3D concrete printing allows development of the most challenging shapes
The digitalisation of construction processes is ushering in a new era for architects and property developers. 3D concrete printing releases designers from the limitations of the right angle and previously inconceivable architecture becomes possible. It means dynamic curves and futuristic interlinked structures can be printed directly and efficiently from digital plans. Homogeneous character 3D printing not only allows complex shapes to be realised economically, Sika technology allows the printing of homogeneous concrete.
As Didier Lootens, Head of Material Physics at Sika, explained: “Because the mortar is mixed in the print head, it has a uniform consistency when it is applied. As a result, structures can be produced which exhibit the same character throughout.” The colour also remains consistent - assuming that is what is wanted - as concrete offers more than just a range of shades of grey.
Adding pigments makes it possible to insert coloured concrete into buildings under construction. This can be achieved efficiently with 3D printing, as the colours can be accurately controlled by metering pumps. Even precise changes of colour are possible.
The formwork-smooth surface finishes which characterise traditional concrete will also be achievable with 3D printing, allowing all types of subsequent processes including plastering to be undertaken.
Whether it’s extravagant shapes, precision-curing, or colours to customers’ specifications, Sika now has an industrial product which meets the high material requirements expected of concrete.
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