Calculate the dry rodded unit weight (density), apparent specific gravity, bulk specific gravity oven dry, and bulk specific gravity at SSD for the following two aggregate samples. a) An aggregate sample from a stockpile A has a mass of 35.09 lb. When oven-dried, it has a mass of 33.14 Ib. When brought to a saturated surface dry state it has a mass of 35.18 Ib. When weighed in water, it has a mass of 20.23 Ib. A 0.35 ft. bucket filled with an oven-dry sample of the aggregate weighs 33.14 lb. b) An aggregate sample from a stockpile A has a mass of 8.93 kg. When oven-dried, it has a mass of 7.4 kg. When brought to a saturated surface dry state it has a mass of 7.87 kg. When weighed in water, it has a mass of 4.35 kg. A 0.009 m.3 bucket filled with an oven- dry sample of the aggregate weighs 13.9 kg.
Calculate the dry rodded unit weight (density), apparent specific gravity, bulk specific gravity oven dry, and bulk specific gravity at SSD for the following two aggregate samples. a) An aggregate sample from a stockpile A has a mass of 35.09 lb. When oven-dried, it has a mass of 33.14 Ib. When brought to a saturated surface dry state it has a mass of 35.18 Ib. When weighed in water, it has a mass of 20.23 Ib. A 0.35 ft. bucket filled with an oven-dry sample of the aggregate weighs 33.14 lb. b) An aggregate sample from a stockpile A has a mass of 8.93 kg. When oven-dried, it has a mass of 7.4 kg. When brought to a saturated surface dry state it has a mass of 7.87 kg. When weighed in water, it has a mass of 4.35 kg. A 0.009 m.3 bucket filled with an oven- dry sample of the aggregate weighs 13.9 kg.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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help find a, and b
Transcribed Image Text:## Aggregate Sample Analysis: Dry Rodded Unit Weight and Specific Gravity Calculations
This educational segment focuses on calculating the dry rodded unit weight (density), apparent specific gravity, and bulk specific gravity (oven dry and at saturated surface dry, SSD) for two given aggregate samples.
### Sample a:
- **Initial Mass**: 35.09 lb
- **Oven-Dry Mass**: 33.14 lb
- **SSD Mass**: 35.18 lb
- **Submerged Mass**: 20.23 lb
A 0.35 ft³ bucket is filled with an oven-dry sample, weighing 33.14 lb.
### Sample b:
- **Initial Mass**: 8.93 kg
- **Oven-Dry Mass**: 7.4 kg
- **SSD Mass**: 7.87 kg
- **Submerged Mass**: 4.35 kg
A 0.009 m³ bucket is filled with an oven-dry sample, weighing 13.9 kg.
These calculations are essential for understanding the properties of aggregates used in construction and material engineering. The apparent specific gravity and bulk specific gravity help determine the voids, porosity, and quality of the aggregates, which are critical for concrete mix design and other applications.
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