BS 1377 Part 2 1990
Shrinkage limit (Disk specimen)
Location
Job Ref:
BH No.
Soil Description
Sample No.
Depth
Test method
BS1377: Part 2:
1990: 6.4
Date
TEST DATA
Specimen reference
Shrinkage dish no.
Mass of wet soil + dish
m3
g
Mass of dish
m3
g
Mass of wet soil
m1 =
m3 - m2
g
Mass of dry soil + dish
m4
g
Mass of dry soil
md =
m4 - m2
g
Initial Moisture content
w1
=
(m1 - m
d)
*100
%
md
Volume of mercury in shrinkage dish
V1.
mL
Volume of mercury displaced by dry soil
Vd.
mL
Volume of shrinkage
V1 - Vd
mL
Shrinkage limit
Ws = W1
-
(V1 - Vd)
*100
%
md
Shrinkage Ratio
Rs =
md
Vd
Given moisture content
W
%
Volumetric Shrinkage
Vs =
W - Ws
Rs
DATA FOR SHRINKAGE CURVE
Measurement No.
1
2
3
4
5
6
Mass of soil pat
m
g
Volume of soil pat
V
mL
Volume per 100 g
U =
(V)
* 100
of dry soil
md
Moisture content
w=
(m - md)
* 100
%
md
Proportion Retained on
425 um sieve............%
Shrinkage limit
Shrinkage ratio
Volumetric shrinkage
Operator
Checked
Approved
Form 2F