Berkeley researchers develop 3D cement printing

Berkeley-Bloom

The Ronald Rael research team, Professor of architecture at the University of California, Berkeley, has unveiled the results of its work in 3D printing.
While China print houses to the chain, U.S. researchers have explored new cements to improve decisively the 3D printing both in terms of cost, speed printing, but quality. A new breakthrough in 3D printing.

An alternative to the ‘contour crafting’ for printing concrete

With their frame of 3D printing, Chinese Winsun Decoration Engineering, but also Slovenian BetAbram can print the walls of a house in a few dozen hours. They exploit the ‘Contour Crafting’ technique, drawing the contours of the walls with quick-setting concrete. The method has the advantage of being able to climb walls whose resistance is similar to that of conventional concrete wall. In addition, it is possible to fill the structure produced, ask for reinforcements.With their portal of 3D printing, Chinese Winsun Decoration Engineering, but also Slovenian BetAbram can print the walls of a house in a few dozen hours. They exploit the ‘Contour Crafting”technique, drawing the contours of the walls with quick-setting concrete. The method has the advantage of being able to climb walls whose resistance is similar to that of conventional concrete wall. In addition, it is possible to fill the structure produced, ask for reinforcements.

Printed concrete elements are carefully bolted to form the structure.

Printed concrete elements are carefully bolted to form the structure.

Ronald Rael research project uses cement, fibre and polymer to print the elements of structure. The level of precision of the technique is de facto far superior. In terms of 3D printer, the researcher has relied on 11 ‘print farm’ 3D printers of the University of California, Berkeley. Only items of low dimensions were produced. For the structure of 2 m height for 3 m 70 60 aside, it took bolt not less than 840 pieces. More an exercise in puzzle as an industrial way of producing buildings.
This project was carried out with the SRI (Siam Research and Innovation Co. Ltd.), WCS (research and development division of Siam Cement Group) cement Thais who provided the cement and Entropy Resins for polymer.

Translation : Bing Translator

Source : “UC Berkeley unveils first-of-its-kind 3-D-printed cement structure”, UC Berkeley press release, March 6, 2015

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