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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroenergia. Para informações adicionais entre em contato com cnpae.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agroenergia. |
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Data corrente: |
10/08/2016 |
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Data da última atualização: |
19/09/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, L. D. da; SANTANA, T. A. de; OLIVEIRA, P. S. de; LAVIOLA, B. G.; COSTA, M. G. C. da; ALMEIDA, A.-A. F. de.; GOMES, F. P. |
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Afiliação: |
Leandro Dias da Silva, Universidade Estadual de Santa Cruz; Tessio Araujo de Santana, Universidade Estadual de Santa Cruz; Priscila Souza de Oliveira, Universidade estadualde santa cruz; BRUNO GALVEAS LAVIOLA, CNPAE; Márcio Gilberto Cardoso da Costa, Universidade Estadual de Santa Cruz; Alex-Alan Furtado de Almeida, Universidade Estadual de Santa Cruz; Fábio Pinto Gomes, Universidade Estadual de Santa cruz. |
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Título: |
Abscisic acid-mediated stomatal closure and antioxidant defenses in Jatropha curcas L. seedlings submitted to moderate water deficit. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
African Journal of Agricultural Research, v. 11, n. 30, p. 2806-2816, 2016. |
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DOI: |
10.5897/AJAR2015.10587 |
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Idioma: |
Inglês |
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Palavras-Chave: |
Antioxidant enzymes; Compatible osmolytes; Enzimas antioxidantes; Estresse abiótico; Osmolytes compatíveis; Trocas gasosas. |
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Thesagro: |
Euphorbiaceae. |
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Thesaurus Nal: |
abiotic stress; gas exchange. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00992naa a2200301 a 4500
001 2050632
005 2017-09-19
008 2016 bl uuuu u00u1 u #d
024 7 $a10.5897/AJAR2015.10587$2DOI
100 1 $aSILVA, L. D. da
245 $aAbscisic acid-mediated stomatal closure and antioxidant defenses in Jatropha curcas L. seedlings submitted to moderate water deficit.$h[electronic resource]
260 $c2016
650 $aabiotic stress
650 $agas exchange
650 $aEuphorbiaceae
653 $aAntioxidant enzymes
653 $aCompatible osmolytes
653 $aEnzimas antioxidantes
653 $aEstresse abiótico
653 $aOsmolytes compatíveis
653 $aTrocas gasosas
700 1 $aSANTANA, T. A. de
700 1 $aOLIVEIRA, P. S. de
700 1 $aLAVIOLA, B. G.
700 1 $aCOSTA, M. G. C. da
700 1 $aALMEIDA, A.-A. F. de.
700 1 $aGOMES, F. P.
773 $tAfrican Journal of Agricultural Research$gv. 11, n. 30, p. 2806-2816, 2016.
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Registro original: |
Embrapa Agroenergia (CNPAE) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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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: |
23/09/2021 |
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Data da última atualização: |
10/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
SILVA, D. W.; BUFALINO, L.; MARTINS, M. A.; SAVASTANO JÚNIOR, H.; TONOLI, G. H. D.; MENDES, L. M. |
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Afiliação: |
MARIA ALICE MARTINS, CNPDIA. |
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Título: |
Superabsorbent ability polymer to reduce the bulk density of extruded cement boards. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Journal of Building Engineering, v. 43, 103130, 2021. |
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Páginas: |
1 - 7 |
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ISSN: |
2352-7102 |
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DOI: |
https://doi.org/10.1016/j.jobe.2021.103130 |
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Idioma: |
Inglês |
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Conteúdo: |
The extrusion process has numerous advantages in the production of cement materials; however, cement extruded products over gain bulk density, adding costs to their fixation, workability, and application as structural reinforcement. The objective of this research was to develop and test extruded lightweight cement-based boards with the addition of superabsorbent polymer (SAP). A plain cement board containing 70% of cement and 30% of limestone filler was prepared. The different percentages of SAP from 0.0 to 2.0% based on cement mass did not interfere in the extrusion process. However, an expansion of the cement boards containing 1.0, 1.5, and 2.0% SAP occurred when passing through the extruder nozzle. The apparent porosity increased, and millimetric voids arose in the cement boards by increasing the SAP percentage. The apparent density of the cement boards favorably decreased from 8.6 to 28.4% by adding different percentages of SAP. However, the microstructural modifications raised the water absorption and substantially decreased the mechanical performance. Still, adding only 0.5% of SAP reduced the bulk density by about 10% without substantially decreasing the mechanical performance of the cement boards. Therefore, the SAP was very efficient in producing lightweight cement boards by extrusion. |
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Palavras-Chave: |
Air-entraining; Cement materials. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02035naa a2200241 a 4500
001 2134735
005 2022-06-10
008 2021 bl uuuu u00u1 u #d
022 $a2352-7102
024 7 $ahttps://doi.org/10.1016/j.jobe.2021.103130$2DOI
100 1 $aSILVA, D. W.
245 $aSuperabsorbent ability polymer to reduce the bulk density of extruded cement boards.$h[electronic resource]
260 $c2021
300 $a1 - 7
520 $aThe extrusion process has numerous advantages in the production of cement materials; however, cement extruded products over gain bulk density, adding costs to their fixation, workability, and application as structural reinforcement. The objective of this research was to develop and test extruded lightweight cement-based boards with the addition of superabsorbent polymer (SAP). A plain cement board containing 70% of cement and 30% of limestone filler was prepared. The different percentages of SAP from 0.0 to 2.0% based on cement mass did not interfere in the extrusion process. However, an expansion of the cement boards containing 1.0, 1.5, and 2.0% SAP occurred when passing through the extruder nozzle. The apparent porosity increased, and millimetric voids arose in the cement boards by increasing the SAP percentage. The apparent density of the cement boards favorably decreased from 8.6 to 28.4% by adding different percentages of SAP. However, the microstructural modifications raised the water absorption and substantially decreased the mechanical performance. Still, adding only 0.5% of SAP reduced the bulk density by about 10% without substantially decreasing the mechanical performance of the cement boards. Therefore, the SAP was very efficient in producing lightweight cement boards by extrusion.
653 $aAir-entraining
653 $aCement materials
700 1 $aBUFALINO, L.
700 1 $aMARTINS, M. A.
700 1 $aSAVASTANO JÚNIOR, H.
700 1 $aTONOLI, G. H. D.
700 1 $aMENDES, L. M.
773 $tJournal of Building Engineering$gv. 43, 103130, 2021.
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Embrapa Instrumentação (CNPDIA) |
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