![]() ![]() The panels were then connected together to form a rigid shell, further supported with lightweight aluminium rods flexed in tension. The 336 unique translucent panels of the Saltygloo structure were made in a powder-based 3D printing process where a layer of salt is applied then fixed in place selectively with a binding agent, before the next layer of salt is deposited and the process is repeated. "However, there is a long tradition of architecture constructed of salt blocks, particularly in the Middle East and in desert environments." "No one has ever 3D-printed a building out of salt," Rael told Dezeen. They claim that their pavilion is the first to be printed from salt but draws on traditional techniques for building with the material. In addition to being a renewable resource, the salt is inexpensive compared to commercially available printing materials and creates strong lightweight components. ![]() In these ponds the highly saline water completes evaporation, leaving 8-12 inches of solid crystallised salt that is then harvested for industrial use." "These ponds are the final stop in a five-year salt-making process that involves moving bay water through a series of evaporation ponds. "The salt is harvested from 109-year-old salt crystallisation ponds in Redwood City," they said. They explained that 500,000 tonnes of sea salt are harvested each year in the San Francisco Bay Area using power from the sun and wind. "The structure is an experiment in 3D printing using locally harvested salt from the San Francisco Bay to produce a large-scale, lightweight, additive manufactured structures," said Ronald Rael and Virginia San Fratello of additive manufacturing startup Emerging Objects. ![]()
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