Effect of Regrinding on the Edge Strength of Tempered Glass

Laminated glass can have an edge displacement of the individual glass panes resulting from the lamination process. With regard to visible or exposed edges, this displacement reduces the optical quality of the glass component. The regrinding of the edge after lamination compensates the displacement and thus creates a highly transparent surface. However, regrinding tempered glass leads to a reduction of the compression zone near the edge and bears the risk of reducing the load‐ bearing capacity. The degree of this reduction was experimentally determined and evaluated at the Institute of Building Construction with the aid of both single‐glass panes and structural component tests.