Laboratory Test Sheet Shrinkage limit (disc specimen) BS 1377 : Part 2 : 1990
BS 1377 : Part 2 : 1990
Shrinkage limit (disc specimen)
Location							Job ref.
							Borehole/Pit no.
Soil description							Sample No.
							Depth			m
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 - md)	*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
							Optor	Checked		Apprd