Quiz No. 4 Unit weight and SG of Aggregates

Given the following:
Mass of container + sample = 10.30kg
mass of container = 5.44kg
Vol. of container = 0.00281
What is the Unit weight?

• 1,730

• 3,516

• 2,323

• 1,885

Lower Bulk density, lower weight, __________________.

• more pore spaces

• less pore spaces

• high bearing capacity

• low bearing capacity

The ratio of the weight in air of a unit volume of the impermeable portion of aggregate (does not include the permeable pores in aggregate) to the weight in air of an equal volume of gas-free distilled water at

the stated temperature.

• Apparent Specific Gravity

• Bulk Specific Gravity

• Bulk Specific Gravity (SSD)

• Absorption

The increase in weight due to water contained in the

pores of the material.

• Absorption

• Apparent Specific Gravity

• Moisture Content

• Saturated Surface Dry

The ratio of the weight in air of a unit volume of aggregate at a stated temperature to the weight in air of an equal volume of gas-free distilled water at the stated temperature.

• Bulk Specific Gravity

• Absorption

• Bulk Specific Gravity (SSD)

• Apparent Specific Gravity

The ratio of the weight in air of a unit volume of aggregate, including the weight of water within the voids filled to the extent achieved by submerging in water for approximately 15 hours, to the weight in air of an equal volume of gas-free distilled water

at the stated temperature

• Bulk Specific Gravity (SSD)

• Bulk Specific Gravity

• Apparent Specific Gravity

• Absorption

Given the following:

Weight in air of SSD sample = 4650g

Weight in air of oven-dried sample = 4590g

Weight of sample in water = 2870g

what is the absorption?

• 1.31%

• 1.30%

• 1.29%

• 1.28%

Given the following:

Weight in air of SSD sample = 4650g

Weight in air of oven-dried sample = 4590g

Weight of sample in water = 2870g

what is the Bulk Specific Gravity (SSD)?

• 2.61

• 2.60

• 2.59

• 2.58

Given the following:

Weight in air of SSD sample = 4650g

Weight in air of oven-dried sample = 4590g

Weight of sample in water = 2870g

what is the Bulk Specific Gravity?

• 2.58

• 2.56

• 2.54

• 2.52

Given the following:

Weight in air of SSD sample = 4650g

Weight in air of oven-dried sample = 4590g

Weight of sample in water = 2870g

what is the apparent specific gravity?

• 2.67

• 2.69

• 2.70

• 2.72