Rammed Earth at MIT

A team of MIT architecture students built a wall behind the MIT Museum of rammed earth using a combination of 30 percent Boston Blue Clay mixed with sand and gravel. Twelve tons of this clay, common at depths of 30 to 60 feet in the metropolitan Boston area, came from the excavation site of a new building at Harvard. “The wall will serve as a long-term test of rammed earth in New England, allowing us to observe the way various soil types used in construction stand up to the climate,” said Joe Dahmen, a graduate student in architecture who is leading the project. [ more at livescience ]

Node 1 and Contour Crafting

“Node 1” is a conceptual architecture project by French Architect François Roche which lacks most of the usual architectural accoutrements: blueprints, material suppliers, subcontractors. Instead, Roche imagines a programmable assembly device dubbed the “viab,” a construction robot capable of improvising as it assembles walls, ducts, cables, and pipes. A viab would produce structures that are not set and specific, but impermanent and malleable – merely viable – made of a uniform, recyclable substance like adobe.

The closest thing to a viab today is a modest mud-working robot, called “contour crafter”, invented by Behrokh Khoshnevis, a professor of engineering at the University of Southern California. Two years ago, California-based architect Greg Lynn was talking to Khoshnevis about the same topic. [ 1 | 2 | 3 ]

Casa Grande

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Perhaps nowhere is the blending of modernity and the tradition of earth building more evident than at the Casa Grande Ruins National Monument. Casa Grande was constructed between ad 1200-1450 by the Native American Hohokam near Phoenix, Arizona. In 1928, Frederick Law Olmsted Jr., son of Frederick Law Olmsted the landscape architect most famous for the earthwork of Central Park in New York City, was acting as an adviser to the National Park Service. The desire by the National Park service was to create a shelter that both protected the ruins, while allowing them to have hierarchical presence. The Olmsted Jr. design was completed on December 12, 1932.