Innovative Lightweight and Sustainable Composite Material for Building Applications

Corradino Sposato, Tiziana Cardinale (), Maria Bruna Alba, Andrea Feo, Luca Pala and Piero De Fazio
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Corradino Sposato: Section “Processes and Materials for Energy Applications”, Department “Energy Technologies and Renewable Sources”, ENEA—Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Trisaia Research Centre, S.S. 106 Ionica, km 419 + 500, 75026 Rotondella, MT, Italy
Tiziana Cardinale: Section “Processes and Materials for Energy Applications”, Department “Energy Technologies and Renewable Sources”, ENEA—Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Trisaia Research Centre, S.S. 106 Ionica, km 419 + 500, 75026 Rotondella, MT, Italy
Maria Bruna Alba: Section “Processes and Materials for Energy Applications”, Department “Energy Technologies and Renewable Sources”, ENEA—Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Trisaia Research Centre, S.S. 106 Ionica, km 419 + 500, 75026 Rotondella, MT, Italy
Andrea Feo: Section “Processes and Materials for Energy Applications”, Department “Energy Technologies and Renewable Sources”, ENEA—Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Trisaia Research Centre, S.S. 106 Ionica, km 419 + 500, 75026 Rotondella, MT, Italy
Luca Pala: Fluorsid S.p.a., II’ Strada Est, Località Macchiareddu-Grogastu I, 09032 Cagliari, CA, Italy
Piero De Fazio: Section “Processes and Materials for Energy Applications”, Department “Energy Technologies and Renewable Sources”, ENEA—Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Trisaia Research Centre, S.S. 106 Ionica, km 419 + 500, 75026 Rotondella, MT, Italy

Sustainability, 2025, vol. 17, issue 16, 1-16

Abstract: In recent years, the application of sustainable cementitious materials has become of great importance to improve buildings efficiency and to achieve carbon neutrality. Main goal of this work to study and develop BIOAERMAC, an innovative construction material with low density, composed of synthetic anhydrous calcium sulfate obtained as by-product in the industrial production of hydrofluoric acid and an aerating agent composed of microorganisms and peroxides, with the addition of rubber from end-of-life tires (ELTs). A density from 600 to 950 kg/m 3 with a compressive strength up to 6.0 MPa and a thermal conductivity from 0.15 to 0.3 W/mK are the key performance metrics of BIOAERMAC composites. Experimental results showed an improvement in technical and energy performance, combined with a reduction in natural resource consumption and the wide quantity of by-product reintroduced into the production process.

Keywords: X-ray diffraction; image analysis; thermal analysis; compressive strength; physical properties; ettringite; sulfoaluminate; green composite (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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