Self-consolidating concrete (SCC) also called self-compacting concrete, is a unique category of concrete that has the ability to flow and fill formwork without requiring any mechanical vibration or compaction. It is highly fluid and can easily flow into complex shapes and congested reinforcement without outside external forces.
SCC is designed to have a high viscosity and excellent deformability, which allows it to flow under its own weight and self-level without segregation. It achieves this through a mixture of high levels of fines, chemical admixtures, and modified aggregate gradations. The precise mix design may vary depending on specific project requirements.
The benefits of SSC includes:
- Improved workability: SCC flows easily and can fill intricate forms, reducing the need for manual compaction and reducing labor requirements.
- Enhanced quality & durability: The self-compactness of SCC ensures that concrete fills all voids and forms a dense, void-free structure, resulting in improved strength and durability.
- Increased productivity: SCC can significantly speed up construction processes by reducing the time required for placing and compacting concrete.
- Better finish and appearance: Produces a smooth and uniform surface finish with reduced honeycombing and air voids as SCC is better flowable.
- Reduced noise and vibration: SCC removes the need for external vibration equipment, resulting in quieter construction sites and reduced environmental impact.
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