“The carbon footprint of clay bricks and concrete is much higher, with the energy used to bake them in a kiln,” Butko said. “Our blocks for this project were made with soil dug out for campus construction projects, they dropped it off by the dumptruck.”
If CEB technology proves successful by NGBS standards, Habitat for Humanity affiliates around the nation could forseeably use this much greener method on their construction sites.
“The compression machine to make the blocks is portable, and the earth displaced in digging foundations could be used to make the actual material for the house,” Butko said.
The finished homes will look identical, with exterior siding and interior plaster concealing the earth blocks, and the test of time will determine CEB technology’s feasibility as a green alternative.
“We’re basically building the same house twice but swapping the guts for one of them,” Butko said.