BS 1377 Part 4 1990          
Dry density/moisture content relationship (rammer)
Location Job Ref:
BH No.
Soil Description Sample No.
Depth
Test method  BS1377: Part 4:  1990: 3.3/3.4/3.5/3.6* Date
Procedure   2.5/4.5kg* hand/mechanical rammer*        
    layers  blows per layer  
  One litre/CBR* mould Volume of mould (V) cm3
  Single sample/separate batches*          
Initial sample mass g Particle density Mg/m3
Retained on 20mm/37.5mm* sieve g %      
Test number   g 
Mass of mould+base+compacted g          
  specimen (m2)
Mass mould+base (m1)   g
Mass compacted specimen (m2-m1) g
Bulk density Mg/m3          
  P=(m2-m1)/(18.15h)  
Moisture content container No.  
Moisture content  (w) %
Dry density   Mg/m3          
  Pd=(100p)/(100+w)  
*Delete as appropriate            
      Maximum dry density Mg/m3
Optimum moisture content %
 
Dry
Density
Mg/m3
  Moisture Content %

 
  Operator Checked Approved

                                                                                                                                        Form 4A