Evaluation of behavior in soil field reinforced with PET fibers for mat foundations

Authors

DOI:

https://doi.org/10.18830/issn.1679-0944.n29.2021.03

Keywords:

Polyethylene terephthalate fiber; Load capacity; Displacements.

Abstract

Currently, the use of mat foundations in small buildings has intensified, however, this alternative cannot be used in soils with low load capacity. An alternative is to promote an improvement or reinforcement of the base layer. For this purpose, this work is an evaluation of the mechanical behavior of a fine sandy soil reinforced with terephthalate (PET) fibers for use as a mat foundations base. Reinforcement models performed in the field with layers of 300 mm thick compacted soil were used in the optimal conditions of compaction reinforced with 1% PET fibers. Performance evaluation was performed using static load tests on a 340 mm diameter circular plate. Tests were carried out in three conditions: soil reinforced with fiber, soil compacted without reinforcement and natural soil. The results showed that the addition of fiber improves the load capacity, increases the rigidity, decreasing the displacements for the service loads, and the rupture surface mobilizes a larger region. It is concluded that the addition of fiber improves the performance of the base layer, presenting a gain in load capacity, however, this gain occurs for large displacements.

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Author Biographies

João de Freitas, Universidade Estadual de Maringa

Professor temporário em estrutura/ Universidade Estadual De Maringá (UEM) ”“ CTC ”“ DTC /Universidade Estadual de Maringá (UEM)

Paula Polastri, Universidade Estadual de Maringá

Engenheira Ambiental / Mestra em Engenharia Urbana e Doutoranda em Engenharia Química. Pós-graduação em Engenharia Química (PEQ) / Departamento de Engenharia Química (DEQ) / Universidade Estadual de Maringá (UEM)

Generoso De Angelis Neto, Universidade Estadual de Maringá

Graduação em Engenharia Civil. Mestrado em Geotecnia/ Doutorado em Engenharia de Construção Civil e Urbana. Professor Titular em Construção Civil - Gestão de Resíduos da Construção Civil/ Departamento de Engenharia Civil da Universidade Estadual de Maringá (DEC)/ Universidade Estadual de Maringá (UEM).

Antonio Belincanta, Universidade Estadual de Maringá

Graduação em Engenharia Civil pela Universidade Federal do Paraná (1973), graduação em Administração de Empresas pela Pontifícia Universidade Católica do Paraná (1973), mestrado em Engenharia de Solos pela Universidade de São Paulo (1985) e doutorado em Engeharia Civil Geotecnia S Carlos pela Universidade de São Paulo (1998). Professor associado da Universidade Estadual de Maringá/ Departamento de Engenharia Civil da Universidade Estadual de Maringá (DEC)/ Universidade Estadual de Maringá (UEM).

Jeselay Hemetério Cordeiro dos Reis, Universidade Estadual de Maringá

Graduação em Engenharia Civil pela Universidade Federal do Rio Grande do Norte (1997), mestrado em Geotecnia pela Universidade de São Paulo (2000) e doutorado em Geotecnia pela Universidade de São Paulo (2006). Professor adjunto da Universidade Estadual de Maringá/ Departamento de Engenharia Civil da Universidade Estadual de Maringá (DEC)/ Universidade Estadual de Maringá (UEM).

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Published

2021-02-09

How to Cite

de Freitas, J., Polastri, P., De Angelis Neto, G., Belincanta, A., & Hemetério Cordeiro dos Reis, J. . (2021). Evaluation of behavior in soil field reinforced with PET fibers for mat foundations. Paranoá, 14(29). https://doi.org/10.18830/issn.1679-0944.n29.2021.03

Issue

Section

Technology, Environment and Sustainability

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