Rammed-earth wall building may be an ancient home-construction ... With traditional wood homes, Krayenhoff noted, "the temperature would drop within a few hours". Local architect Bruce Haden ...

Rammed earth homes are built by putting in place the form of the house, which is usually a plywood structure that provides the outline of a wall. A mix of soils is then rammed into the walls ...

Large portions, particularly in arid regions, were constructed using compacted soil, or rammed earth ... Wall's significance as "a cultural symbol of China and Chinese civilization," as noted ...