A complete example
BM_000
BM_111
67
BM_222
33
0.5
BM_xxx
75
BM_yyy
20
BM_zzz
5
1.5
BM_aaa
60
BM_bbb
30
BM_ccc
6
BM_ddd
4
20
Primary Road
BM_ASPHALT
0.15
BM_SAND
90
BM_ROCK-GRAVEL
10
0.55
Painted Dry Wall
BM_PAINT
BM_DRYWALL
0.015
Runway Concrete
BM_CONCRETE
0.26
BM_SAND
0.66
Driveway Pavement
BM_PAINT-ASPHALT
BM_ASPHALT
0.10
BM_SAND
0.15
The simplest composite material
BM_ xyz