ENEA: brewer’s yeast and water for new bio-concrete
Brewer’s yeast and oxygenated water are the two components of a new type of bio-compatible concrete having high thermal, acoustic and fire-proofing insulation properties, developed and patented by ENEA.
The innovative process called BAAC - Bio Aerated Autoclavated Concrete, developed by the researchers of ENEA Bioenergy Division and Biosafety Laboratory, is based on the use of brewer’s yeast and oxygenated water and has been developed at the labs of ENEA Research centres of Casaccia, near Rome and Trisaia, Basilicata, specialized in green energy and bioenergy.
This system will considerably reduce manufacturing costs, and yield a product that is more environmentally sustainable than conventional aerated cellular concrete currently on the market, with a considerable drop in energy expenses and indirect costs related to plant management, safety and number of additional components needed.
“This process innovation is still a niche, but has great potential; our research activities have drawn the attention of subjects involved in the production chain of cellular concrete who have contributed by providing raw material free of charge”, said Piero De Fazio from Trisaia ENEA Research Centre.
The process developed by ENEA replaces aluminum powder, which is also very inflammable, with brewer’s yeast mixed with oxygenated water. The result is a product with a great amount of air bubbles, and therefore technically very light, but which leaves the mechanic and physical characteristics of the cementitious material unaltered.