O professor Henk Jonkers, da Delft University of Technology, In Holland, He developed a "longer life" to concrete.
To create the self regenerative effect, Jonkers microorganisms has incorporated the material composition.
The Bioconcreto is a blend of the traditional concrete, bacteria (Bacillus Pseudofirmus) and calcium lactate (Food Bacteria). Its microbiological feature the power of self regeneration.
When cracks appear in the building structure, the bacteria are exposed to physical elements, in particular water. Thus, they "agree" and consume calcium lactate and, after digestion, release limestone repairing cracks with less width to 8mm. These bacteria form spores and can survive for more than 200 years in buildings.
The cost is higher than conventional concrete, In contrast, eliminates most of the repair costs. Thus, the initial value is rewarded in the long run.
lidiane Bazaglia
