Earth Plus® Conductive Concrete is Safety Protection Grid Solution’s brand name for conductive concrete. Our Earth Plus® Conductive Concrete has a resistance value around 20 Ohms per centimeter (cm).
Why use Earth Plus® Conductive Concrete.
Where can Earth Plus® Conductive Concrete be used?
How can Earth Plus® Conductive Concrete be installed?
How is can Earth Plus® Conductive Concrete made?
Soil Resistivities (Approximate Ohm-Meters) |
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Description |
Median |
Minimum |
Maximum |
Topsoil, Loam |
26 |
1 |
50 |
Inorganic clays of high plasticity |
33 |
10 |
55 |
Fills-ashes, cinders, brine wastes |
38 |
6 |
70 |
Gravelly clays, sandy clays, silty clays, lean clays |
43 |
25 |
60 |
Slates, shales |
55 |
10 |
100 |
Silty or clayey fine sands with slight plasticity |
55 |
30 |
80 |
Clayey sands, poorly graded sand-clay mixtures |
125 |
50 |
200 |
Fine sandy or silty clays, silty clays, lean clays |
190 |
80 |
300 |
Decomposed gneisses |
275 |
50 |
500 |
Silty sands, poorly graded sand-silt mixture |
300 |
100 |
500 |
Clayey gravel, poorly graded gravel, sand-clay mixtures |
300 |
200 |
400 |
Well graded gravel, gravel-sand mixtures |
800 |
600 |
1,000 |
Granites, basalts, etc. |
1,000 |
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Sandstone |
1,010 |
20 |
2,000 |
Poorly graded gravel, gravel-sand mixtures |
1,750 |
1,000 |
2,500 |
Gravel, sand, stones, little clay or loam |
2,585 |
590 |
4,580 |
Surface limestone |
5.050 |
100 |
10,000 |
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Note 1: Low resistivity soils are highly influenced by the presence of moisture |
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Note 2: Low resistivity soils are more corrosive than high resistivity soils |