Production of silica gel from residual rice husk ash
This paper presents a study on the production of silica gel in hydrothermal process using residual rice husk ash. Measurements of the chemical composition, X-ray diffraction, infrared spectroscopy, particle size distribution, and pozzolanic activity were carried out in order to characterize the obta...
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Sociedade Brasileira de Química
2011-01-01
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| Series: | Química Nova |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000100014&lng=en&tlng=en |
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doaj-9ec7d49ae28240409a04734602acc9cb2020-11-24T22:53:43ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642011-01-01341717510.1590/S0100-40422011000100014S0100-40422011000100014Production of silica gel from residual rice husk ashSamantha Pinheiro Buás de Lima0Raimundo Pereira de Vasconcelos1Otávio Augusto Paiva2Guilherme Chagas Cordeiro3Márcia Rodrigues de Morais Chaves4Romildo Dias Toledo Filho5Eduardo de Moraes Rego Fairbairn6Universidade Federal do AmazonasUniversidade Federal do AmazonasUniversidade Federal do AmazonasUniversidade Estadual do Norte FluminenseUniversidade de São PauloUniversidade Federal do Rio de JaneiroUniversidade Federal do Rio de JaneiroThis paper presents a study on the production of silica gel in hydrothermal process using residual rice husk ash. Measurements of the chemical composition, X-ray diffraction, infrared spectroscopy, particle size distribution, and pozzolanic activity were carried out in order to characterize the obtained material, and the optimal silica gel was selected for use as a mineral additive in cement pastes. The compressive strengths were determined for cement pastes containing silica gel (0.0, 2.5 or 5% by mass) in different times. The results indicate that the mixtures containing silica gel showed improved mechanical behavior over all time periods evaluated.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000100014&lng=en&tlng=ensilica gelsol-gelrice husk ash |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Samantha Pinheiro Buás de Lima Raimundo Pereira de Vasconcelos Otávio Augusto Paiva Guilherme Chagas Cordeiro Márcia Rodrigues de Morais Chaves Romildo Dias Toledo Filho Eduardo de Moraes Rego Fairbairn |
| spellingShingle |
Samantha Pinheiro Buás de Lima Raimundo Pereira de Vasconcelos Otávio Augusto Paiva Guilherme Chagas Cordeiro Márcia Rodrigues de Morais Chaves Romildo Dias Toledo Filho Eduardo de Moraes Rego Fairbairn Production of silica gel from residual rice husk ash Química Nova silica gel sol-gel rice husk ash |
| author_facet |
Samantha Pinheiro Buás de Lima Raimundo Pereira de Vasconcelos Otávio Augusto Paiva Guilherme Chagas Cordeiro Márcia Rodrigues de Morais Chaves Romildo Dias Toledo Filho Eduardo de Moraes Rego Fairbairn |
| author_sort |
Samantha Pinheiro Buás de Lima |
| title |
Production of silica gel from residual rice husk ash |
| title_short |
Production of silica gel from residual rice husk ash |
| title_full |
Production of silica gel from residual rice husk ash |
| title_fullStr |
Production of silica gel from residual rice husk ash |
| title_full_unstemmed |
Production of silica gel from residual rice husk ash |
| title_sort |
production of silica gel from residual rice husk ash |
| publisher |
Sociedade Brasileira de Química |
| series |
Química Nova |
| issn |
1678-7064 |
| publishDate |
2011-01-01 |
| description |
This paper presents a study on the production of silica gel in hydrothermal process using residual rice husk ash. Measurements of the chemical composition, X-ray diffraction, infrared spectroscopy, particle size distribution, and pozzolanic activity were carried out in order to characterize the obtained material, and the optimal silica gel was selected for use as a mineral additive in cement pastes. The compressive strengths were determined for cement pastes containing silica gel (0.0, 2.5 or 5% by mass) in different times. The results indicate that the mixtures containing silica gel showed improved mechanical behavior over all time periods evaluated. |
| topic |
silica gel sol-gel rice husk ash |
| url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000100014&lng=en&tlng=en |
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