The Centre Scientifique et Technique du Bâtiment (CSTB) has issued a Technical Evaluation of Products and Materials (ETPM) relating to Anthropocite® aggregate and its use in non-structural concrete.
Anthropocite® aggregates are mineral aggregates derived from the Accelerated Fossilization of non-recyclable waste, and there are no characterization standards to define their intrinsic performance, which is necessary to assess the material’s suitability for use.
Drawing on its network of expertise, CSTB assessed the intrinsic characteristics of Anthropocite®. Once this expertise had been gathered, CSTB issued an evaluation in the form of a Technical Evaluation of Products and Materials (ETPM). This evaluation constitutes the common basis for future work by construction process evaluation bodies.
The evaluation did not reveal any incompatibilities that would rule out the intended use. It was based on the assumption that Anthropocite® aggregate would be used in the manufacture of concrete using cement complying with NF EN 197-1 type CEM I, CEM II/A, CEM II/C, CEM III/A, CEM III/B or CSS complying with NF EN 15743 for the test results presented, and a substitution rate for Anthropocite® aggregate of no more than 10% of the chippings mass, for non-structural, non-reinforced uses such as clean concrete, trench concrete, kerbstone concrete and non-reinforced fill concrete.
A first step towards new uses
This evaluation, obtained following a voluntary process by Néolithe, is the basis for assessing the suitability of Anthropocite® and paving the way for new uses. Currently used by professionals to make non-structural concretes, Néolithe’s aim is to extend the uses of this new material to other types of concrete, including structural concretes, and in increasingly higher percentages, with a short-term objective of 30% substitution of traditional aggregates.