November 13, 2020

3D Adobe Printing Could Be an Option for Southwestern Builders

 

Me in my good black shirt at a job site.

Back when I was a college student, I spent a couple of summers laying adobe bricks in Taos, New Mexico. Under the tutelage of the foreman, Phil Rael, I got to be fairly good at spreading the zoquite [local slang, from Nahuatl] and setting the bricks. 

In the project pictures, the bricks were trucked down from San Luis, Colorado, where they were made in some rehabilitation program for junkies, or something similar. They were top-quality, asphalt stabilized, a little larger than the local homemade variety.

They arrived on an old flatbed truck by two middlemen. I was trying to document this project, and those two were a little camera-shy. Here is one of them, Pat W. I kind of think he dealt in more than one kind of bricks. 

But that is so old-school! Now they are using 3D printers with adobe in the San Luis Valley -- at least in one pilot project. Sweet!

Combining indigenous mud-based building materials with 21st century robotics, California-based Rael San Fratello created the oddly beautiful structures of “Casa Covida,” their “proto-architectures” that connect high- and low-tech traditions. Its name is a nod to both the pandemic and the Spanish word for “cohabitation.” The project recently took a virtual bow in an impressive hour-long event hosted by the Architectural League NY. (The video is online.) The partners, Ronald Rael and Virginia San Fratello, spoke from Antonito, in southern Colorado, and took questions about their work and about “the social agency of design" . . . . .
Pat did not like being photographed.

The creators’ overall goal is to prove that low-cost, low-labor construction is possible, efficient and safe. Think of it as the highest of low-tech. Or down-to-earth high tech.

Using clay, water and wheat straw found onsite, the project aims to“push the boundaries of sustainable and ecological construction.”

It's still an early-stage project, not open to the public. 

What I always liked about adove was the plasticity. You want an arch over there? OK, we'll make one. Was that course of bricks a little out-of-plumb? We'll make it up on the next one. Once it's plastered, no one will know the difference.  

But this new approach goes so much farther! Check out the photos and videos here.

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