Question

During a CBR test, the load sustained by a remoulded soil specimen at 5.0 mm penetration is 50 kg. The CBR value of the soil will be

• A. 5.0%
• B. 2.4%
• C. 3.6%
• D. 10.0%

Answer 1

The correct option is B 2.4%

CBR value of 5 mm penetration

$=\left[\frac{\text{Load sustained by the specimen at 5mm penetration}}{\text{Load sustained by standared aggregates at 5 mm penetration}}\right]\times 100$
$=\frac{50}{2055}\times 100$
$=2.4\%$