When the Romans were messing around with chemicals and rocks, looking for something that would allow them to construct barrel vaults and the odd aqueduct, I doubt they imagined that unreinforced concrete could one day achieve a level of refinement that would make the supremely elegant (late) Princess Grace look like a bit of a pig.

Image courtesy newcritic.com
But yes, the day has dawned: TAKTL is a new ultra high performance concrete (UHPC) with seemingly “unlimited potential in the architecture, landscape and product design industries” (Source: TAKTL).  This new material is similar to GFRC (Glass Fiber …

So I took a brief hiatus to go to Paris, and that is why I missed a week of posting. I am sorry. I needed cheese, wine, macaroons, and croissants in the worst possible way, and as a consequence last week I was unable to focus on materials that cannot be ingested. I hope you understand. Now that I’m back, I’d like to kick things off by telling you about a fantabulous rammed earth building system being developed by, fittingly, a French company: Toulouse-based Meco’concept.
We don’t see many rammed earth buildings in …

 
Joints are like an after-school program for cracks in concrete. If we fail to provide a place for cracks to occur safely, under supervision, and in aesthetically pleasing configurations, we as a society will be faced with complete anarchy in our walls and slabs.  This horrifying chaos could lead to unwed, underage cracks begetting more cracks and, possibly even more alarming, cracks on crack.
Sometimes, despite the provision of joints and reinforcing in concrete to resist tension, construction goes horribly wrong. Say the mix is off, or the wrong strength is used by mistake, or perhaps …