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Provide a 5 pages analysis while answering the following question: Californian Bearing Ratio Test. Prepare this assignment according to the guidelines found in the APA Style Guide. An abstract is required. The step in the procedure of this test is the preparation of sample soil that is to be tested. The soil is passed through the 20 mm test sieve and a sample of about 6 kg is acquired. As shown in the picture below.
Then the next stage is the penetration, the mold prepared is placed in the compression machine and a surcharge plate is placed at top of the sample. Then a bedding load is applied which is 50 kN, after which all dial gauges are reset to zero. Then the compression machine starts to apply the load at a rate of precisely 1mm / min. Keep the load increment of 0.25mm and record the dial gauge readings at each interval until a total of 7.5 mm of penetration is seen. As shown in the picture below.
After the complete penetration of 7.5mm unload the sample from the machine and acquire some wet soil sample and after recording its weight place in the oven to dry and later calculate its moisture content. Then the calculation is done as follows.
(b) It is seen that with the increase of moisture content the compaction of the soil is also increased but after a certain point which is known as an OMC (optimum moisture content) the increase in moisture results in a decrease in compaction. So the increase in moisture content will increase the CBR value till the OMC is acquired after which the CBR will decrease.
iii) A plotting of the above data is done between percentage moisture and dry density of the sample. The maximum/peak point of this graph is the OMC optimum moisture content and against this, there is a dry density value as well.
iv) In the next steps would be to make different samples with different compactive efforts that are, the no of blows by the rammer is reduced and varied eg 10 blows, 30blows, and 56 blows. Then CBR test would be performed at each of these samples and values at 2.5 mm and 5.0 mm penetration is recorded and CBR value calculated.&nbsp.
(d) The general reason for this is that these countries have very high water tables/levels. This might be due to several reasons which could be very high precipitation or maybe areas of depression.&nbsp.
The post Provide a 5 pages analysis while answering the following question: Californian Bearing Ratio Test. Prepare this assignment according to the guidelines found in the APA Style Guide. An abstract is required. The step in the procedure of this test is the preparation of sample soil that is to be tested. The soil is passed through the 20 mm test sieve and a sample of about 6 kg is acquired. As shown in the picture below. appeared first on nursing writers.

 

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