Recycling thermally detoxified asbestos-cement in stone-wool : an end-less-life material!

Capitani, Giancarlo (avtor), Vergani, Fabrizio (avtor), Conconi, Roberto (avtor), Mrvar, Primož (avtor), Bombač, David (avtor), Slemenik Perše, Lidija (avtor), Oseli, Alen (avtor), Bizjan, Benjamin (avtor)

Deactivated (detoxified) asbestos-cement (DAC), i.e. asbestos-cement slates thermally treated at 1100 °C in order to convert the harmful asbestos fibers into non harmful mineral phases, has been successfully mixed with 74.6 wt% quartz sand and up to 63.2 wt% basalt sand, to produce stone wool with mechanical properties and composition competitive with commercial stone wool. The sample with 50 % DAC and 50 % basalt provided the best comparison with commercial stone wool in terms of liquidus temperature (lower than for the other mixtures) and Young’s modulus (higher). Through further composition optimization and utilization of multiple components, we estimate that future batches could utilize 70–75 % of DAC. These promising results and expectations highlight a feasible reuse of DAC as secondary raw material for stone wool production and a possible route to the elimination of a toxic waste from the environment and the preservation of primary raw materials.

• Jezik: Angleški jezik
• Ključne besede: stone-wool, asbestos-cement, thermal detoxification, recycling, circular economy
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo ; NTF - Naravoslovnotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2024
• Št. strani: 10 str.
• Številčenje: Vol. 440, art. 137351
• PID: 20.500.12556/RUL-159744
• UDK: 669
• ISSN pri članku: 0950-0618
• DOI: 10.1016/j.conbuildmat.2024.137351
• COBISS.SI-ID: 202286339
• Datum objave v RUL: 22.07.2024

Gradivo je del revije

• Naslov: Construction & building materials
• Skrajšan naslov: Constr. build. mater.
• Založnik: Scientific & Technical Press
• ISSN: 0950-0618
• COBISS.SI-ID: 25270784

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: kamena volna, azbest, recikliranje