Samenvatting
In this study, the authors present Buoycrete, a new material and work method invented by the company
Boskalis. “Buoycrete” is a new cement mixture and work method. This mixture and the work method
related to this material are developed by Boskalis and are patented in 2017[1]. The material is a
lightweight concrete mixture that is ‘neutrally buoyant’ and non-dissolvable. The concrete is intended
to be used under water. The neutral buoyancy makes that the concrete does not sink or float. In other
words, within the cement mixture under water, right after application, there is no resultant vertical force
apparent because of the neutral buoyancy. The cement slurry will be kept in place only by the internal
cohesion of the Buoycrete slurry itself. This allows for fast and flexible adjusting of the concrete shape
under water before the concrete cures. The unique cement-based grout opens up a wide array of possible
application areas and markets, especially since application equipment, mixing equipment and curing
characteristics are analogue to normal cement mixtures. Currently, there are no comparable light-weight
cement mixtures available on the market. This paper will start with an overview of concrete structures
in combination with fabrics and will present the structural behavior, construction methods and
applications of Buoycrete. It demonstrates that Buoycrete combined with fabric formwork creates new
possibilities for the realization of façade elements, shell structures and other free forms.
Boskalis. “Buoycrete” is a new cement mixture and work method. This mixture and the work method
related to this material are developed by Boskalis and are patented in 2017[1]. The material is a
lightweight concrete mixture that is ‘neutrally buoyant’ and non-dissolvable. The concrete is intended
to be used under water. The neutral buoyancy makes that the concrete does not sink or float. In other
words, within the cement mixture under water, right after application, there is no resultant vertical force
apparent because of the neutral buoyancy. The cement slurry will be kept in place only by the internal
cohesion of the Buoycrete slurry itself. This allows for fast and flexible adjusting of the concrete shape
under water before the concrete cures. The unique cement-based grout opens up a wide array of possible
application areas and markets, especially since application equipment, mixing equipment and curing
characteristics are analogue to normal cement mixtures. Currently, there are no comparable light-weight
cement mixtures available on the market. This paper will start with an overview of concrete structures
in combination with fabrics and will present the structural behavior, construction methods and
applications of Buoycrete. It demonstrates that Buoycrete combined with fabric formwork creates new
possibilities for the realization of façade elements, shell structures and other free forms.
| Originele taal-2 | Engels |
|---|---|
| Titel | Buoycrete, a light-weight concrete |
| Pagina's | 1-15 |
| Aantal pagina's | 15 |
| Status | Gepubliceerd - 19 sep. 2022 |
| Evenement | 13th Annual Symposium of International Association for Shell and Spatial Structures - China, Beijing, China Duur: 19 sep. 2022 → 23 sep. 2022 Congresnummer: 13 http://www.iass2022.org.cn/index.html http://www.iass2022.org.cn/ |
Congres
| Congres | 13th Annual Symposium of International Association for Shell and Spatial Structures |
|---|---|
| Verkorte titel | IASS 2022 |
| Land/Regio | China |
| Stad | Beijing |
| Periode | 19/09/22 → 23/09/22 |
| Internet adres |
Trefwoorden
- Buoycrete, floating concrete, neutrally buoyant concrete, light weight concrete, ductility, membrane moulding, freeform design, extrusion.