Core Cutting Method

Core cutter method is used for determining dry density of the soil.

Core Cutting method includes the following procedures :

1. Determine the internal diameter and height of the core cutter to the nearest 0.25mm

2. Determine the mass (M1) of the cutter to the nearest gram.

3. Expose a small area of the soil to be tested. Level the surface, about 300mm square in area.

4. Place the dolley over the top of the core cutter and press the core cutter into the soil mass using the rammer. Stop the pressing when about 15mm of the dolley protrudes above the soil surface.

5. Remove the soil surrounding the core cutter, and take out the core cutter. Soil soil would project from the lower end of the cutter.

6. Remove the dolley. Trim the tip and bottom surface of the core cutter carefully using a straight edge.

7. Weigh the core cutter filled with the soil to the nearest gram (M2).

8. Remove the core of the soil from the cutter. Take a representative sample for the water content determination.

9. Determine the water content.