A pattern derived from traditional Thai flower patterns is mapped onto the surface of the structure that creates a figural pattern and stunning visual effect of light, shade and shadow on the exterior and interior. From the exterior the pattern is most striking from a distance or when viewed through the screen of a digital camera, which creates a surprise upon photographing the structure from up close.
Each block is printed using a farm of 11 powder 3D printers with a special cement composite formulation comprised chiefly of iron oxide-free portland cement. Iron oxide imparts a gray color to cement, and its removal makes this print much lighter. The blocks are assembled into 16 large, lightweight prefabricated panels, which could be assembled in just a few hours.
Also, 3D printed cement requires no formwork and produces no waste and the support material can be reused to produce more blocks. Coupled with portland cement is an ecologically derived UV resistant polymer that reduces the greenhouse gas emissions from production of resins by 50% over conventional petroleum based epoxies that uses plant-based materials that do not compete with food sources or displace food-based agriculture. Each 3D printed block is enumerated to designate the blocks position in the overall structure. Rather than a set of blueprints, a spreadsheet that demonstrated the position of a block, was used in constructing Bloom, and each block is assembled and held in place using stainless steel hardware
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Project Date: 2015
Project Team: Ronald Rael, Virginia San Fratello, Kent Wilson, Alex Schofield, Sofia Anastassiou, Yina Dong, Dr. Stephan Adams, Alex Niemeyer, Ari Oppenhiemer, Reem Makkawi, Steven Huang.
Video Documentation/Editing: Sofia Anastassiou
Additional Project Information: Bloom was made possible by a partnership with the PrintFARM (Print Facility for Architecture, Research, and Materials) at the University of California Berkeley College of Environmental Design and the Siam Cement Group (SCG Thailand). Additional project support was made through generous sponsorship from 3D Systems and Entropy Resins.