Two stories from the world of concrete:
The DJC, as part of its "Building with Concrete" section, has recognized the Stone34 building for 'Sustainable Merit'. The building is certified LEED Platinum, and concrete-related sustainable aspects include stormwater reuse, exposed concrete for thermal mass, and a variety of other methods.
More information at: https://www.djc.com/news/co/12077658.html
Dutch researchers are exploring methods to add bacteria to concrete mixes. The bacteria produce limestone when exposed to oxygen and provided with a set of nutrients which are added to the concrete mix design. The bacteria are exposed to oxygen when cracking occurs, and the intent is that the limestone produced then heals narrow cracks. Cost is currently an issue with mixes about double the typical cost.
More information at: http://www.durabilityanddesign.com/news/?fuseaction=view&id=13183
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