What is the difference between rammed earth and cob?
Rammed earth is a structural wall system, which is composed of gravel, sand, and clay compacted to a stone like hardness. Cob walls are made of sand, clay and straw. Typically cob walls are in-filled between a post and beam structure and when dry, similar to an adobe mud brick. Rammed earth is far superior in strength, durability, speed of construction and seismic considerations.
