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Questions and Answers
Which of the following materials has a density closest to that of reinforced concrete made with cinder?
Which of the following materials has a density closest to that of reinforced concrete made with cinder?
- Damp clay (correct)
- Expanded-slag aggregate concrete
- Dry clay
- Stone concrete
Given two materials, asphalt and loose portland cement, what is the approximate ratio of their densities?
Given two materials, asphalt and loose portland cement, what is the approximate ratio of their densities?
- Approximately 1:2.5
- Approximately 0.9:1 (correct)
- Approximately 1:0.5
- Approximately 1:1
If a construction project requires a material with a density between that of dry peat and dry clay, which of these options fits best?
If a construction project requires a material with a density between that of dry peat and dry clay, which of these options fits best?
- Dry cinders
- Cinder Fill (correct)
- Bituminous coal
- Paraffin
A structural engineer needs to select a lightweight concrete for a nonload-bearing application. Which of the following density ranges would be most appropriate?
A structural engineer needs to select a lightweight concrete for a nonload-bearing application. Which of the following density ranges would be most appropriate?
Which of the following materials would experience the greatest change in density when transitioning from a dry, packed state to a wet state?
Which of the following materials would experience the greatest change in density when transitioning from a dry, packed state to a wet state?
Flashcards
What is Brass?
What is Brass?
A mixture of copper and zinc, often used in decorative items, musical instruments, and plumbing.
What is Bronze?
What is Bronze?
A mixture primarily of copper, usually with tin as the main additive. Known for its strength, corrosion resistance, and use in sculptures and bearings.
What is Gypsum?
What is Gypsum?
A sedimentary rock, often used as a primary ingredient in Portland cement and plaster.
What is Lead?
What is Lead?
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What is Asphalt?
What is Asphalt?
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Study Notes
- Aluminum: 26.7
Bituminous products
- Asphaltum: 12.7
- Graphite: 21.2
- Paraffin: 8.8
- Petroleum, crude: 8.6
- Petroleum, refined: 7.9
- Petroleum, benzine: 7.2
- Petroleum, gasoline: 6.6
- Pitch: 10.8
- Tar: 11.8
- Brass: 82.6
- Bronze: 86.7
- Cast-stone masonry (cement, stone, sand): 22.6
- Cement, portland, loose: 14.1
- Ceramic tile: 23.6
- Charcoal: 1.9
- Cinder fill: 9.0
- Cinders, dry, in bulk: 7.1
Coal
- Anthracite, piled: 8.2
- Bituminous, piled: 7.4
- Lignite, piled: 7.4
- Peat, dry, piled: 3.6
Concrete, plain
- Cinder: 17.0
- Expanded-slag aggregate: 15.7
- Haydite, burned-clay aggregate: 14.1
- Slag: 20.7
- Stone: 22.6
- Vermiculite and perlite aggregate, nonload-bearing: 3.9-7.9
- Other light aggregate, load bearing: 11.0-16.5
Concrete, reinforced
- Cinder: 17.4
- Slag: 21.7
- Stone, including gravel: 23.6
- Copper: 87.3
- Cork, compressed: 2.2
Earth, not submerged
- Clay, dry: 9.9
- Clay, damp: 17.3
- Clay and gravel, dry: 15.7
- Silt, moist, loose: 12.3
- Silt, moist, packed: 15.1
- Silt, flowing: 17.0
- Sand and gravel, dry, loose: 15.7
- Sand and gravel, dry, packed: 17.3
- Sand and gravel, wet: 18.9
Earth, submerged
- Clay: 12.6
- Soil: 11.0
- River mud: 14.1
- Sand or gravel: 9.4
- Sand or gravel and clay: 10.2
- Glass: 25.1
- Gravel, dry: 16.3
- Gypsum, loose: 11.0
- Gypsum, wallboard: 7.9
- Ice: 9.0
Iron
- Cast: 70.7
- Wrought: 75.4
- Lead: 111.5
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Description
This document provides a comprehensive list of the densities of various materials, including metals like aluminum, brass, bronze, and copper, as well as bituminous products, concrete types, earth compositions, and coal varieties. Density is a crucial property in material science and engineering.
