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The determination of the amount of material finer than
Define C117
a 75-um (No.200) sieve
-To determine the grading of materials,
-compliance of particle size distribution,
What is the significance of -provide data for control of production of various
C136? aggregate
-developing relationships concerning porosity and
packing
What procedure should Procedure A
always be used unless
otherwise specified in
c117?
What is an appropriate Water or any dispersing agent that will promote
wetting agent to use for separation of the fine materials
sieving through a No.200
sieve?
What should the 110 °C (+-5)
temperature of the oven
be when drying samples?
(C117)
, If used, how much wetting Enough to produce a small amount of suds when the
agent should be used in sample was agitated
procedure B? C117
Report the amount <10%-report to the .1%
retained by wash by....? >10%-report to the nearest whole number
(C117)
How long do you sieve so that not more than 1% of material retained on any
material? C136 sieve will pass during 1 minute of hand sieving
How accurate shall readable to the nearest .1 Gram or .1%
balances be fo fine
aggregate? C136
How accurate shall readable to the nearest .5 gram or nearest .1%
balances be for course
aggregate or mixtures?
C136
What is the significance of Accurate determination of material finer than 75-um in
C117? mineral aggregate by washing
What practice is used for D75
sampling aggregate?
The investigation of A responsible, trained and experienced person
potential sample material
should be performed
by....? D75
What should a stockpile Discernable Variations
be visually inspected of?
D75
Where shall a sample be From the finished product
obtained where
practicable?D75