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Reinforcing Effect of Polypropylene Waste Strips on Compacted Lateritic Soils
Article

Effect of Recycled Polyethylene Terephthalate Strips on the Mechanical Properties of Cement-Treated Lateritic Sandy Soil

1
Department of Civil and Environmental Engineering, São Paulo State University (UNESP), Av. Engenheiro Luiz Edmundo Carrijo Coube 14-01, Bauru, SP 17033-360, Brazil
2
Department of Civil Engineering, Federal University of Sao Carlos (UFSCar), Rodovia Washington Luiz, São Carlos, SP 17033-360, Brazil
*
Author to whom correspondence should be addressed.
Sustainability 2020, 12(23), 9801; https://doi.org/10.3390/su12239801
Received: 23 October 2020 / Revised: 12 November 2020 / Accepted: 13 November 2020 / Published: 24 November 2020
The civil engineering construction industry is nowadays one of the largest consumers of natural resources. Therefore, the proposal of using alternative materials that seek to reduce waste production or the use of previously generated waste is becoming increasingly necessary. This paper evaluated the effect of recycled polyethylene terephthalate (PET) strips on the mechanical properties of a cement-treated lateritic sandy soil. Unconfined compression strength (UCS) tests were conducted in natural and PET strips mixtures in different strips lengths and contents. In addition to UCS tests, compaction tests were also conducted in order to analyze the effect of these inclusions on the properties of a lateritic sandy soil. Lastly, direct shear tests were conducted on natural soil-strip, soil-cement, and soil-cement-strip composites using optimum UCS results. The addition of strips to the soil-cement composite showed an increase in the soil cohesion parameter. The inclusion of strips also provided a more ductile behavior to the soil, presenting greater deformations with fewer stress peaks. Results showed that the recycled strips’ inclusion in soil-cement can provide a material with high strength, ductility, and a highly sustainable alternative. View Full-Text
Keywords: recycled pet strips; lateritic soil; cement; composite; uniaxial tests; shear strength recycled pet strips; lateritic soil; cement; composite; uniaxial tests; shear strength
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MDPI and ACS Style

Silveira, M.R.; Lodi, P.C.; Correia, N.d.S.; Rodrigues, R.A.; Giacheti, H.L. Effect of Recycled Polyethylene Terephthalate Strips on the Mechanical Properties of Cement-Treated Lateritic Sandy Soil. Sustainability 2020, 12, 9801. https://doi.org/10.3390/su12239801

AMA Style

Silveira MR, Lodi PC, Correia NdS, Rodrigues RA, Giacheti HL. Effect of Recycled Polyethylene Terephthalate Strips on the Mechanical Properties of Cement-Treated Lateritic Sandy Soil. Sustainability. 2020; 12(23):9801. https://doi.org/10.3390/su12239801

Chicago/Turabian Style

Silveira, Maitê R., Paulo C. Lodi, Natália d.S. Correia, Roger A. Rodrigues, and Heraldo L. Giacheti. 2020. "Effect of Recycled Polyethylene Terephthalate Strips on the Mechanical Properties of Cement-Treated Lateritic Sandy Soil" Sustainability 12, no. 23: 9801. https://doi.org/10.3390/su12239801

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