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ELONGATION INDEX TEST
BS 812 Part 1 :1975
Laboratory : Highway and Trafic Laboratory Type of Material :
Sources :
Location :
Testes By : Date :
Weight
SIEVE SIZE Weight Retaine
Weight Weight Weight Passing d On
of of Sieve On Remarks
Retained Sieve + of Elongati Elongati
on (g) Sample Sample on on
Sieve (g) (g) Gauge Gauge
mm (g) M2 (g) M3
37.5
28
20
14
10
6.3
TOTAL MASS (g)
% Elongation Index (Multiple Size)
Check : Weight Sample = Weight passing + Weight Retained
% Elongation Index = TOTAL PASSING X 100
TOTAL PASSING + TOTAL RETAINED
Higway Engineering Laboratory page 19
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