Building with Earth: Design and Technology of a Sustainable Architecture

(Nancy Kaufman) #1
Loam-filled hollow blocks

In industrialised countries, there are many
different types of hollow blocks available,
which are usually filled with concrete. They
are made of materials such as pumice
bound in cement mortar, expanded clay,
cement-bound woodwool, lime-bound
sand, baked clay or foamed polystyrene. If
the wall is not load-bearing, loam can also
be used instead of concrete infill loam.
Load-bearing members can be integrated
with these walls or placed inside the walls,
as shown in 10.22.

If high airborne noise insulation and thermal
capacity is required, a high proportion
of gravel should be mixed into the loam.
If high thermal insulation is required, light-
weight aggregates should be added.

89 Tamped lightweight loam

10 .17Transporting and
pumping lightweight
mineral loam
10 .18Surface of a light
loam wall made of clayey
loam and expanded clay
(8–16 mm) after the
formwork was removed
10 .19Scraping light-
weight mineral loam wall
in order to get a textured
surface (without using
plaster)
10.20Vertical section
through floor with light-
weight mineral loam
10. 21Lightweight min-
eral loam used as infill in
timber flooring
10.22Loam-filled hollow
blocks forming a corner
with different positions of
structural post
10.23Filling hoses with


Pumped lightweight mineral loam floors

using a pump
10.24 to 10.25Manually
filling of hoses with light-
weight mineral loam
using a funnel


10.23 10.24

10.25
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