文档介绍：5Rammed earthworks
On all five continents, rammed earth has lel walls separated and interconnected by
been well-known for centuries as a tradi- spacers (5. 1). This technique is called pisé
tional wall construction technique. In fact, de terre or terre pisé in French; the Spanish
rammed earth foundations found in Assyria names is barro apisonado or tapial; and the
date back as far as 5000 BC. German words is Stampflehmbau.
Formwork for
With rammed earth techniques, moist earth Traditional rammed earth techniques are still
rammed earth
Climbing form- is poured into a formwork in layers of to 15 used in many developing countries. Refined
work, BRL (Minke, cm thick, and pacted by ramming. formwork systems and electrical or pneu-
1984) The formwork usually consists of two paral- matic ramming reduces labour input signifi-
cantly and makes rammed earth techniques
relevant in some industrialised countries as
well. For ecological, and sometimes for eco-
nomic reasons as well, mechanised rammed
earth technology may be a viable alternative
to conventional masonry especially in those
industrialised countries where high stan-
dards of thermal insulation are not required.
Many firms employ this technology in the
southwestern USA and in Australia.
parison with wet loam techniques
(see chapter 9), the shrinkage ratio of
rammed earth