bachelorThesis
Degradação de geotêxteis por radiação ultravioleta: revisão da literatura
Fecha
2019-06-18Registro en:
LAMPREIA, Renan Pereira. Degradação de geotêxteis por radiação ultravioleta: revisão da literatura. 2019. 20f. Trabalho de Conclusão de Curso (Graduação em Engenharia Civil ) - Centro de Tecnologia, Departamento de Engenharia Civil, Universidade Federal do Rio Grande do Norte, Natal, 2019.
Autor
Lampreia, Renan Pereira
Resumen
Geotextiles have several applications in civil engineering works, such as earthworks, drainage
services and reinforcement of structures. Its increasing use is related to the technical advantages
provided, of ease and speed of execution, besides the economic advantages, due to the low cost
and environmental benefits because they have low impacts in the environment, representing an
excellent alternative to the traditional constructive methods. These materials tend to exhibit
sensitivity to degrading agents, such as ultraviolet radiation. Under the action of this radiation,
the geotextiles can undergo changes in their polymer structure, presenting failures in service
and compromising their operation. Alterations of staining, decrease of thickness,
depolymerization and decrease in the tensile strength are consequences from degradation by
ultraviolet rays. In view of the increase in the use of these polymeric materials, under conditions
of exposure to the medium, it is evident the need to investigate the ability of these geosynthetics
to withstand the conditions of exposure to ultraviolet rays and other climatic conditions to which
they are submitted. In order to obtain results, analyzes and observations regarding the level of
degradation that determined geotextile can reach, this article presents several cases of geotextile
degradation studies by ultraviolet radiation under different exposure conditions in different
geographical locations. In this way, it is possible to infer the best geotextiles to be applied in a
certain place, in order to attend the functionalities of the work and to support well to the
degrading agents, during its life.