Building with earth - Gernot MINKE (1)

10.14
10.16
10.15
10.13 Pouring mineral
loam in lost formwork
10.14 to 10.15 Study
models for interior walls
using lightweight mineral
loam and lost formwork
of textile stressed by
cables
10.16 Vertical section and
horizontal section showing
the ceiling pattern for
a bathroom with a central
skylight
little bit thinner than for pouring. It can be
pumped up to heights of two storeys using
hoses. Illustration 10.17 shows the example
of a 300-year-old half-timbered house
restored in Germany, where the mix was
prepared by a regular mobile concrete
mixer, funnelled into a pump, and then
piped to the formwork.
Surface treatment
After removing the formwork, the surface
of tamped, poured or pumped mineral loam
walls with densities of 600 to 900 kg/m 3
can be seen to be fairly hard, albeit rough
(10.18). This surface need only be plastered
with a single thin layer (unlike equivalent
87
Tamped lightweight loam