I don't know that they are not treated with fire retardant.What kind of toxicity do the bricks put off when ignited as in a home or building fire? I'd prefer to hear it from the manufacturer rather than a pathologist investigating a fire scene in which all indoor residents didn't make it to an exit in the structure.I'm sure that's not all there is to it. Read the article.This is cool.
It could help solve the plastic waste problem and housing.
How exactly is melting down plastic into construction blocks some kind of new tech?
“According to Matee, using sand and a mixture of plastic waste can produce bricks, manholes, and tiles that are stronger than traditional concrete materials used for construction. Matee boasts that “Our product is almost five to seven times stronger than concrete.” What’s more, Matee’s recycled bricks are lighter and cheaper than more traditional construction products.”