Browsing by Author "Stiti, N."
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Item Elaboration and characterization of a cellular glass based cullet loaded with carbon fibers(Elsevier, 2015) Benhaoua, F.; Ayadi, A.; Stiti, N.; Lamri, Y.; Ratni, H.Item Elaboration and characterization of a foam glass based on cullet with addition of soluble silicates(2010) Ayadi, A.; Stiti, N.; Benhaoua, F.; Boumchedda, K.; Lerari, Y.Item Elaboration and characterization of acellular glass based culletloaded with carbon fibers(Elsevier, 2015) Benhaoua, F.; Ayadi, A.; Stiti, N.; Lamri, Y.; Ratni, H.The foams glass whose porosity is very important, are counted among the new glass products that meet certain desired comfort needs in the particular building area (thermal and acoustic insulation). The objective of this study is to determine the influence of the carbon fibers addition influence on the porosity, the thermal insulation and dielectric loss of foams glass prepared by sintering at 800 °C, which opens the way to foam glass many possibilities for industrial to extend their opportunities that are very varied from thermal insulation to electromagnetic waves absorption. The carbon fibers addition used for this study is 1, 2, 3.5 and 5 wt% in relation to the foam glass load. Physico-chemical analysis techniques such as SEM-EDS, porosity, thermal insulation, differential thermal analysis, and dielectric tests have been used for the foams glass characterization. The obtained microstructure results clearly show that the 5 wt% carbon fibers addition increases the foam glass porosity which leads to low thermal conductivity (λ=0.0281 W/m°C) and increases its thermal insulating capacity. Furthermore the specific dielectric properties as real permittivity (ε'=2.7619) and high dielectric loss (tan δ=0.02969) favor the use of these glass filled foams with carbon fibers in the electromagnetic waves microwave absorption in the weakest working frequencies (mobile phones and Wi-Fi). © 2015 Elsevier B.V. All rights reservedItem Elaboration and characterization of foam glass based waste Asian(2011) Ayadi, A.; Stiti, N.; Benhaoua, F.; Lerari, Y.; Benzerg, R.; Legendre, L.The porous glass ‘foam glass’ is considered as the new glass products fulfill certain requirements in the building industry in particular (thermal and acoustic insulation). The production of foam glass based waste glass plays an important role in environmental protection and also gains in energy. As part of present work, we seek to improve the properties of glass to obtain a building material lighter with excellent insulation properties. The properties of foam glass depend on the porosity and morphology. The present work devoted to analyze the microstructure of the glass produced by scanning electron microscopy and optical microscopy to be more precise on the size and shape of pores constitute this materialItem Gravimetric and differential thermal analysis of cullet-based glass foams(Trans Tech Publications, 2014) Ayadi, Azzedine; Benhaoua, F.; Le Gendre, Laurent; Benzerga, Ratiba; Stiti, N.Item Preparation and characterization of foam glass based waste(2011) Stiti, N.; Ayadi, A.; Lerabi, Y.; Benhaoua, F.; Benzerga, R.; Legendre, L.