Page 24 - แหล่งดิน

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ตารางท 2.3 น ้าหนกของหิน (Weight of Rocks)
ั
ี
Founds per cubic foot Cubic feet per ton Tons pet cubic yard

MaterialIn 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 1.30 1.75

Granite ________________________170 97 11.8 20.6

2.30 1.31 1.74
Limestone _____________________ 168 96 11.9 20.8

2.27 1.30 1.75

Porphry _______________________ 170 97 11.8 20.6

2.30 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 22.0

2.27 1.23 1.75

Shale _________________________ 175 95 11.4 21.1
2.36 1.28 1.85