Strength of Aggregate

Q. The aggregate impact value of the aggregate used in_____

1. Building concrete is less than 45
2. Road pavement concrete is less than 30
3. Runway concrete is less than 30
4. All the options are correct

Q. The aggregate crushing value for concrete as per Indian conditions varies from :

1. 30 - 45 percent
2. 18 - 27 percent
3. 50 - 65 percent
4. 5 - 10 percent

Q. Consider the following statements:
1. A high aggregate impact value indicates strong aggregates.
2. A low aggregate crushing value indicates high crushing strength of aggregates.
3. Aggregates having elongation index values greater than $15$ are generally considered suitable for pavement construction.
4. Flakiness index of aggregates should not be less than $25$ for use in road construction.
Which of the above statements is/are correct?

1. 2 and 3 only
2. 2 and 4 only
3. 1 and 3 only
4. 1 and 4 only

Q. The property of aggregate, which can be measured by the Impact Value test is known as

1. Flakiness
2. Toughness
3. Hardness
4. Resistance to weathering

Q. Aggregate impact value gives a indication of _____ of aggregate

1. Wearing Capacity
2. Water resistance
3. Water absorption
4. Toughness