Research fields

  • Glass columns
  • Transparent Adhesive Bonding for Load Bearing Glass Structures
  • Glass brick masonry
  • Embedded Laminated Point Connections

Transparent Adhesive Bonding for Load Bearing Glass Structures

Glass load-bearing structural elements are currently used more and more often, but due to the brittle fracture of glass, it is necessary to design these structures with sufficient reliability. Therefore, it is necessary to pay attention to the joints and construction details. Adhesive joints have a number of advantages over mechanical connectors commonly used in construction. Adhesives can provide more uniform stress distribution along the connection, it does not weaken the bonded material and eliminates thermal bridges. The project is focused on the treatment of the glass surface with electric plasma to improve the adhesion at elevated temperature with respect to ageing of adhesive bonding due to the environment. Mechanical properties, safety and reliability of adhesive joints depend on quality of workmanship of joint, cohesive strength, adhesion of glue to the substrate and resistance to ageing (durability).

Schema of experimental testing (left), photo of experimental testing (right)
3M adhesive specimen with adhesive failure mode (left), Polycol adhesive specimen with glass failure (right)

Full scale experiments of glass beams with adhesive joints will be prepared for selected adhesives to verify the mechanical behaviour of adhesive joints in real structural elements. Simply supported beam with the span 1.4 m will be made from triple layered laminated toughened glass, height of the beam should be around 250 mm. An adhesive joint will be created in the mid-span of the beam using one of the tested transparent adhesive.

Links to the papers: