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What are the standard load values for 2.5 mm and 5 mm penetration respectively in CBR test?
- a)1370 kg, 2855 kg
- b)1870 kg, 2055 kg
- c)1370 kg, 3855 kg
- d)1370 kg, 2055 kg
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
What are the standard load values for 2.5 mm and 5 mm penetration resp...
CBR test- it is a penetration test to evaluate the stability of soil subgrade.
CBR = (load carries by specimen/load carries by standard specimen) X 100
The load values on standard crushed stones are 1370 kg and 2055 kg at 2.5 mm and 5.0 mm penetrations respectively.
CBR = (load carries by specimen/load carries by standard specimen) X 100
The load values on standard crushed stones are 1370 kg and 2055 kg at 2.5 mm and 5.0 mm penetrations respectively.
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What are the standard load values for 2.5 mm and 5 mm penetration resp...
Standard Load Values for CBR Test
- 2.5 mm Penetration: The standard load value for 2.5 mm penetration in CBR (California Bearing Ratio) test is 1370 kg.
- 5 mm Penetration: The standard load value for 5 mm penetration in CBR test is 2055 kg.
Explanation:
In the CBR test, a standard piston is used to penetrate the soil sample at a constant rate of penetration. The load required to achieve a penetration of 2.5 mm and 5 mm is recorded during the test. These standard load values are used to determine the relative strength of the soil being tested.
The load values of 1370 kg and 2055 kg for 2.5 mm and 5 mm penetrations, respectively, are established based on the standard procedures and specifications for conducting CBR tests. These values are widely accepted in the field of geotechnical engineering for evaluating the strength and stiffness of subgrade soils.
It is essential to adhere to these standard load values to ensure consistency and reliability in CBR test results across different testing laboratories and projects. These values serve as benchmarks for comparing the strength characteristics of different soil types and for making informed decisions in soil stabilization and pavement design.
- 2.5 mm Penetration: The standard load value for 2.5 mm penetration in CBR (California Bearing Ratio) test is 1370 kg.
- 5 mm Penetration: The standard load value for 5 mm penetration in CBR test is 2055 kg.
Explanation:
In the CBR test, a standard piston is used to penetrate the soil sample at a constant rate of penetration. The load required to achieve a penetration of 2.5 mm and 5 mm is recorded during the test. These standard load values are used to determine the relative strength of the soil being tested.
The load values of 1370 kg and 2055 kg for 2.5 mm and 5 mm penetrations, respectively, are established based on the standard procedures and specifications for conducting CBR tests. These values are widely accepted in the field of geotechnical engineering for evaluating the strength and stiffness of subgrade soils.
It is essential to adhere to these standard load values to ensure consistency and reliability in CBR test results across different testing laboratories and projects. These values serve as benchmarks for comparing the strength characteristics of different soil types and for making informed decisions in soil stabilization and pavement design.
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What are the standard load values for 2.5 mm and 5 mm penetration respectively in CBR test?a)1370 kg, 2855 kgb)1870 kg, 2055 kgc)1370 kg, 3855 kgd)1370 kg, 2055 kgCorrect answer is option 'D'. Can you explain this answer?
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