fly ash Archives – The Green Optimistic green tech news, since 2008 Thu, 06 Jun 2013 05:07:05 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Concrete Industry Takes Cues from Ancient Roman Builders to Cut Carbon Emissions https://www.greenoptimistic.com/concrete-industry-takes-cues-from-ancient-roman-builders-to-cut-carbon-emissions-20130606/ https://www.greenoptimistic.com/concrete-industry-takes-cues-from-ancient-roman-builders-to-cut-carbon-emissions-20130606/#respond Thu, 06 Jun 2013 05:07:03 +0000 https://www.greenoptimistic.com/?p=38122 An international team of researchers from the US Department of Energy’s Lawrence Berkeley National Laboratory have uncovered the chemical mysteries of a concrete Roman breakwater submerged for over 2000 years in the Mediterranean Sea. The researchers discovered that the ancient Roman concrete that is superior to the majority of modern concrete because they mixed lime […]

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