ASTM C117 Standard Method of Test for Materials Finer than 75-μm (No. 200) Sieve in Mineral
Aggregates by Washing TESTS WITH ANSWERS A+ GRADE.
For the given data, calculate the amount of material passing the 75 mm sieve by washing.
A = percent of fine material by washing
B = Original dry mass of sample = 518.5 g
C = Dry mass of sample after washing = 504.1 - A. A = [(B - C) / B] x 100 = [(518.5 - 504.1)/518.5] x
100 = 2.78%
After washing the test sample, pour the wash water over the _____. - 1.18 mm and 75 mm nested sieves
If the percentage of material passing the No. 200 sieve by washing is _____, report the result to the
nearest whole number. - 10 % or more
Repeat the process for washing the test sample and pouring the wash water over the nested sieves _____.
- until the wash water is clear.
The test sample shall be washed _____. - using plain water, unless otherwise specified
Obtain a sample of aggregate in accordance with _____. - Test Method C136 if the aggregate is to be
tested by both C117 and C136.
Manually agitate the submerged aggregate to separate all fine particles from the coarser particles and to
bring the fine material into suspension.True or False? - True
All material retained on the nested sieves is _____. - returned to the washed sample by flushing the sieves
When used, the purpose for a wetting agent is to _____. - more readily separate the fine material from the
coarse material
Aggregates by Washing TESTS WITH ANSWERS A+ GRADE.
For the given data, calculate the amount of material passing the 75 mm sieve by washing.
A = percent of fine material by washing
B = Original dry mass of sample = 518.5 g
C = Dry mass of sample after washing = 504.1 - A. A = [(B - C) / B] x 100 = [(518.5 - 504.1)/518.5] x
100 = 2.78%
After washing the test sample, pour the wash water over the _____. - 1.18 mm and 75 mm nested sieves
If the percentage of material passing the No. 200 sieve by washing is _____, report the result to the
nearest whole number. - 10 % or more
Repeat the process for washing the test sample and pouring the wash water over the nested sieves _____.
- until the wash water is clear.
The test sample shall be washed _____. - using plain water, unless otherwise specified
Obtain a sample of aggregate in accordance with _____. - Test Method C136 if the aggregate is to be
tested by both C117 and C136.
Manually agitate the submerged aggregate to separate all fine particles from the coarser particles and to
bring the fine material into suspension.True or False? - True
All material retained on the nested sieves is _____. - returned to the washed sample by flushing the sieves
When used, the purpose for a wetting agent is to _____. - more readily separate the fine material from the
coarse material
