Incorporation of PET wastes in rendering mortars based on Portland cement/hydrated lime
| Autor: | Cesar Fabiano Fioriti, José Luiz Pinheiro Melges, Marcelo Bortoletto, Rodrigo Guerra da Silva, Felipe de Almeida Spósito, Ricardo Tokio Higuti, Mauro Mitsuuchi Tashima, Jorge Luís Akasaki, Camila Cassola Assunção |
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| Přispěvatelé: | Universidade Estadual Paulista (Unesp) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
business.product_category Absorption of water 0211 other engineering and technologies Open-loop recycling 02 engineering and technology engineering.material law.invention chemistry.chemical_compound law 021105 building & construction Architecture medicine Polyethylene terephthalate Bottle 021108 energy Composite material Safety Risk Reliability and Quality Porosity Civil and Structural Engineering Lime Rendering portland cement/hydrated lime mortar Building and Construction Water retention Portland cement chemistry Sustainability Mechanics of Materials engineering PET waste medicine.symptom Mortar business |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| Popis: | Made available in DSpace on 2020-12-12T02:10:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-11-01 Nowadays, the Polyethylene Terephthalate (PET) bottle, which is a post-consumer product, has generated a strong interest in the environmental consequences that surround it, and a suitable alternative is to incorporate it in mortar and concrete. Therefore, the aim of this research was to evaluate rendering mortars based on Portland cement/hydrated lime produced with PET bottle waste, used to partially replace 2.5%, 5%, 10%, 15% and 20% (by volume) of the fine aggregate in order to investigate the effectiveness and the improvement of these materials. The experimental program was performed in the fresh and hardened states, to determine flowability, fresh and hardened densities, air content, apparent porosity, water absorption by immersion, water retention, water absorption by capillarity, drying, water vapor permeability, ultrasonic wave velocity, and dynamic modulus of elasticity. Also, scanning electron microscopy (SEM) was performed. Generally, the results showed that the incorporation of PET significantly changed some properties, as verified by statistical analysis. Remarkable results from the incorporation of PET into rendering mortars based on Portland cement/hydrated lime are: close to 90% similarity of water retention between the mixtures, water absorption due to capillarity of M2.5 at 1.89 kg/(m2·min1/2), drying of the M15 specimen at 5.85 kg/m2, water vapor permeability of the M20 at 41.15 (ng/(m·s·Pa)) and the dynamic modulus of elasticity of M2.5 at 3.57 GPa. These replacements showed the possibility of mitigating the environmental impacts that the PET bottle life cycle can have and the extraction of the fine aggregate, promoting another possibility of disposal for this waste. Universidade Estadual Paulista (UNESP) Faculdade de Engenharia de Ilha Solteira Departamento de Engenharia Civil MAC – Grupo de Pesquisa em Materiais Alternativos de Construção, Alameda Bahia, n. 550 Universidade Estadual Paulista (UNESP) Faculdade de Engenharia de Ilha Solteira Departamento de Engenharia Elétrica, Avenida Brasil, n. 56 Universidade Estadual Paulista (UNESP) Faculdade de Ciências e Tecnologia Departamento de Planejamento Urbanismo e Ambiente MAC – Grupo de Pesquisa em Materiais Alternativos de Construção, Rua Roberto Simonsen, n. 305 Universidade Estadual Paulista (UNESP) Faculdade de Engenharia de Ilha Solteira Departamento de Engenharia Civil MAC – Grupo de Pesquisa em Materiais Alternativos de Construção, Alameda Bahia, n. 550 Universidade Estadual Paulista (UNESP) Faculdade de Engenharia de Ilha Solteira Departamento de Engenharia Elétrica, Avenida Brasil, n. 56 Universidade Estadual Paulista (UNESP) Faculdade de Ciências e Tecnologia Departamento de Planejamento Urbanismo e Ambiente MAC – Grupo de Pesquisa em Materiais Alternativos de Construção, Rua Roberto Simonsen, n. 305 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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