Page 50 - New Trends in Green Construction

Circular Economy
suction, cold absorption and porosity tests show that as the percentage of added waste increases, the porosity content (open and total) of the manufactured materials increases, decreasing the apparent density values of the samples. The observed increase in porosity significantly affects the quality of the manufactured materials, causing an instability of the ceramic structure that produces a drastic decrease in the values of resistance to compression. However, the pieces made with5%ofpapersludge, and5and10%ofEDARsludgecomplywiththelimitestablishedbythe AENOR Standard for unseen ceramic bricks. In view of the results obtained in this work, the manufacture of sustainable or ecological bricks in which part of the traditional raw material is replaced by the waste studied may be a viable alternative from an economic and environmental point of view to the traditional product that currently exists on the market.
4. Acknowledgements
This research has been carried out as part of the project "SMARTMAT: Smart materials for sustainable construction (MA T2015-70034-R)", funded by the Spanish Ministry of E c o n o m y and Competitiveness and FEDER (MINECO-FEDER). The authors also acknowledge with gratitude the technical and human support provided by the CICT of the University of Jaén and the University of Málaga (UJA, UMA, MINECO, Junta de Andalucía, FEDER).
5. References
Elías Castells, X. and Bordas Alsina, S. (2017). Circular economy: conversion of waste Sewage sludge: a rising waste. Treatment systems. Suez Spain, S.L.
Lett, L.A., (2014), Global threats, waste recycling and the circular economy concept. Rev Argent Microbiol. 46 (1), pp. 1-2.
into resources. Volume 12.
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