AKULA 9000B USER MANUAL
/ APPENDICES
REV:EN05130513-03
Copyright 2006-2015 © Geoscanners AB
38
Appendix C – Common materials RDP
Relative Dielectric Permittivity for Common Materials at 100MHz
MATERIAL
RDP
VELOCITY (mm/ns)
ATTENUATION dB/m
Air
1
299.7
0
Asphalt Dry
2 – 4
212 - 150
2 – 15
Asphalt Wet
6 – 12
122 - 87
2 - 20
Clay Dry
2 – 6
212 – 122
10 – 50
Clay Wet
5 – 40
134 – 47
20 - 100
Coal Dry
3.5
160
1 - 10
Coal Wet
8
106
2 – 20
Concrete Dry
4 – 10
150 – 95
2 – 12
Concrete Wet
10 – 20
95 – 67
10 – 25
Freshwater
81
33
0.01
Freshwater Ice
4
150
0.1 – 2
Granite Dry
5
134
0.5 – 3
Granite Wet
7
113
2 – 5
Limestone Dry
7
113
0.5 – 10
Limestone Wet
8
106
1 – 20
Permafrost
4 – 8
150 – 106
0.1 – 5
Rock Salt Dry
4 - 7
150 – 113
0.01 – 1
Sand Dry
2 – 6
212 – 122
0.01 – 1
Sand Wet
10 – 30
95 – 55
0.5 – 5
Sandstone Dry
2 – 5
212 – 134
2 – 10
Sandstone Wet
5 – 10
134 – 95
4 – 20
Sea Water
81
33
100
Sea-water Ice
4 – 8
150 – 106
1 – 30
Shale Dry
4 – 9
150 – 100
1 – 10
Shale Saturated
9 – 16
100 – 75
5 – 30
Snow Firm
6 – 12
122 – 87
0.1 – 2
Soil Clay Dry
4 – 10
150 - 95
0.3 – 3
Soil Clay Wet
10 – 30
95 – 55
5 – 50
Soil Loamy Dry
4 – 10
150 – 95
0.5 – 3
Soil Loamy Wet
10 – 30
95 – 55
1 – 6
Soil Sandy Dry
4 – 10
150 – 95
0.1 – 2
Soil Sandy Wet
10 – 30
95 – 155
1 - 5