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