Transparent and strong - bonded joints with acrylates

Research output: Contribution to book/conference proceedings/anthology/reportConference contributionContributed

Abstract

Today's architecture still shows a growing desire for "demateriatised" building envelopes and components. Therefore, glass is widely used in facades. To achieve even greater transparency, engineers and architects are faced with the challenge of having to design nearly invisible connections for this brittle material. Acrylates permit transparent connections with a high optical quality.

During a research project the lnstitute of Building Construction has already examined the performance of light- and UV-curing acrylates in glass constructions in which different adhesives have been tested. A special focus was given to static and dynamic stress of the lamination, the strengths of the different adhesive samples and the ageing resistance of the joints. These adhesives are analysed both generally as bulk material and in applications as a joint between glass and metaL The use of dumb-bell specimens is recommended to analyze the material behaviour under a variety of influential factors such as temperature and testing speed.
A matter of particular interest was the testing of in situ specimens. To determine the material properties of bonded joints, different specimens with varying geometries can be used. In case of glass construction configurations, the butt-bonded hollow cylinder is particular suitable. The construction had to be modified for joints connecting glass components. Constructions having punctually bonded joints are tested to demonstrate the potential use of acrylic joints in glass treatments. Some components are exposed to natural weathering in order to examine the affects of ageing on the adhesive.

Details

Original languageEnglish
Title of host publicationGLASS | FACADE | ENERGY
EditorsJens Schneider, Bernhard Weller
Pages199-211
Publication statusPublished - 2010
Peer-reviewedNo

Symposium

TitleEngineered Transparency 2010
SubtitleInternational conference about glass, facade and solar energy at glasstec
Duration29 - 30 September 2010
Website
Degree of recognitionInternational event
LocationMesse Düsseldorf
CityDüsseldorf
CountryGermany