In INTROMAC, with the results obtained in the characterization of the fly ash and slag as lightweight aggregates, a cement-based material was designed in which part of the amount of lightweight aggregates was replaced by biomass aggregated and treated fly ash and slags, reducing the use of non-renewable resources, obtaining concrete with properties similar to conventional ones and confirming to the new materials new properties that make this material more sustainable, light and effective.

<p style="text-align: justify;">Progress continues in Action 9, Construcciones Manzano industrial plant was adapted to the use of new raw materials from the aggregated and treated ashes as a product of the prototype designed in Action B.5 of the project. After the required adaptations in plant, we have proceeded to the industrial design and manufacture of the new materials in the plant, where the use in concrete of the aggregated and trated fly ash has been considered to produce precast concrete wall panels for the construction of prefabricated houses and on the other hand, the slags were usted to produce for a non-structural concrete that it will be used to manufacture bard (covering). In the Manzano Group facilities, a prototype of a slab has been manufactured in laboratory dimensions to carry out tests before producing of the final concrete slab, which it will be manufactured when the results of these tests have been obtained.</p> <p style="text-align: justify;"><br /> The results obtained in the validation of these materials in relation to their thermal and acoustic behavior, physical properties and durability will help us to determine if the new materials manufactured from biomass aggregated and treated fly ash and slag have similar or improved properties when we compared to conventional, facilitating the circular economy model based on use industrial waste as raw material for the manufacture of new, more sustainable and ecological construction materials.<br /> &nbsp;</p>