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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
27/01/2015 |
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Data da última atualização: |
28/12/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SANTOS, U. S. dos; SOUZA, A. V. de; SOUZA, M. D. de; BISPO, L. dos P.; OLIVEIRA, F. J. V. de. |
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Afiliação: |
UILIANE SOARES DOS SANTOS, Mestranda da Universidade Estadual de Feira de Santana/BA; ANA VALERIA VIEIRA DE SOUZA, CPATSA; MAZIELE DIAS DE SOUZA; LUMA DOS PASSOS BISPO, Mestranda da Universidade Estadual de Feira de Santana/BA; FLÁVIO JOSÉ VIEIRA DE OLIVEIRA, Professor - Departamento de Ciências Sociais/Universidade do Estado da Bahia. |
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Título: |
Avaliação da atividade antimicrobiana do óleo essencial de Lippia sp. cultivada no Submédio do Vale do São Francisco. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
In: SIMPÓSIO IBEROAMERICANO DE PLANTAS MEDICINAIS, 7.; SIMPÓSIO IBEROAMERICANO DE INVESTIGAÇÃO EM CÂNCER, 2., 2014, Ilhéus. A biodiversidade iberoamericana como fonte de produtos naturais bioativos. Ilhéus: UESB: UESC, 2014. |
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Descrição Física: |
1 Pen drive. |
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Idioma: |
Português |
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Conteúdo: |
Objetivo do trabalho foi avaliar o potencial antimicrobiano do óleo essencial de Lippia sp. cultivada no Submédio do Vale do São Francisco. |
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Palavras-Chave: |
Alecrim do mato; Bioma caatinga; Natural resource; Planta nativa. |
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Thesagro: |
Óleo Essencial; Planta medicinal; Recurso natural. |
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Thesaurus Nal: |
Essential oils; Lippia; Medicinal plants; Natural resources. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/116574/1/Ana-Valeria-4-cpatsa.pdf
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Marc: |
LEADER 01209nam a2200301 a 4500
001 2006837
005 2023-12-28
008 2014 bl uuuu u00u1 u #d
100 1 $aSANTOS, U. S. dos
245 $aAvaliação da atividade antimicrobiana do óleo essencial de Lippia sp. cultivada no Submédio do Vale do São Francisco.
260 $aIn: SIMPÓSIO IBEROAMERICANO DE PLANTAS MEDICINAIS, 7.; SIMPÓSIO IBEROAMERICANO DE INVESTIGAÇÃO EM CÂNCER, 2., 2014, Ilhéus. A biodiversidade iberoamericana como fonte de produtos naturais bioativos. Ilhéus: UESB: UESC$c2014
300 $c1 Pen drive.
520 $aObjetivo do trabalho foi avaliar o potencial antimicrobiano do óleo essencial de Lippia sp. cultivada no Submédio do Vale do São Francisco.
650 $aEssential oils
650 $aLippia
650 $aMedicinal plants
650 $aNatural resources
650 $aÓleo Essencial
650 $aPlanta medicinal
650 $aRecurso natural
653 $aAlecrim do mato
653 $aBioma caatinga
653 $aNatural resource
653 $aPlanta nativa
700 1 $aSOUZA, A. V. de
700 1 $aSOUZA, M. D. de
700 1 $aBISPO, L. dos P.
700 1 $aOLIVEIRA, F. J. V. de
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Registro original: |
Embrapa Semiárido (CPATSA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
26/09/2023 |
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Data da última atualização: |
15/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
TERRA, I. C. C.; BATISTA, F. G.; SILVA, D. W.; SCATOLINO, M. V.; ALVES JÚNIOR, F. T.; MARTINS, M. A.; MENDES, L. M. |
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Afiliação: |
Department of Forest Science, Federal University of Lavras (UFLA); Department of Forest Science, Federal University of Lavras (UFLA); Department of Production Engineering, State University of Amapá (UEAP); Graduate Program in Development and Environment, Federal University of the Semiarid Region (UFERSA); Department of Production Engineering, State University of Amapá (UEAP); MARIA ALICE MARTINS, CNPDIA; Department of Forest Science, Federal University of Lavras (UFLA). |
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Título: |
Mining waste and coconut fibers as an eco-friendly reinforcement for the production of concrete blocks. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Environmental Science and Pollution Research, v. 30, 2023. 62641?62652 |
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Páginas: |
62641-62652 |
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DOI: |
https://doi.org/10.1007/s11356-023-26493-5 |
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Idioma: |
Inglês |
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Conteúdo: |
