Check this out, Three little pigs!

Spray-on ceramic transforms Styrofoam into rock-solid dwellings

by Argonne National Laboratory

Argonne National Laboratory

A house made of Styrofoam?
Sounds flimsy. But spray it with a new brick-like concoction called Grancrete, and it's virtually indestructible. Invented by scientists at Argonne National Laboratory near Chicago and builders at Casa Grande, a construction firm
in Mechanicsville, Virginia, Grancrete is twice as strong as structural concrete and won´t leak or crack. It's also affordable: When the first bags roll off the production line later this month, builders will be able raise a home for $10 a square foot, compared with $150 for a standard U.S. home.

Traditional concrete, composed of calcite, water and sand or stone, can take up to three weeks to harden. Grancrete dries in one day. Its main ingredients--magnesium oxide and potassium phosphate--form tighter bonds than those in the concrete mixture. Load the slurry into a handheld pump, spray it over a Styrofoam frame, and you´ve got a home in 24 hours flat.