Concrete with recycled aggregates as urban sustainability project

Authors

  • Carlos Bedoya Universidad Nacional de Colombia (Colombia)
  • Luis Dzul Universidad Internacional Iberoamericana (Mexico)

DOI:

https://doi.org/10.4067/S0718-50732015000200002

Keywords:

sustainable construction, inverse mining, recycled concrete, urban ecosystem, integrated project management

Abstract

This article addresses the preparation of a concrete using recycled aggregates obtained from the rubble recovery of concrete and masonry works. The study showssome aspects such as: compressive strength at 3, 7, 14, 28, 56 and 91 days; porosity, ultrasonic pulse speed and carbonation; economic costs compared to aconventional concrete; and a review of the public policies on sustainable construction and the use of rubble, in the city of Medellin, Colombia. For some mixes, thecompressive strength and the ultrasonic pulse speed measurements were approximately the 98% of that of the reference mix. Likewise, the mix prepared with 100%of recycled aggregates showed a difference in the carbonation deepness of only 0.7 mm compared with the mix of reference for a simulated age of 27 years. Theresults obtained with the replacement of natural coarse and fine aggregates in 25%, 50%, and 100%, and the advance in the political-administrative guidelines of thecity in the last eleven years, allow deducing the possibility of preparing structural and non-structural concretes for massive use in the construction area.

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Author Biography

Carlos Bedoya, Universidad Nacional de Colombia (Colombia)

Arquitecto Constructor, Magíster en Hábitat, Candidato a Doctor en Proyectos. Profesor Asociado adscrito a la Escuela de Construcción de la Facultad de Arquitectura. Coordinador de la línea de investigación en Construcción Sostenible.

Published

2015-08-31

How to Cite

Bedoya, C., & Dzul, L. (2015). Concrete with recycled aggregates as urban sustainability project. Revista Ingeniería De Construcción, 30(2), 99–108. https://doi.org/10.4067/S0718-50732015000200002

Issue

Section

Original Research