masterThesis
Aplicação de concreto asfáltico a quente utilizando resíduos da construção e demolição de obras (RCD) em via urbana na cidade de Natal/RN
Fecha
2019-03-25Registro en:
QUEIROZ NETO, Manoel Lindolfo. Aplicação de concreto asfáltico a quente utilizando resíduos da construção e demolição de obras (RCD) em via urbana na cidade de Natal/RN. 2019. 87f. Dissertação (Mestrado em Engenharia Civil) - Centro de Tecnologia, Universidade Federal do Rio Grande do Norte, Natal, 2019.
Autor
Queiroz Neto, Manoel Lindolfo
Resumen
The construction industry is responsible for the high generation of solid waste that
is discarded in nature, contributing to the degradation of the environment. On the other
hand, the construction sector is one of the main components of the Brazilian economy and
its productive chain brings together a set of activities that mobilize more than 12 million
people, about 13% representing the workforce in the country (FIESP, 2017). At the global
level, the building materials industry is expected to grow by two and a half times between
2010 and 2050 (UNEP, 2002). In Brazil, the construction sector is expected to double in
size until the year 2022 (CEBEDS, 2009). It is noteworthy that it is crucial to take
measures aimed at the management of solid waste through cultural and technological
changes, aiming to meet the needs of a society increasingly enlightened and demanding in
relation to the preservation of the environment. This work presents a proposal for the
application of construction and demolition waste (RCD) as recycled aggregates in the
manufacture of asphalt coating, as an alternative to the use of these materials. The work
method employed consisted of the collection of residual material in the company TcPav,
carrying out characterization tests in accordance with the standard standards in the area of
paving in the national scope, besides DRX, FRX and dosage by the Marshall method. Then
an experimental section was made using a market trace, adapted for use with RCD. In this
trait was used recycled aggregate containing gravel 1 and sand replacing the same
aggregate of the natural type in the coating layer. From the proposed experimental program
it was observed that the residual aggregates had a good potential of their use in hot
asphaltic coatings based on the analysis of the specimens under the volumetric parameters,
the Marshall dosage and the experimental section. As for the experimental section, it was
observed that in the initial months of monitoring a detachment of the ceramic aggregates present on its surface was observed. However, such detachment has not compromised to
the point of damaging the coating, so that the asphalt pavement continues to perform
satisfactorily the functionality for the vehicles which travel therethrough.