The fly ash of biomass from the ENCE plant in Merida, after treatment to be used as a heavy metal adsorbent in sewage sludge in the prototype developed at the Lobón treatment plant, has allowed to obtain lightweight artificial aggregates.

<div> Currently, 80% of the artificial ightweight&nbsp; aggregates used come from the expansion of clays and slates with energy-intensive sintering methods.</div> <div> &nbsp;</div> <div> The method used for the production of light aggregates from fly ash is a highly sustainable method that does not require the use of natural aggregates and minimal energy input.</div> <div> &nbsp;</div> <div> INTROMAC in activity B.8 investigates the properties of this material, taking into account its possibility of being used as a light aggregate for concretes and being able to manufacture cement-based products in the Manzano Constructions plant, with improvements in performance such as: lightness, and thermal and acoustic behavior.</div>