The history of concrete

Here I presented a timeline of the invention and the use of concrete. Concrete-like materials were used since 6500 B.C. by the Nabataea traders, but the earliest large-scale users of concrete technology were the ancient Romans. During the Roman Empire, Roman concrete (or opus caementicium) was made from quicklime, pozzolana and an aggregate of pumice.
Massive improvements began with the 19th century, when Joseph Aspdin invented the modern Portland cement in 1824. In 1849 Joseph Monier invented the reinforced concrete. In 1930, air entraining agents were used for the first time in concrete to resist against damage from freezing and thawing. Last inovations include self-healing concrete and 3d printed concrete.
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Voice & editing: Nicolae Bondar (myself)
Music: Nevada City, by Huma-Huma, downloaded from CZcams Audio Library
Information Sources:
en.wikipedia.org/wiki/Concrete
en.wikipedia.org/wiki/Nabatae...
en.wikipedia.org/wiki/Roman_c...
en.wikipedia.org/wiki/Roman_a...
en.wikipedia.org/wiki/Joseph_...
en.wikipedia.org/wiki/Portlan...
en.wikipedia.org/wiki/Joseph_...
en.wikipedia.org/wiki/Reinfor...
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For every video I try to use copyright free images. However if I have used any of your artwork or map, then please don't hesitate to contact me, and I’ll be more than happy to give the appropriate credit.

[@bernardmarsh4133]

Fantastic video.

[@SwiftZ_]

Insane vid my g

[@jamessteel1719]

Well done, I really enjoy your work. Very thoroughly researched and well presented!

[@bosstradie4213]

Great video, this is exactly the info I was looking for!

[@mrbigolnuts3041]

Thank you! super fascinating information

[@Jspr201]

Great vid broski

[@Jefferu_Nintendomoto]

The concrete pump gets no love. Just like on the job.

[@n.unnikrishnannair8885]

Interesting content for Civil Engg:Students.

[@GlobalSecularism]

Excellent video.

[@harrisonbrown6825]

Nice

[@macncheesepizza5420]

im just watching for my project at school

[@yagurlelecta8541]

Fuck yea! CONCRETE 🔥🔥🤘😁❤

[@petercroves8562]

No talk on the City of North Africa?, Thet are the people who really made concrete what we know it as the Romans just coyed them

[@jakehone]

They could drive in the desert?!

[@do0myk]

blood? O_O

[@hilaryhamm9161]

Re ' bar.

[@al2207]

concrete was not used to construct great pyramids there are only natural limestone and granite

[@djcrazy2685]

wat about the ancient stone castles way before all of this when the vikings were ruling!!