Self-compacting concrete with a similar water cement or cement binder ratio will usually have a slightly higher strength compared with traditional vibrated concrete, due to the lack of vibration giving an improved interface between the aggregate and hardened paste.The concrete mix of SCC must be placed at a relatively higher velocity than that of regular concrete.
Assaad is Professor of Civil Engineering at Notre Dame University and R&D Manager at Holderchem Building Chemicals S.
His research interests include technology of chemical and mineral admixtures, grinding aids for Portland cement, rheology, concrete repair and injection, formwork pressure, and durability.
The importance of self-compacting concrete is that maintains all concrete’s durability and characteristics, meeting expected performance requirements.
In certain instances the addition of superplasticizers and viscosity modifier are added to the mix, reducing bleeding and segregation.
Self-consolidating concrete is required to flow and fill special forms under its own weight, it shall be flowable enough to pass through highly reinforced areas, and must be able to avoid aggregate segregation.