what is the specification for silt content in sand
Answers were Sorted based on User's Feedback
SILT Content in Sand should not be more than 7% by Volume.
( means upto 7% can be used without Washing).
Silt content of a Sand is meaured by folllowing
Procedure,
a) Take a clean 200ml. measuring jar
b) Fill with sand upto a certain mark ( say reading 'X')
and add water above it upto 200ml. and shake well.
c) Allow a period of 2hours for settlement
d) Clean sand will settle at the bottom with silt and clay
impurities on top of the sand layer.
e) Now oserve the top level reading for sand. Assume that
is 'Y'. Then the silt contain in % is given by,
% Silt content = (X-Y/X)*100
Is This Answer Correct ? | 161 Yes | 50 No |
Answer / dharmendra
x is the initial mark , but after adding water and waiting
for 1 hr then we have to take the SAND+SILT = A ml , and
then the only sand level say B ml
silt content = (A-B)/B *100
AND (X-B)/B*100 is BULKING OF SAND
Is This Answer Correct ? | 39 Yes | 16 No |
Answer / sathish
IS code 383 Reference
Maximum allowed for 3% in wet sieve analysis method
75 micron sieve ..used
example
wet sand samle oven heat by process
Then Dry sand 500 gms
IS sieved 75 micron
same value reduce 478
= 500-478 =22
=22/478*100
=4.60%
Is This Answer Correct ? | 25 Yes | 8 No |
Answer / qc
I want to know one what is (SILT Content in Sand should not
be more than 7% by Volume.) reference is where?
ACI ASTM or BS?
What?
Is This Answer Correct ? | 14 Yes | 5 No |
Answer / idrees jae
yeah,i am of the opinion that answers 1 and 2 are correct depending on the perspective.
answer 1,gives you the actual % of silt while answer 2 gives you the worse case.
Is This Answer Correct ? | 12 Yes | 9 No |
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