Just checked back on the article and there's this:“For a normal person, the very first thing that will be in their mind is, ‘ooh it’s plastic, how about burning, what if it catches fire?’ But looking at the composition of the block, he’s added sand,” says Botchway.“Sand is more or less like a fire extinguisher, so mixing sand with plastic, is really going to burn very slowly—that’s one feature I really give him thumbs up for,” he says.
Katrina Black ● 1403d