Super-light SL-Deck elements with fixed end connections

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Super-light structures combining light and strong concrete are invented by the author at the Technical University of Denmark and commercialized by the spin-out company Abeo Ltd.
The first product is the SL-Deck element that represents a number of strong improvements to the building industry among which improved sound insulation, low weight, low CO2 emission, 4 hour fire resistance, improved flexibility with respect to holes, services, curved edges, conical shapes, cross-reinforcements, included beams and edge stringers, balcony solutions, hung down elements, leaf-connections, and long spans due to low weight and due to possibilities of continuous elements and fixed end connections.
A new machine is constructed producing the elements and BIM software is developed optimizing the structures, the production, and the logistics and running the machine.
New production lines are established and a number of buildings are made from 2014 applying the deck element.
The paper describes the deck element and experiences from implementing the technology and innovative details from the first building projects are presented.
All the above mentioned benefits are applied to a wide extent in the first building projects leading to considerable savings of time and costs and opening up new possibilities for architects and users.
Furthermore, the paper describes full-scale test results with new fixed end connections between decks and walls and between decks and columns in facades giving more possibilities to applications as for example placement of columns independent on deck element subdivision and avoiding beams in facades.
Original languageEnglish
Title of host publicationProceedings of Fib Symposium 2015
Number of pages9
Publication date2015
Article number15
Publication statusPublished - 2015
EventFib Symposium 2015 : Concrete - Innovation and Design - Copenhagen, Denmark
Duration: 18 May 201520 May 2015


ConferenceFib Symposium 2015
Internet address


  • Super-light structures
  • Deck elements
  • Flexibility
  • Span width
  • Fixed end connections
  • Sound insulation
  • Fire resistance

Cite this

Hertz, K. D. (2015). Super-light SL-Deck elements with fixed end connections. In Proceedings of Fib Symposium 2015 [15]