2. Cement
Concrete is a widely used construction material whose properties are significantly influenced by its ingredients: cement, aggregates, water, and optional admixtures. Each ingredient plays an essential role in determining the performance of concrete, including its strength, durability, and workability. A thorough understanding of these ingredients and their respective properties is crucial for civil engineers to design high-quality concrete that meets specific application requirements.
Enroll to start learning
You've not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- Concrete consists of four primary ingredients: cement, aggregates, water, and admixtures.
- The properties of concrete are affected by the quality and interaction of its ingredients.
- Understanding the chemical composition and physical properties of these ingredients is vital for ensuring the performance of concrete.
Key Concepts
- -- Cement
- The binding material in concrete that, upon hydration, ensures the cohesion of other ingredients.
- -- Aggregates
- Materials like sand and gravel that make up 70-80% of concrete volume and influence its workability and strength.
- -- WaterCement Ratio
- A crucial factor determining concrete's strength and durability, typically ranging from 0.4 to 0.6 by weight.
- -- Admixtures
- Substances added in small quantities to concrete to alter specific properties, such as workability and setting time.
Additional Learning Materials
Supplementary resources to enhance your learning experience.