Determinación de parámetros físico-mecánicos y de durabilidad en concreto reciclado con residuos de construcción y demolición (RCD)
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Remolina Durán, Jesús Guillermo | 2018-01-19
The construction sector worldwide represents one of the main activities in all society and which
in turn represents a sizable percentage of the generation of tons and tons of waste that are not
adequately treated and therefore generate a high impact environmental damage. The use of
Construction and Demolition Waste as aggregates for concrete contributes one of the great
innovative ideas of recent decades that mitigate this damage and bring about better
environmental development. The objective of this work is to determine and evaluate the
physical-mechanical parameters of concrete mixtures whose natural coarse aggregate is replaced
in different percentages by recycled aggregates obtained from the processing of hydraulic
concrete demA2olition waste from a roadway in the city of Barranquilla. Three (3) distinctive
designs were carried out, replacing 0%, 50% and 100% of the natural aggregate by recycling.
Subsequently, the properties of each of the materials for the preparation of the mixtures, such as
density, absorption, granulometry, relative humidity and specific gravity, were analyzed and
evaluated to evaluate and compare their influence on the behavior of fresh and hardened
concrete. Likewise, with these materials, the three concrete mixtures were made with different
percentages of replacement to manufacture the specimens to perform compression tests in
cylinders and flexure tests in three points in beams, for both with curing days of 7,14 and 28. The
analysis of results was carried out by means of tables and graphs, together with different
statistical and numerical methods to find correlations between the different variables analyzed
and thus be able to reach a clear position regarding the objective of the work and the researchers
found worldwide. In addition to determining the feasibility of using recycled concrete with RCD
aggregates in low transit or other rigid pavement structures.
LEER