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SUMMARY
soi l.
I t comp r i ses of comp letely weat hered rock mass to
Excavation
Common
A lump of p alm si ze (10 0 g r ams) nor mally d i si nteg r ates
test
comp letely wi t hi n 2 0 mi ns by slaki ng
So5 mater i als shall b e excav ated by any excav at i on
etc. )
eq ui p ment (b ackhoe, b ulld ozer, hyd r auli c excav ator,
GEOLOGICAL
FEATURES
Hard Mass I t comp r i ses hi g hly weat hered rock mass and semi -
sed i ment s.
cemented
Sli g ht ly or p a:i ally d i si nteg r ate a5er 2 0 mi ns by slaki ng
test
Mass
Rock
mass.
I t comp r i ses mod er ately weat hered to fresh rock
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