using concrete in architecture, making it one of the best materials you can use for your project. Get in touch with Kelly Concrete Co. today to see what we can do for you !