AGGREGATES (ECS246)

Naturally or partially shaped by attrition and having rounded edges is ....

• Circular

• Angular

• Rounded

• Irregular

What are the testing method for aggregates? Choose 3 correct answers.

• Sieve analysis

• Hydrometer test

• Falling head

• Atterberg limit

Which of this following is the wrong general classification of aggregate?

• Normal density aggregates

• Light weight aggregates

• Heavy weight aggregates

• High density aggregates

How long does it take to weight an oven dry sample soaked in water?

• 60 minutes

• 24 hours

• 1450 minutes

• 48 hours

What are the properties of aggregates

• Water absorption

• Porosity

• Stability

• Hardness

The followings are types of Deleterious Substance in Aggregate EXCEPT...

• Impurities

• Coating

• Coarse Sand

• Unsound Particles

Fine aggregates should pass through which sieve size?

• 75µ

• 45µ

• 4.75mm

• 5mm

"The thickness of the materials is small relative to 2 dimensions"

The characteristics above describe Particle Shape of aggregates called?

• Elongated

• Flaky & Elongated

• Flaky

To figure out the resistance to integration under weathering, like cooling and heating in terms of volume change was for ....

• Water absorption

• Toughness

• Soundness

• Sieve analysis

Which one of this factors that affect bulk density of aggregate?

• Shape of aggregates

• Moisture content

• Porosity

• Quantity