Source: www.bbc.com
It looked like normal concrete. It poured like normal concrete. But it had a super power.
James Baker, chief executive of Graphene@Manchester, couldn't quite believe what he was seeing as he observed the installation of a new roller disco floor in Manchester's Depot Mayfield development.
The concrete slab was setting so fast, and so strong, that the builders had begun gliding polishing machines over the driest part of the floor while their colleagues were still pouring the other end of the rink.
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