Among the different types of raw materials, the packaging glass recycling chain has proven to be an
effective model. From 1974, driven by the glass industry, container glass recycling (bottles, jars …) has
been a great success. Recycling rates of this kind of hollow glass achieve now an efficiency of more
than 70 %. Other types of glass compositions, often polluted with heavy metals, pose a tougher problem.
This is particularly the case of Cathode Ray Tubes (CRT) found in TV screens and monitors or
Soda Lime Silicate glass (SLS) from the automotive industries.
Over a number of years, recycling processes have been developed to produce glass foams [2,3].
While these materials are mostly marketed for thermal and/or acoustic insulation, recent works have
shown that those foams could be used in innovative applications (photocatalyst support for hydrocarbon
degradation) [2]. In this study, we will focus on the microwave properties of those recycled glass
foams for potential new uses in the telecommunication area