Agriculture Reference
In-Depth Information
1000
900
800
700
600
500
400
300
200
100
0
0
20
40
60
80
100
120
140
Displacement in mm
25;4
35;4
60;5
75;4,5
35;6
60;5
Fig. 17.4.
Stretch tests on a sample of hemp wool. The photo shows the sample being tested; the graph
illustrates the results for different types of hemp wool, varying in density and thickness (key: density
kg/m
3
; thickness cm).
200
180
160
140
120
100
80
60
40
20
0
extent of compression in %
0
10
20
30
40
50
60
70
80
type 25
type 35
type 60
type 75
Fig. 17.5.
Compression tests on hemp tiles. The photo shows the batts being tested. The graph shows
the extent of compression for different types of hemp wool.
•
It may be used over floorboards or instead
the joists in two directions (the first across the
joists, the second at right angles to them).
It may be used underneath the floor.
of floorboards in roof spaces.
Hemp wool can be applied directly to
the floor (whether this be floorboards on top
of joists or a solid concrete floor) in one or
two layers. It can also be applied between
•
Hemp wool is installed beneath the
floor (whether made of wood or masonry)
on a frame.
