| 摘要 |
PROBLEM TO BE SOLVED: To provide a bulk density measuring method of a soil material which enable the precisely measurement of the bulk density of the soil material such as a bentonite material on the execution spot. SOLUTION: A test piece 21 is cut from a dead water bed 3 comprising compacted bentonite material and the weight is measured. Next, the cut test piece 21 is immersed in measuring oil 23 until bubbles disappear. Thereafter the test piece 21 is taken out; the measuring oil 23 on the surface of the test piece 21 is wipen off and the test piece 21 is perfectly put in a graduated cylinder 24 in which the measuring oil 23 is housed. Then, the increase amount of the measuring oil 23 is measured by the graduated cylinder 24 to calculate the volume of the test piece 21. The bulk density of the test piece 21 is calculated from the calculated weight and volume of the test piece 21. COPYRIGHT: (C)2007,JPO&INPIT
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