Using mineral and agro-industrial wastes associated with the cement matrix can add value and guarantee suitable properties for reinforced composites. This research aimed to evaluate the effect of the incorporation of quartzite and coconut fibers on masonry blocks' physical, mechanical, and thermal properties. Quartzite was evaluated replacing 0%, 25%, 50%, 75%, and 100% of the sand, whereas the coconut fibers were added in a proportion of 2.5% of the volume of gravel. Quartzite residues were analyzed regarding their granulometry, chemical composition, and pozzolanicity. The block initial formulation (control) was: 8.2% cement, 45.9% sand, and 45.9% gravel. The cement was cured at room temperature for 28 days. Subsequently, the blocks were subjected to the characterization of physical, mechanical, and thermal properties. Coconut fibers presented a low percentage of extractives, with a low inhibition index (1.93%), reducing their effect on cement hardening. The increase in the content of quartzite incorporated provided a reduction in bulk density and an increase in porosity (from 11.7 to 16.0%) and water absorption after 24 h (from 7.0 to 8.5%). The compressive strength was reduced from 50% with the insertion of the quartzite. The quartzite and coconut fibers reduced the concrete's thermal conductivity, providing essential reflections for the performance of the blocks in terms of thermal comfort in built environments. Further, incorporating these materials provided the potential to obtain blocks with characteristics of resistance and offering possible thermal comfort, besides contributing as an option for a destination for these mineral and agro-industrial wastes. MenosUsing mineral and agro-industrial wastes associated with the cement matrix can add value and guarantee suitable properties for reinforced composites. This research aimed to evaluate the effect of the incorporation of quartzite and coconut fibers on masonry blocks' physical, mechanical, and thermal properties. Quartzite was evaluated replacing 0%, 25%, 50%, 75%, and 100% of the sand, whereas the coconut fibers were added in a proportion of 2.5% of the volume of gravel. Quartzite residues were analyzed regarding their granulometry, chemical composition, and pozzolanicity. The block initial formulation (control) was: 8.2% cement, 45.9% sand, and 45.9% gravel. The cement was cured at room temperature for 28 days. Subsequently, the blocks were subjected to the characterization of physical, mechanical, and thermal properties. Coconut fibers presented a low percentage of extractives, with a low inhibition index (1.93%), reducing their effect on cement hardening. The increase in the content of quartzite incorporated provided a reduction in bulk density and an increase in porosity (from 11.7 to 16.0%) and water absorption after 24 h (from 7.0 to 8.5%). The compressive strength was reduced from 50% with the insertion of the quartzite. The quartzite and coconut fibers reduced the concrete's thermal conductivity, providing essential reflections for the performance of the blocks in terms of thermal comfort in built environments. Further, incorporating these materials provided the potenti... Mostrar Tudo |
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Palavras-Chave: |
Block characterization; Composite; Lignocellulosic fibers; Mining wastes; Quartzite. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02555naa a2200277 a 4500
001 2156900
005 2024-01-15
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s11356-023-26493-5$2DOI
100 1 $aTERRA, I. C. C.
245 $aMining waste and coconut fibers as an eco-friendly reinforcement for the production of concrete blocks.$h[electronic resource]
260 $c2023
300 $a62641-62652
520 $aUsing mineral and agro-industrial wastes associated with the cement matrix can add value and guarantee suitable properties for reinforced composites. This research aimed to evaluate the effect of the incorporation of quartzite and coconut fibers on masonry blocks' physical, mechanical, and thermal properties. Quartzite was evaluated replacing 0%, 25%, 50%, 75%, and 100% of the sand, whereas the coconut fibers were added in a proportion of 2.5% of the volume of gravel. Quartzite residues were analyzed regarding their granulometry, chemical composition, and pozzolanicity. The block initial formulation (control) was: 8.2% cement, 45.9% sand, and 45.9% gravel. The cement was cured at room temperature for 28 days. Subsequently, the blocks were subjected to the characterization of physical, mechanical, and thermal properties. Coconut fibers presented a low percentage of extractives, with a low inhibition index (1.93%), reducing their effect on cement hardening. The increase in the content of quartzite incorporated provided a reduction in bulk density and an increase in porosity (from 11.7 to 16.0%) and water absorption after 24 h (from 7.0 to 8.5%). The compressive strength was reduced from 50% with the insertion of the quartzite. The quartzite and coconut fibers reduced the concrete's thermal conductivity, providing essential reflections for the performance of the blocks in terms of thermal comfort in built environments. Further, incorporating these materials provided the potential to obtain blocks with characteristics of resistance and offering possible thermal comfort, besides contributing as an option for a destination for these mineral and agro-industrial wastes.
653 $aBlock characterization
653 $aComposite
653 $aLignocellulosic fibers
653 $aMining wastes
653 $aQuartzite
700 1 $aBATISTA, F. G.
700 1 $aSILVA, D. W.
700 1 $aSCATOLINO, M. V.
700 1 $aALVES JÚNIOR, F. T.
700 1 $aMARTINS, M. A.
700 1 $aMENDES, L. M.
773 $tEnvironmental Science and Pollution Research$gv. 30, 2023. 62641?62652
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