German engineer Ricardo Kocadag has developed what he claims is the “first concrete record,” built from a high-performance concrete developed for high-rise buildings and bridges.
The idea was not to dramatically increase the weight of your music collection, but rather to show that the load-supporting material can also be finely finished and detailed. A type of “ultra high-performance concrete,” or UHPC, it’s often used on unusually-shaped, detailed structures like the Fondation Louis Vuitton in Paris.
As such, he appropriately chose a piece of the Rolling Stones’ (I Can’t Get No) Satisfaction to cut into the 6mm slab (music concrte might have been more appropriate if not so obscure).
There is some doubt about the claim to be first nevertheless, the sound quality on Kocadag’s mini-LP is superior, and is playable on a regular turntable, as you can see in the video from BFM.FM.