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The highly fluid nature of SCC makes it suitable for placing in difficult conditions and in sections with congested reinforcement.

Use of SCC can also help minimize hearing-related damages on the worksite that are induced by vibration of concrete.

However it is laborious and takes time to remove by vibration, and improper or inadequate vibration can lead to undetected problems later.

Additionally some complex forms cannot easily be vibrated.

Current Developments in Self-Compacting Concrete Introduction Self-compacting concrete (SCC) is a flowing concrete mixture that is able to consolidate under its own weight.SCC does not use a high proportion of water to become fluid - in fact SCC may contain less water than standard concretes.Instead, SCC gains its fluid properties from an unusually high proportion of fine aggregate, such as sand (typically 50%), combined with superplasticizers (additives that ensure particles disperse and do not settle in the fluid mix) and viscosity-enhancing admixtures (VEA).Adjustments to traditional mix designs and the use of superplasticizers creates flowing concrete that meets tough performance requirements.If needed, low dosages of viscosity modifier can eliminate unwanted bleeding and segregation.

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