Transparent polymer interlayers are usually adopted to laminate glass members dealing with structural roles. Currently, they are also used to realize laminated adhesive connections joining structural glass components (e.g. steel-to-glass connections). Research activities are currently ongoing to investigate the behavior of such joints, made either by a transparent ionomer (SentryGlas® from DuPont) or by transparent silicon (TSSA from DowCorning). The experimental investigations of the bulk material properties of SG and TSSA laminated interlayers are here presented. Uniaxial tensile tests on dumbbell shaped specimens are performed to study the mechanical properties and constitutive law of adhesive materials. The effect of temperature and strain rate are investigated and discussed. The specimens were previously cured to bring the polymeric material in the same state as it is in connections after lamination. Real stresses are calculated taking into account the transversal contraction of the material and the actual cross section of the specimens under large deformations by means of Digital Image Correlation.

The durability of laminated glass is a relevant problem in modern structural engineering. This paper deals with the results of experiments on laminated glass durability focusing on the following impacts: temperature, humidity, UV radiation and combination of these impacts. The purpose of this research is to investigate the aspect of laminated glass durability in the framework of long-term tests. Three different interlayer laminates were used during the experiments: Polyvinyl butyral (PVB), Ethylene vinyl acetate (EVA), DuPont's SentryGlas ionoplast (SG) and 6 mm thick tempered Soda-Lime-Silica Glass. Tests for environmental condition impact and durability of laminated glass are foreseen according to standard (ISO 12543- 4:2011). Bending tests were carried out due to standard (EN 1288-3:2000). Brief graphical comparison of the experimental results is presented in the paper.

This paper presents the results of long term experiments of four point bending test with structural laminated glass plates. For experiments 6 mm thick annealed Soda-Lime-Silica Glass and three different interlayer laminates were used: Polyvinyl butyral (PVB), Ethylene vinyl acetate (EVA), DuPont's SentryGlas (SG). These types of laminates were chosen because there is a wide range of their possible practical application in buildings' constructions. Bending creep tests were carried out by applying the four point bending test model. Applied dimensions of the laminated glass plates and loading scheme are from the standard EN 1288-3. Three specimens were tested with the same interlayer laminated glass plates. Tests were successively carried out at three temperatures: + 20°C, + 30°C, + 40°C. Every test took 24 hours interval at each temperature, so in total one full experiment took 72 hours with one type of interlayer. The deflections at the middle of specimens, volatile displacement between two glass sheets and longitudinal strains at the middle of the laminated plate were measured. In the paper the comparisons of the experimental results between the glass panels with various laminates and at different temperatures are presented.