AYUDA
Enviado por alexandravalenc • 2 de Febrero de 2013 • Informe • 369 Palabras (2 Páginas) • 268 Visitas
posible aplicación es el de utilizar
Fibras de PET como refuerzo para el hormigón para mejorar su resistencia a la tracción
Los resultados muestran un nivel de alta adherencia entre las fibras de PET y hormigón
con el objetivo adicional de utilizar las barras de PET redondos o planos (o redes
en caso de placas y losas) en sustitución de refuerzo de acero
con el resultado importante para evitar los problemas de corrosión y reducir
el deterioro de estructuras de hormigón
The problem of recycling waste materials of various kinds, is,
and will be, undoubtedly, one of the problems that will most afflict
the society in the future and that we must address and resolve in
all possible ways.
It is necessary that the researchers will find solutions also original, imaginative and brilliant to the reuse of the waste. With the
scarcity of space for landfilling and due to an ever increasing cost,
the attention is towards the reuse of waste as alternative to disposal. Research is always more interested in the use of such products in the concrete mix [1]. This makes the concrete more
economic and, at the same time, there is a reduction of the problem
of the waste.
In the literature there are many applications of plastics for
structural materials [2,3]. The development of these new materials
utilizing recycled plastics is important both for building and plastic
recycling industries. Of course these new materials should be subjected to testing before practical application.
Plastics are largely utilized and therefore contribute to an ever
increasing of the solid waste volume. Among the plastic waste,
polyethylene forms the largest fraction, followed by polyethylene
terephthalate, most known as PET. The last is obtained in large
quantity from plastic bottles utilized as containers of beverages
and mineral water.
In Table 1, a description of PET and its more common uses are
reported.
Nowadays, unfortunately, the recycling rate of PET bottles is
much less than the sales of virgin PET production for common uses.
This gap is dramatically increasing, pushing towards finding a solution of this problem and a higher recycle of PET.
Particular interest is stirring, at present, the use of fibers obtained from waste PET bottles. A possible application is to utilize
PET fibers as reinforcement for concrete to improve its tensile
strength. Concrete, as it is known, is a material with good compressive strength but low tensile strength. This reduced tensile
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