Use of Recycled Polyethylene Terephthalate Strips in Soil Improvement
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10706-021-01848-2 http://hdl.handle.net/11449/208695 |
Resumo: | Many studies have investigated polyethylene terephthalate (PET) and polypropylene fibers in soil improvement. However, there is a lack of research using inclusions of polymeric strips taken from recyclable materials, although strips from the reuse of waste have high potential for improving soil characteristics. This study evaluated the effects of the addition of PET strips from recycled bottles of different lengths and contents on sandy and clayey soil resistance. Unconfined compression and direct shear tests were performed in both soils at two different compaction degrees (CD): 95 and 100%. The results of unconfined compression tests showed that the highest strengths were obtained for sandy soil (L = 20 mm; 1.5%) and clayey soil (L = 30 mm; 1.5%). The selection of L = 20 mm; 1.5% was used to mold specimens for the direct shear tests. Analyzing the shear stress x displacement curves (τ x δH) obtained with CD = 100% (for both soils with and without strips), it is noted that the appearance of the obtained curves is quite similar when analyzing the highest applied stresses. An analysis of volumetric variation curves was important to show that the addition of the strips began to modify the behavior of the soil for the highest applied stress levels. The material starts to present more ductile behavior. The inclusion of PET strips was more effective in sandy soil, which presented an increase of 66.4% (CD = 100%) and 55.5% (CD = 95%) in the cohesive intercept. |
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Use of Recycled Polyethylene Terephthalate Strips in Soil ImprovementLateritic soilPolyethylene terephthalate bottlesShear strengthStripsUnconfined compression testMany studies have investigated polyethylene terephthalate (PET) and polypropylene fibers in soil improvement. However, there is a lack of research using inclusions of polymeric strips taken from recyclable materials, although strips from the reuse of waste have high potential for improving soil characteristics. This study evaluated the effects of the addition of PET strips from recycled bottles of different lengths and contents on sandy and clayey soil resistance. Unconfined compression and direct shear tests were performed in both soils at two different compaction degrees (CD): 95 and 100%. The results of unconfined compression tests showed that the highest strengths were obtained for sandy soil (L = 20 mm; 1.5%) and clayey soil (L = 30 mm; 1.5%). The selection of L = 20 mm; 1.5% was used to mold specimens for the direct shear tests. Analyzing the shear stress x displacement curves (τ x δH) obtained with CD = 100% (for both soils with and without strips), it is noted that the appearance of the obtained curves is quite similar when analyzing the highest applied stresses. An analysis of volumetric variation curves was important to show that the addition of the strips began to modify the behavior of the soil for the highest applied stress levels. The material starts to present more ductile behavior. The inclusion of PET strips was more effective in sandy soil, which presented an increase of 66.4% (CD = 100%) and 55.5% (CD = 95%) in the cohesive intercept.Senior Engineer Department of Civil and Environmental Engineering UNESP—São Paulo State University, Av. Luiz Edmundo Carrijo Coube, 14-01, PO BOX 473Senior Engineer Department of Civil and Environmental Engineering UNESP—São Paulo State University, Av. Luiz Edmundo Carrijo Coube, 14-01, PO BOX 473Universidade Estadual Paulista (Unesp)Castilho, Tayane Westermann [UNESP]Rodrigues, Roger Augusto [UNESP]Lodi, Paulo César [UNESP]2021-06-25T11:16:19Z2021-06-25T11:16:19Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/s10706-021-01848-2Geotechnical and Geological Engineering.1573-15290960-3182http://hdl.handle.net/11449/20869510.1007/s10706-021-01848-22-s2.0-85106208197Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGeotechnical and Geological Engineeringinfo:eu-repo/semantics/openAccess2021-10-23T19:02:25Zoai:repositorio.unesp.br:11449/208695Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T19:02:25Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Use of Recycled Polyethylene Terephthalate Strips in Soil Improvement |
title |
Use of Recycled Polyethylene Terephthalate Strips in Soil Improvement |
spellingShingle |
Use of Recycled Polyethylene Terephthalate Strips in Soil Improvement Castilho, Tayane Westermann [UNESP] Lateritic soil Polyethylene terephthalate bottles Shear strength Strips Unconfined compression test |
title_short |
Use of Recycled Polyethylene Terephthalate Strips in Soil Improvement |
title_full |
Use of Recycled Polyethylene Terephthalate Strips in Soil Improvement |
title_fullStr |
Use of Recycled Polyethylene Terephthalate Strips in Soil Improvement |
title_full_unstemmed |
Use of Recycled Polyethylene Terephthalate Strips in Soil Improvement |
title_sort |
Use of Recycled Polyethylene Terephthalate Strips in Soil Improvement |
author |
Castilho, Tayane Westermann [UNESP] |
author_facet |
Castilho, Tayane Westermann [UNESP] Rodrigues, Roger Augusto [UNESP] Lodi, Paulo César [UNESP] |
author_role |
author |
author2 |
Rodrigues, Roger Augusto [UNESP] Lodi, Paulo César [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Castilho, Tayane Westermann [UNESP] Rodrigues, Roger Augusto [UNESP] Lodi, Paulo César [UNESP] |
dc.subject.por.fl_str_mv |
Lateritic soil Polyethylene terephthalate bottles Shear strength Strips Unconfined compression test |
topic |
Lateritic soil Polyethylene terephthalate bottles Shear strength Strips Unconfined compression test |
description |
Many studies have investigated polyethylene terephthalate (PET) and polypropylene fibers in soil improvement. However, there is a lack of research using inclusions of polymeric strips taken from recyclable materials, although strips from the reuse of waste have high potential for improving soil characteristics. This study evaluated the effects of the addition of PET strips from recycled bottles of different lengths and contents on sandy and clayey soil resistance. Unconfined compression and direct shear tests were performed in both soils at two different compaction degrees (CD): 95 and 100%. The results of unconfined compression tests showed that the highest strengths were obtained for sandy soil (L = 20 mm; 1.5%) and clayey soil (L = 30 mm; 1.5%). The selection of L = 20 mm; 1.5% was used to mold specimens for the direct shear tests. Analyzing the shear stress x displacement curves (τ x δH) obtained with CD = 100% (for both soils with and without strips), it is noted that the appearance of the obtained curves is quite similar when analyzing the highest applied stresses. An analysis of volumetric variation curves was important to show that the addition of the strips began to modify the behavior of the soil for the highest applied stress levels. The material starts to present more ductile behavior. The inclusion of PET strips was more effective in sandy soil, which presented an increase of 66.4% (CD = 100%) and 55.5% (CD = 95%) in the cohesive intercept. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T11:16:19Z 2021-06-25T11:16:19Z 2021-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s10706-021-01848-2 Geotechnical and Geological Engineering. 1573-1529 0960-3182 http://hdl.handle.net/11449/208695 10.1007/s10706-021-01848-2 2-s2.0-85106208197 |
url |
http://dx.doi.org/10.1007/s10706-021-01848-2 http://hdl.handle.net/11449/208695 |
identifier_str_mv |
Geotechnical and Geological Engineering. 1573-1529 0960-3182 10.1007/s10706-021-01848-2 2-s2.0-85106208197 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Geotechnical and Geological Engineering |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803046178336538624 |