Materiales de Construcción, Vol 53, No 271-272 (2003)

Recycled construction debris as an aggregates. Production of concrete blocks


https://doi.org/10.3989/mc.2003.v53.i271-272.289

J. G. G. Sousa
Departamento de Engenharia Civil e Ambiental. Universidad de Brasilia, Spain

E. Bauer
Departamento de Engenharia Civil e Ambiental. Universidad de Brasilia, Brazil

R. M. Sposto
Departamento de Engenharia Civil e Ambiental. Universidad de Brasilia, Brazil

Abstract


This paper analyzes the use of recycled construction and demolition debris as aggregate for the construction of concrete blocks to be used in sealing masonry. Initial studies addressed the definition of parameters used in the mix of conventional materials (traditionally used in the production of concrete blocks), involving cylindrical test specimens (100x200 mm), molded with the help of a vibratory table. In addition to these definitions, and based on the mixes showing the best results, a new granulometric range was established, against which the granulometry of the recycled aggregates was adjusted. After the initial studies, concrete blocks were molded with the following dimensions: 100x190x390 mm). Studies have determined the behavior of aggregates in relation to mold humidity specific mass, water absorption, and compression resistance in view of the percentage of recycled debris that composes the total aggregate. For the most part, results suggest that construction and demolition debris can potentially be used in the production of concrete blocks, as well as in other pre-molded artefacts.

Keywords


debris recycling; recycled aggregates; concrete blocks

Full Text:


PDF


Copyright (c) 2003 Consejo Superior de Investigaciones Científicas (CSIC)

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.


Contact us materconstrucc@ietcc.csic.es

Technical support soporte.tecnico.revistas@csic.es