Check out these fascinating pictures from LIFE Magazine's 1942 photo archive
documenting Thomas Hibben's experimental housing project with the United States' Federal Works Agency.
like steel forms and pneumatic tampers.
Not much change in mixer technology in the last 70 years, either.
Here men are laying bricks in the foreground of some completed rammed earth walls. The footing appears to be cinderblock. Combinations of different materials such as concrete, asphalt-stabilized adobe brick, bituminous earth block, and cement-stabilized rammed earth were used in each house.
Raise High the Roof Beam, Carpenters!
The finished product, outside...
Sadly these buildings were demolished in the 70's. Read more about the project at the end of Chapter One in Anthony F. Merrill's The Rammed-Earth House.