FROM WASTE TO RESOURCE: A CIRCULAR ECONOMY
Today, with RE-CON ZERØ EVO, the new product by Mapei for more sustainable concrete, it is possible to recover and transform returned concrete, thereby going from a “linear” economic model, based on the production of waste, to a more “circular” economic model, in which waste no longer exists and becomes a resource. A circular economy is a regenerative type of industrial system. It replaces the “end of life” concept with a concept of “restoration”, prevents the depletion and decline of natural resources, encourages the use of renewable energy, eliminates the use of toxic chemical substances that impede its reuse and return to the biosphere and aims at eliminating waste by improving the design of materials, products, systems and business models.
HOW RE-CON ZERO EVO WORKS
But how is it possible to transform returned concrete from waste material into a resource with RE-CON ZERØ EVO? When RE-CON ZERØ EVO is added to returned concrete in a mixer truck, or in any other suitable mixing system, in the space of just a few minutes the special additives contained in the product absorb any free water present and “dry” the concrete, and in so doing transforms it into aggregates characterised by a grain size distribution and mechanical characteristics that make them perfectly suitable to be used again to make new concrete without generating any waste, neither liquid nor solid.
ENVIRONMENTAL AND ECONOMIC ADVANTAGES WITH RE-CON ZERO EVO
The advantages of this innovative product are clear: the production of aggregates from returned concrete enables the acquisition of natural aggregates to be reduced by a corresponding amount, which in turn limits the depletion of raw materials, and it also completely eliminates the use of landfill sites which, in turn, further reduces its impact on the environment: with RE-CON ZERØ EVO, one cubic metre of returned concrete produces only 6.75 kg of CO2, almost 40 times less compared with disposing of it as landfill. Apart from these environmental benefits, there are also corresponding advantages associated with its use for the entire industrial system: a significant reduction in costs for production, the acquisition of raw materials and the disposal of waste.
Today, thanks to RE-CON ZERØ EVO, there is now the certainty that all returned concrete can be recovered and reused, by means of a process of industrial transformation based on the principles of a circular economy, to produce aggregates with all the technical and environmental requirements for its correct use in the production of concrete and in other civil engineering works.