BASF applications technicians are demonstrating 3D-printed formworks and concrete cast parts at the first International Conference on Concrete and Digital Fabrication, in Zürich, Switzerland, from September 9 to 13, 2018.
Visitors will be able to see how 3D-printed formwork can be used in practice, thanks to an innovative system and adapted concrete materials. The concrete additives and grouts, under the brand name of Master Builders Solutions, are optimised for the filling of 3D-printed formworks which can already be used on projects today.
3D-printing is an additive manufacturing process in which workpieces are built up in layers in a computer-controlled process. This way, highly complex shapes can be generated, including formworks for concrete casting.
With 3D-printing, formworks are fabricated for walls or facades with integrated patterns which otherwise could not be produced conventionally or only with considerable effort.
In a validation project, Heidelberg-based BASF 3D Printing Solutions together with BASF’s Construction Chemicals division and the Innovation Department NOWlab of Berlin-based BigRep have demonstrated technical feasibility of a series of concrete formworks with the aid of large-format 3D printing.
There are almost no limits to the possible applications of this technology, especially if the formwork is to provide more complex shapes rather than the relatively simple today’s geometries.
“Apart from the countless possibilities of templates, 3D-printed formwork can also be used for irregular organic shapes or difficult connecting elements of the type we need in concrete construction,” said Sebastian Dittmar, Head of Applications Technology Germany with Master Builders Solutions.
“The facade element is scanned and can then be precisely reproduced by the 3D-printer. This way, it is possible to produce almost any shape you need.”