Mechanical and Microstructural Properties of Environmentally Friendly Concrete Partially Replacing Aggregates with Recycled Rubber and Recycled PET

Authors

  • Jheny Vallejos Universidad Señor de Sipan
  • Manuel Montenegro Universidad Señor de Sipan
  • Sócrates Muñoz Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas
  • Juan García Universidad Señor de Sipan

DOI:

https://doi.org/10.5755/j01.sace.36.3.33836

Keywords:

rubber, ecological concrete, mechanical and microstructural properties, PET

Abstract

Today, waste generation is a worldwide problem, where the major source of waste is generated by worn-out tires and Polyethylene Terephthalate (PET) bottles. Therefore, as a way to provide an ecological disposal and reduce the environmental impact, the feasibility of producing ecological concrete (EC) with recycled rubber (RB) and PET as substitutes for natural aggregates is explored, determining their physical, mechanical and microstructural properties. This experimental study considered the replacement of fine aggregate with RB at 1%, 4%, 7%, 10%, 20% and 30%, and the optimum content of coarse aggregate plus the replacement of coarse aggregate with PET at 1%, 5%, 10% and 15%. The results showed that the optimum percentage of RB was 1%, which, when combined with PET, resulted that the design with 1% RB+ 1% PET was the optimum replacement combination, increasing 10% in bending, 1% in compression and for tension it decreased by 11%, in turn with the XRD test quartz and different aluminosilicates were found, such as portlandite and by SEM-EDS it was possible to visualize polymer flakes embedded in the analyzed fragment. It is concluded that RB and PET can be viable for the production of EC only if low percentages of replacement by natural aggregates are used.

Author Biographies

Jheny Vallejos, Universidad Señor de Sipan

Bachelor in Civil Engineering

Manuel Montenegro, Universidad Señor de Sipan

Bachelor in Civil Engineering

Sócrates Muñoz, Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas

Civil Engineer graduated from the Universidad Nacional Pedro Ruiz Gallo Lambayeque in 2006, with 11 years of experience in execution of civil works and production of pre-fabricated and prestressed and 13 years of collegiate, with a Master's degree in Earth Sciences with Mention in Geotechnics graduated from the Universidad Nacional de San Agustin Arequipa, with a Diploma in Applied Geology Specialization in Mining by the Mining Chamber of Peru. My main values are loyalty, responsibility, companionship, punctuality and the desire to improve. Former undergraduate professor in the courses of Soil Mechanics, Fluid Mechanics, Geology at the Universidad Catolica San Pablo, Universidad Nestor Caceres Velasquez, Universidad Alas Peruanas, Former Postgraduate Professor at the Universidad Nestor Caceres Velasquez in the course of Soil and Rock Mechanics, Professor at the Universidad Señor de Sipan.

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Published

2024-10-31

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Section

Articles