Tuesday, November 12, 2013

Soil Texture Test Quantitative


In this lab we put 60-70 mL of soil and added water to cover the soil completely. Then we let it sit for 24 hours. The next day after all the layers were settled out we measured the height  of each layer. We had 5cm of clay, 3 cm of silt and 2 cm of sand in our sample. Our sample was a total of 10 cm.
How we calculated:
clay: 5/10 = x/ 100 = 50% clay
Silt: 3/10 = x/100 = 30% silt
Sand: 2/10= x/100 = 20% sand

Using the triangle we were able to determine that we had silty clay.
The answer from this section is the same answer we got in the qualitative method. Except we thought it was just clay not silty clay. Yes our soil type was consistent with our percolation test results. This is because we got 44.9 % clay and 30% sand meaning our soil has mainly clay in it.




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