Sandy soil stabilization with asphalt emulsion for paving purposes
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2022 |
| Outros Autores: | , , , |
| Tipo de documento: | Artigo |
| Idioma: | por |
| Título da fonte: | Research, Society and Development |
| Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/24274 |
Resumo: | Highways are the most used modal for the transportation of cargo and people in Brazil. However, there is usually no availability of soils that meet pavement design criteria, emphasizing the need for soil stabilization techniques for material adjustments within the desired specifications. Therefore, this work aimed to evaluate the behavior of a well-graded silty sand (SM-SW) from the city of Natal/RN, whose characteristics are unsatisfactory for paving. It was stabilized with fast-breaking asphalt emulsion (RR-2C). California Bearing Ratio (CBR) and Dynamic Cone Penetrometer (DCP) tests were performed in three emulsion contents (3%, 5%, and 7%) under three conditions: without curing and without immersion; without curing and with immersion; and with 7 days cure and immersion. The results indicate a reduction in bearing capacity after mixing, even though the correlations between CBR and DCP have presented more adequate adjustments and improved coefficients of determination (R²), with values superior to 0.80. Besides, after the curing process, there was an increase in the CBR values, but the emulsion has still proven to be low effective in stabilizing the soil for use as base and sub-base of a pavement. |
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Sandy soil stabilization with asphalt emulsion for paving purposesEstabilización de suelos arenosos con emulsión asfáltica para pavimentaciónEstabilização de solo arenoso com emulsão asfáltica para fins de pavimentaçãoRodoviasPavimentaçãoSoloEstabilizaçãoEmulsão.HighwaysPavingSoilStabilizationEmulsion.CarreterasPavimentaciónSueloEstabilizaciónEmulsión.Highways are the most used modal for the transportation of cargo and people in Brazil. However, there is usually no availability of soils that meet pavement design criteria, emphasizing the need for soil stabilization techniques for material adjustments within the desired specifications. Therefore, this work aimed to evaluate the behavior of a well-graded silty sand (SM-SW) from the city of Natal/RN, whose characteristics are unsatisfactory for paving. It was stabilized with fast-breaking asphalt emulsion (RR-2C). California Bearing Ratio (CBR) and Dynamic Cone Penetrometer (DCP) tests were performed in three emulsion contents (3%, 5%, and 7%) under three conditions: without curing and without immersion; without curing and with immersion; and with 7 days cure and immersion. The results indicate a reduction in bearing capacity after mixing, even though the correlations between CBR and DCP have presented more adequate adjustments and improved coefficients of determination (R²), with values superior to 0.80. Besides, after the curing process, there was an increase in the CBR values, but the emulsion has still proven to be low effective in stabilizing the soil for use as base and sub-base of a pavement.El modal más utilizado para el transporte de carga y personas en Brasil es la carretera. Sin embargo, por muchas veces, no hay disponibilidad de materiales que cumplan con los requisitos de pavimentación, enfatizando la necesidad de técnicas de estabilización del suelo para ajustar el material a las especificaciones deseadas. Así, el objetivo de este trabajo fue evaluar el comportamiento de una arena limosa bien graduada (SM-SW), de la ciudad de Natal / RN, cuyas características son incompatibles para su uso en el pavimento. Este se estabilizó con emulsión asfáltica de ruptura rápida (RR-2C). Las pruebas de California Bearing Ratio (CBR) y Dynamic Cone Penetrometer (DCP) se llevaron a cabo en tres contenidos de emulsión (3%, 5% y 7%) y en tres condiciones: sin curado e inmersión; sin curar y con inmersión; y con cura e inmersión de 7 días. Los resultados apuntan a una reducción de la capacidad de carga tras la mezcla, aunque las correlaciones entre CBR y DCP han mostrado ajustes más adecuados y mejores coeficientes de determinación (R²), con valores superiores a 0,80. Además, después del curado, hubo una tendencia a que los valores de CBR aumentaran, pero aun así la emulsión demostró ser ineficaz para estabilizar el suelo para su uso en la base y subbase de un pavimento.O modal mais utilizado para o transporte de cargas e pessoas no Brasil é o rodoviário. Entretanto, por vezes, não há disponibilidade de materiais que atendam aos requisitos de pavimentação, enfatizando a necessidade de técnicas de estabilização dos solos para o ajuste do material às especificações desejadas. Assim, o objetivo deste trabalho foi avaliar o comportamento de uma areia siltosa bem-graduada (SM-SW), da cidade de Natal/RN, cujas características são incompatíveis para o uso no pavimento. Esta foi estabilizada com emulsão asfáltica de ruptura rápida (RR-2C). Foram realizados ensaios de Índice de Suporte Califórnia (ISC) e de Penetrômetro Dinâmico de Cone (DCP) em três teores de emulsão (3%, 5% e 7%) e em três condições: sem cura e imersão; sem cura e com imersão; e com cura de 7 dias e imersão. Os resultados apontam uma redução da capacidade de suporte após mistura, embora as correlações entre ISC e DCP tenham apresentado ajustes mais adequados e melhores coeficientes de determinação (R²), com valores superiores a 0,80. Além disso, após a cura, houve uma tendência de aumento dos valores de ISC, mas ainda assim a emulsão mostrou-se pouco eficaz na estabilização do solo para uso na base e sub-base de um pavimento.Research, Society and Development2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/2427410.33448/rsd-v11i1.24274Research, Society and Development; Vol. 11 No. 1; e0711124274Research, Society and Development; Vol. 11 Núm. 1; e0711124274Research, Society and Development; v. 11 n. 1; e07111242742525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/24274/21573Copyright (c) 2022 Lucas Fonseca Fernandes; Bruma Morganna Mendonça de Souza; Osvaldo de Freitas Neto; Fagner Alexandre Nunes França; Olavo Francisco dos Santos Júniorhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessFernandes, Lucas Fonseca Souza, Bruma Morganna Mendonça deFreitas Neto, Osvaldo deFrança, Fagner Alexandre NunesSantos Júnior, Olavo Francisco dos2022-01-16T18:08:18Zoai:ojs.pkp.sfu.ca:article/24274Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:42:53.299308Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
