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Questions and Answers
What is concrete composed of?
What is concrete composed of?
After what substance is concrete the second-most-used in the world?
After what substance is concrete the second-most-used in the world?
What process causes concrete to harden over several hours?
What process causes concrete to harden over several hours?
What role does ambient temperature play in the setting of concrete?
What role does ambient temperature play in the setting of concrete?
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What are additives such as pozzolans or superplasticizers used for in concrete?
What are additives such as pozzolans or superplasticizers used for in concrete?
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Study Notes
Concrete Composition
- Concrete is a composite material composed of fine and coarse aggregates bonded together with a fluid cement that hardens over time.
Global Usage
- Concrete is the second-most-used substance in the world, after water.
Hardening Process
- Concrete hardens through a process called hydration, which occurs over several hours.
Ambient Temperature's Role
- Ambient temperature plays a crucial role in the setting of concrete, with higher temperatures accelerating the hardening process and lower temperatures slowing it down.
Additives in Concrete
- Additives such as pozzolans or superplasticizers are used to improve the workability, strength, and durability of concrete by enhancing its hydraulic properties and reducing the amount of water required.
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Description
Test your knowledge of concrete with this quiz! Learn about the composition, usage, and properties of this widely used building material.
