16. Cement Concrete for Pavement Construction
Cement concrete pavements are essential for modern road infrastructure, known for their structural strength and durability. The process of constructing these pavements involves various aspects, including material selection, laying, finishing, curing, and ensuring quality through modern techniques. Special attention is given to joints, reinforcement, and maintenance, emphasizing sustainability and environmental considerations.
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What we have learnt
- Cement concrete pavements are classified into various types based on reinforcement and operational characteristics.
- Proper material selection is crucial, including cement, aggregates, water, and admixtures.
- Effective curing and maintenance are essential for prolonging pavement lifespan and enhancing performance.
Key Concepts
- -- Plain Cement Concrete Pavement (PCC)
- A type of pavement without reinforcement suitable for light to medium traffic loads.
- -- Reinforced Cement Concrete Pavement (RCC)
- Concrete pavement that includes steel reinforcement to resist stresses and increase durability.
- -- Prestressed Concrete Pavement
- Utilizes pre-tensioned or post-tensioned tendons to counteract tensile stresses, leading to a longer service life.
- -- Durability Considerations
- Factors like resistance to abrasion and freeze-thaw cycles that affect the longevity of concrete pavements.
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