Page 21 - Soil

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ตารางที่ 2.3 น้ําหนักของหิน (Weight of Rocks)

Pounds per cubic foot Cubic feet per ton Tons per cubic yard
Material
In place Broken In place Broken In place Broken Swell

Andesite 181 97 11.1 20.6 2.44 1.31 1.75

Basalt 181 97 11.1 20.6 2.44 1.31 1.75

Diabase 187 94 10.6 21.3 2.52 1.27 1.75

Diorite 187 94 10.6 21.3 2.52 1.27 1.75

Gneiss 168 96 11.9 20.8 2.27 1.3 1.75

Granite 170 97 11.8 20.6 2.3 1.31 1.74

Limestone 168 96 11.9 20.8 2.27 1.3 1.75

Porphyry 170 97 11.8 20.6 2.3 1.31 1.74

Rhyolite 150 86 13.4 23.3 2.02 1.16 1.75

Quartzite 165 94 12.1 21.3 2.23 1.27 1.74

Sandstone 151 86 13.2 23.3 2.04 1.16 1.76

Schist 168 91 11.9 22 2.27 1.23 1.75

Shale 175 95 11.4 21.1 2.36 1.28 1.85

Slate 175 95 11.4 21.1 2.36 1.28 1.85