Aashto T 335 Fractured Faces

Question 1

The percentage of fracture is calculated by mass.

Answer 1

True

Question 2

Method 1, cumulative, what is the min. mass retained on the No.4 seive required for a sample that is 3/4” NMAS?

Answer 2

1000g

Question 3

The percentage of fractured faces is reported to the nearest _______ percent.

Answer 3

Whole number

Question 4

If on any of the determinations more than _________% of the total mass of the sample is placed in the questionable category, repeat the determination until no more than _________% is present in the category.

Answer 4

15%, 15%

Question 5

The mass of questionable or borderline particles should not be included in the calc of percentage of fracture.

Answer 5

False

Question 6

A two face crushed particle count was performed per Method 1 on 1237.3g of 1” NMAS material retained on the No.4 sieve. The fractured particle weight was 1076.7g and the questionable particle weight was 64.2g. What is the percentage of fracture for the sample?

Answer 6

Invalid Test, 1” not less than 1500g

Question 7

A one-face crushed particle count was performed per Method 2 on 835.3g of particles collected on the 3/4” sieve. The fractured particle weight was 725.1g and the questionable particle weight was 95.5g. What is the percentage of fracture for the sample?

Answer 7

93%

Question 8

Ask the student to identify a particle with one fractured face and a particle with two fractured faces.

Answer 8

Show proctur.