Effect of Fibres Addition On The Electrical And Thermal Properties of Recycled Rubber Membranes

Author(s): J. Norambuena-Contreras(1), J. L. Concha(1), R. Muñoz(2) and E. Baradit(2)
Paper category: Proceedings
Book title: Proceedings of the 71st RILEM Annual Week & ICACMS 2017,Chennai,India, 3rd -8th September 2017
Editor(s): Manu Santhanam
Ravindra Gettu
Radhakrishna G. Pillai
Sunitha K. Nayar
ISBN: 978-2-35158-196-4
ISBN: 978-2-35158-190-2 (Set)
e-ISBN: 978-2-35158-191-9:
Publisher: Published by RILEM Publications S.A.R.L.
Publication year: 2017
Pages: 604-613
Total Pages: 10
Language : English

Abstract: This paper was prepared in the frame of a research project about the development of new
sustainable construction materials based on recycled rubber powder from shredded End of
Life Tyres (ELTs). In this context, this paper presents the main results of an experimental
study carried out to evaluate the influence of fibres addition on the electrical, thermal and
microwave heating properties of the new recycled rubber membranes. With this purpose, four different recycled membranes with the same rubber powder gradation, but with four different percentages of electrically conductive fibres (steel wool) have been manufactured.
Membranes have been studied by using different non-destructive tests including ultrasonic
pulse test, electrical resistivity, thermal conductivity, thermographic analysis and microwave
heating methods. The main results showed that the steel wool fibres in the recycled rubber
membranes produced an improvement on the thermal conductivity, electrical resistivity and
microwave heating properties. As conclusion, 1% vol/rubber was the optimal content of
fibres that showed an improvement of the electrical and thermal behaviour of membranes.
Finally, it was proven that the rubber membranes allow to keep radiant heat, meaning that
these recycled membranes could be used for the development of innovative construction
materials with self-healing and energy harvesting purposes.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00