Self consolidating concrete cost
Self Consolidating Concrete can be defined as a highly flowable, non-segregating concrete that has the ability to spread by its own weight while filling the formwork and encasing the reinforcement without any form of mechanical consolidation.
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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.
Data indicate that the share of application of SCC in precast concrete industry is more than three times higher than that in the ready-mixed concrete industry. The estimated average price of SCC supplied by the RMC industry in Japan was 1.5 times that of the conventional concrete in the year 2002.
Research studies in Japan are also promoting new types of applications with SCC, such as in lattice type structures, casting without pump, and tunnel linings.Since the development of SCC in Japan, many organizations across the world have carried out research on properties of SCC.Some of the advantages of using Self-Consolidating Concrete are: 1. Improved uniformity of in-place concrete by eliminating variable operator-related effort of consolidation. 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.However it is laborious and takes time to remove by vibration, and improper or inadequate vibration can lead to undetected problems later.