BS 1377 Part 4 1990          
California Bearing Ratio Test (data for density)
Location Job Ref:
BH No.
Soil Description Sample No.
Sample Prep. Method  BS1377: Part 4:  1990: 7.2.3/7.2.4/7.2.5* Date
Preparation procedure Static,______________layer(s), with/without tamping*  
    2.5 kg rammer/ 4.5 kg rammer/ vibrating hammer*    
    Specified density*    Volume of mould Specified effort*  
    ________Mg/m3   V________cm3 _______layers  
                _______blows/ layer    
*Calculated mass of soil required (m1)       g      
*Mass of mould + baseplate + soil (m3)     g      
*Mass of mould + baseplate (m2)       g      
*Mass of soil (m3-m1)         g      
*Soaking time           days      
*Time for water to appear at top of sample            
*Final swell             mm      
*Mass of mould + baseplate + soil after soaking (m4) g      
*Mass of soil after soaking (m4-m2)       g      
Maximum bearing ratio from plotting chart     %      
Bulk density (unsoaked) *P=m1/V Mg/m3  
Moisture content (w)           %      
*Dry density (unsoaked)                
Pd=100P/(100+w) Mg/m3    
*Delete as appropriate                
  Operator Checked Approved

                                                                                                                                        Form 4E