Prior to arranging the different cullet types inside the mould, a simple two step test showing the viscosity and density differential between the mixed glasses is made at the selected top temperature, as seen in Fig. The clear glass in this case diffuses throughout the beam’s mass, leading to a global improvement of the properties. These additional specimens serve to investigate if the pure/weak glass interface is a stress inducing factor that can lead to component failure.ĪGC Clear pure cullet mixed with contaminated Maltha Car windshields cullet (Flexural strength = 41 MPa). Additional specimens are produced with localized reinforcement at the beam’s side surface, exposing in this manner both the pure and weak glass qualities to the zone of maximum tensile stress. In this combination, a localized reinforcement at the beam’s bottom surface is achieved. Addressing the above uncertainties, this work studies a total of 64 silicate-based glass specimens, prepared in 20 * 30 * 350 mm beam size, either by kiln-casting at relatively low forming temperatures (970–1120 \(^)\). However, the lack of engineering, production and quality control standards for cast glass and the intertwined ambiguities over its mechanical properties-particularly due to the variety in chemical compositions and the lack of understanding of the influence of flaws occurring in the glass bulk-act as an impediment to its wide-spread application. Cast glass has great potential for diverse load-bearing, architectural applications through casting, volumetric glass components can be made that take full advantage of glass’s stated compressive strength.
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