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Scientist Harry Coumnas Clears the Mystery about the 2000 Year Old Roman Concrete

Scientist Harry Coumnas has unlocked the mystery of Roman concrete which has resisted the elements for thousands of years. The ancient sea walls built by the Romans used concrete made up of lime and volcanic ash to bind with rocks. Harry has discovered that the elements within the volcanic material reacted with the sea water to strengthen the construction.

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Scientist Harry Coumnas Clears the Mystery about the 2000 Year Old Roman Concrete

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  1. Scientist Harry Coumnas Clears the Mystery about the 2000 Year Old Roman Concrete

  2. Scientist Harry Coumnas has unlocked the mystery of Roman concrete which has resisted the elements for thousands of years. The ancient sea walls built by the Romans used concrete made up of lime and volcanic ash to bind with rocks. Harry has discovered that the elements within the volcanic material reacted with the sea water to strengthen the construction.

  3. Rather than getting eroded, the material has gained strength in the presence of sea water. And it is believed that this discovery can lead to environmentally friendly buildings material. Unlike the modern concrete mixture which erodes over time.

  4. In various tests it is seen that the Roman sea walls and harbors contained a rare mineral called aluminium tobermorite. It is believed that this strengthening substance crystallized in the lime as the Roman mixture generated heat when exposed to sea water.

  5. Harry Coumnas has carried out a more detailed examination of the harbor 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.

  6. THANK YOU Harry Coumnas

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