Importance of the use of PVB material

The use of laminated glass is increasing due to the realization of transparent carrier elements for architectural glazing applications. In laminated glass, two or more layers of glass are bonded to thin thermoplastic intermediate layers to improve the post-breakage characteristics of the glass. After breaking, the residual load capacity of the laminate depends on the mechanical properties of the laminated constituents. The three-point bending tests are presented in laminated glass samples, manufactured with an internal float glass and two external panels of equal tempered glass. Laminated glass specimens of the same cross section were characterized by three different combinations of annealed float and thermally tempered glass layers. In addition, two sets of specimens were constructed with two different intermediate layers that have significantly different mechanical properties. The bending load was applied parallel to the rolling plane (flat loading) and the tests were carried out at room temperature. The post-fault response and failure mechanisms detected are presented and discussed.

Source: https://doi.org/10.1016/j.conbuildmat.2009.09.007

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