| dc.title.none.fl_str_mv |
Sandy soil stabilization with asphalt emulsion for paving purposes Estabilización de suelos arenosos con emulsión asfáltica para pavimentación Estabilização de solo arenoso com emulsão asfáltica para fins de pavimentação |
| title |
Sandy soil stabilization with asphalt emulsion for paving purposes |
| spellingShingle |
Sandy soil stabilization with asphalt emulsion for paving purposes Fernandes, Lucas Fonseca Rodovias Pavimentação Solo Estabilização Emulsão. Highways Paving Soil Stabilization Emulsion. Carreteras Pavimentación Suelo Estabilización Emulsión. |
| title_short |
Sandy soil stabilization with asphalt emulsion for paving purposes |
| title_full |
Sandy soil stabilization with asphalt emulsion for paving purposes |
| title_fullStr |
Sandy soil stabilization with asphalt emulsion for paving purposes |
| title_full_unstemmed |
Sandy soil stabilization with asphalt emulsion for paving purposes |
| title_sort |
Sandy soil stabilization with asphalt emulsion for paving purposes |
| author |
Fernandes, Lucas Fonseca |
| author_facet |
Fernandes, Lucas Fonseca Souza, Bruma Morganna Mendonça de Freitas Neto, Osvaldo de França, Fagner Alexandre Nunes Santos Júnior, Olavo Francisco dos |
| author_role |
author |
| author2 |
Souza, Bruma Morganna Mendonça de Freitas Neto, Osvaldo de França, Fagner Alexandre Nunes Santos Júnior, Olavo Francisco dos |
| author2_role |
author author author author |
| dc.contributor.author.fl_str_mv |
Fernandes, Lucas Fonseca Souza, Bruma Morganna Mendonça de Freitas Neto, Osvaldo de França, Fagner Alexandre Nunes Santos Júnior, Olavo Francisco dos |
| dc.subject.por.fl_str_mv |
Rodovias Pavimentação Solo Estabilização Emulsão. Highways Paving Soil Stabilization Emulsion. Carreteras Pavimentación Suelo Estabilización Emulsión. |
| topic |
Rodovias Pavimentação Solo Estabilização Emulsão. Highways Paving Soil Stabilization Emulsion. Carreteras Pavimentación Suelo Estabilización Emulsión. |
| description |
Highways are the most used modal for the transportation of cargo and people in Brazil. However, there is usually no availability of soils that meet pavement design criteria, emphasizing the need for soil stabilization techniques for material adjustments within the desired specifications. Therefore, this work aimed to evaluate the behavior of a well-graded silty sand (SM-SW) from the city of Natal/RN, whose characteristics are unsatisfactory for paving. It was stabilized with fast-breaking asphalt emulsion (RR-2C). California Bearing Ratio (CBR) and Dynamic Cone Penetrometer (DCP) tests were performed in three emulsion contents (3%, 5%, and 7%) under three conditions: without curing and without immersion; without curing and with immersion; and with 7 days cure and immersion. The results indicate a reduction in bearing capacity after mixing, even though the correlations between CBR and DCP have presented more adequate adjustments and improved coefficients of determination (R²), with values superior to 0.80. Besides, after the curing process, there was an increase in the CBR values, but the emulsion has still proven to be low effective in stabilizing the soil for use as base and sub-base of a pavement. |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022-01-01 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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https://rsdjournal.org/index.php/rsd/article/view/24274 10.33448/rsd-v11i1.24274 |
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https://rsdjournal.org/index.php/rsd/article/view/24274 |
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10.33448/rsd-v11i1.24274 |
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por |
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por |
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https://rsdjournal.org/index.php/rsd/article/view/24274/21573 |
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https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
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https://creativecommons.org/licenses/by/4.0 |
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openAccess |
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application/pdf |
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Research, Society and Development |
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Research, Society and Development |
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Research, Society and Development; Vol. 11 No. 1; e0711124274 Research, Society and Development; Vol. 11 Núm. 1; e0711124274 Research, Society and Development; v. 11 n. 1; e0711124274 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
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Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
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rsd.articles@gmail.com |
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1797052810309664768 |