T 11 Test for Finer than No. 200 Sieve in Agg by Washing

Question 1

The T 11 washing procedure is conducted to _________.

Answer 1

Remove clay particles and water soluble material from the aggregate.

Question 2

Pour the wash water over a nest of two sieves, where the lower sieve is a _____________ and the upper sieve is in the range of __________ to ___________.

Answer 2

No. 200, No. 8- No. 16

Question 3

Once the water is clear, decanting water through the nest of sieves is no longer required.

Answer 3

False

Question 4

Report the percentage of material finer than the No. 200 sieve by washing to the nearest________ %, if result is less than 10%.

Answer 4

0.1%

Question 5

The minimum dry mass of the test sample with NMAS of No. 4 is _______ grams.

Answer 5

300

Question 6

Dry mass- 384.6g, washed mass - 351.1g. Determine the % of material finer than No. 200?

Answer 6

8.7%

Question 7

A wetting agent is any dispersing agent that will promote seperation of fine materials without ___________ the sample. Detergent must not leave a ___________ on the sample.

Answer 7

Degrading, Residue

Question 8

Use of a mechanical apparatus to perform the washing operation may be used, provided the sample is washed for more than 10 mintues.

Answer 8

False

Question 9

What is the next step after the washing process?

Answer 9

Dry the sampe to constant mass.

Question 10

How does the Method B differ from Method A?

Answer 10

Method B allows for use of wetting agent

Question 11

According to the test method, what is an appropriate wetting agent?

Answer 11

A detergent that won’t leave a residue.

Question 12

According to the test method, what is an appropriate wetting agent?

Answer 12

Dish detergent that doesn’t leave a residue.