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Go Back   Armchair General and HistoryNet >> The Best Forums in History > Military/History Related Hobbies > Research, Reference and Historical Study > Science

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Science Discussions about hard science.

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  #1  
Old 05 Jul 17, 09:13
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Romans made better concrete

Quote:
Unlike the modern concrete mixture which erodes over time, the Roman substance has long puzzled researchers.
Rather than eroding, particularly in the presence of sea water, the material seems to gain strength from the exposure.
Now the secret of Roman concrete has been uncovered and it may well come back into use again. It also appears that the process of making Roman concrete is also less polluting than modern Portland cement based mixes.

Any other ancient technology going to make a\ comeback I wonder.

http://www.bbc.co.uk/news/science-environment-40494248
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  #2  
Old 05 Jul 17, 09:19
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Quote:
Ancient sea walls built by the Romans used a concrete made from lime and volcanic ash to bind with rocks.

Now scientists have discovered that elements within the volcanic material reacted with sea water to strengthen the construction.
Interesting,

Quote:
Researchers have now carried out a more detailed examination of the harbour samples using an electron microscope to map the distribution of elements. They also used two other techniques, X-ray micro-diffraction and Raman spectroscopy, to gain a deeper understanding of the chemistry at play.
Quote:
Another drawback is the lack of the precise mixture that the Romans followed. It might take years of experimenting to discover the full formula.
Strange that took/should take so long ?
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Old 05 Jul 17, 10:07
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Originally Posted by Snowygerry View Post
Interesting,





Strange that took/should take so long ?
Well if it took electron scanning microscopes etc to work it out perhaps not so surprisingf
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