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A comparative study of the totalproduction costs of NVC and SCC in Brazil


Concrete manufacture in South America

 


In 1988, a high performance concrete with an excellent deformability in the fresh state as well as high resistance to segregation was developed in Japan. This new concrete with the capability to fill the formworks without any vibration or compaction, and passing through the reinforcement bars without blocking while keeping its cohesiveness, has been defined as Self-Compacting Concrete (SCC) [1]. This is a significant evolution since it originated from normal vibrated concrete consisting of the four basic components: cement, fine and coarse aggregates, and water. A more evolved SCC with six components was obtained by adding chemical admixtures (superplasticizers and, eventually, viscosity modifying admixtures) to those four components and the mineral admixtures – the fines, (which can be pozzolanic and non-pozzolanic) [2].

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CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 10 different language editions in more than 170 countries. These trade journals, with their practical editorial reporting on research, production and applications, are specifically addressing the decision makers of the concrete and precast concrete industry.

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