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Laboratory Test Sheet
Insitu Californian Bearing Ratio - BS 1377 : Part 5 : 1990
Insitu Californian Bearing Ratio
Location Job ref.
Test no.
Soil description Sample no.
   
  Date
Group/Type Date Form
Test Method
 BS 1377 : Part 9 : 1990 : 4.3
NOTE: Test applicable only when maximum particle size beneath plunger does not exceed 20 mm
Area of annulus of disc used  mm2 Jack/load ring no.
Mass of surcharge   kg Calibration ref.
RECORDINGS Moisture content of sample
NOTE : Penetration and force reading after seating load zeroed.
 
Penetration  Force on Mean Calibration N/Division
of plunger plunger  
mm Load kN
gauge
0.25
 
0.5  
0.75  
1  
1.25
1.5  
1.75  
2  
2.25  
2.5
2.75  
3  
3.25  
3.5  
3.75  
4  
4.25  
4.5  
4.75  
5  
5.25  
5.5  
5.75  
6
6.25  
6.5  
6.75  
7  
7.25  
7.5  
RESULTS  
 
Penetration Force Standard CBR    
force  
mm kN kN %  
2.5 13.2  
5.0 20.0                
In-situ CBR value
Operator Checked Approved
Form 9F