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Questions and Answers
What are the basic components of concrete?
What causes the hardening of concrete?
How is a particular concrete usually specified?
What is the primary cause of the strength development in concrete over time?
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What are the factors that the strength, durability, and other characteristics of concrete depend on?
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What causes the hardening of concrete?
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What are the primary constituents of concrete?
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How are the characteristics of concrete affected?
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How is concrete usually specified?
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What causes the concrete to become hard like stone?
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Study Notes
Concrete Basics
- Concrete consists of four primary constituents: cement, water, aggregate (sand, gravel, or crushed stone), and air.
Hardening of Concrete
- The hardening of concrete is caused by the hydration of cement, which is a chemical reaction between cement and water.
Specifying Concrete
- A particular concrete is usually specified by its compressive strength, which is typically measured in pounds per square inch (psi) or megapascals (MPa).
- The specification of concrete may also include other characteristics such as workability, density, and durability.
Strength Development
- The primary cause of the strength development in concrete over time is the continuous hydration of cement, which leads to the formation of a strong and rigid bond between the aggregates.
Factors Affecting Concrete Characteristics
- The strength, durability, and other characteristics of concrete depend on various factors, including:
- The type and amount of cement used
- The water-to-cement ratio
- The type and amount of aggregate used
- The mixing and curing methods
- The temperature and environmental conditions during curing
Characteristics of Concrete
- The characteristics of concrete, such as strength, durability, and workability, are affected by the proportion of its constituents, the mixing and curing methods, and the environmental conditions during curing.
Concrete Specification
- Concrete is usually specified by its intended application, such as building foundations, walls, or roads, and its required characteristics, such as compressive strength and durability.
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Description
Test your knowledge of concrete science and engineering fundamentals with this quiz. Explore the classification, properties, advantages, and disadvantages of concrete as a widely used construction material. Sharpen your understanding of concrete mixtures and the role of cement, water, aggregates, and admixtures in its composition.
