How To Make Roman Concrete That Lasts More Than 2,000 Years…

How To Make Roman Concrete That Lasts More Than 2,000 Years...

Roman concrete was a material used in construction during the late Roman Republic until the fading of the Roman Empire. Roman concrete was based on a hydraulic-setting cement. Recently, it has been found that it materially differs in several ways from modern concrete which is based on Portland cement. Roman concrete is durable due to its incorporation of volcanic ash, which prevents cracks from spreading.

Recent scientific breakthroughs examining Roman concrete are gathering media and industry attention. Because of its unusual durability, longevity and lessened environmental footprint, corporations and municipalities are starting to explore the use of Roman-style concrete in North America, substituting the coal fly ash with volcanic ash that has similar properties.

Proponents claim that concrete made with volcanic ash can cost up to 60% less because it requires less cement, and that it has a smaller environmental footprint due to its lower cooking temperature and much longer lifespan. Usable examples of Roman concrete exposed to harsh marine environments have been found to be 2000 years old with little or no wear. Here are a couple of videos exploring how you can make it yourself…



An Attempt at Reproducing Ancient Roman Concrete by using Limestone, Volcanic Ash and Aggregate…

Using Artificial Pozzolans like Terracotta and Red Brick Dust as Substitutes for Volcanic Ash to create a Modern Version of Roman Concrete…

If you like this idea, be sure to share it with your friends and inspire someone you know. Anything becomes possible with just a little inspiration…

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(9) comments

But the America is only 280 years…..

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This is pretty cool.

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Let’s do it!

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I have been making this for years. It is called Ferro Cement, 2-1sand and cement, replace 15% of the very fine sand with a Pozzlan like Fly ash or Diatomasious earth, because i repair ferro Cement boats i add a small amount of trioxide to combat the galvanic reaction from the chicken mesh. This mix is water tight, used for water tanks and boats. amazing material..

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Whew, glad i read that, was wondering where i would get that volcano ash. Can someone recomend what location the ancient romans got their chicken wire from? ?

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Isn’t that interesting … How come that northamerican infrastructure is crumbling after only a couple of hundred years …

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Great for those that live on the big island of Hawaii

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