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Potentials for savings in the production of self-compacting and high strength concrete for precast..

BAM Bundesanstalt für Materialforschung und -prüfung, 12200 Berlin, Germany


...concrete elements Over the course of the last decades, concrete construction has significantly changed from mass application towards sophisticated more inno- vative, future oriented, and performance based materials technology. Today concrete no longer consists of cement, water, and aggregates, but can be enhanced significantly by using supplementary additions and chemical admixtures. Advancements in admixtures eventually facil- itated the development of new concrete types such as self-compacting concrete (SCC) and high performance concrete (HPC) by uncoupling the workability from the water-cement ratio (w/c). While for traditional concrete types the major mixture parameter for the workability and strength were the w/c and the grading of the aggregates, for SCC and HPC the performance parameters are more complicated and the performance depends highly on the powder components. This makes the system more sophisticated and in parallel more prone to scatter during the production. The complexity and difficulty to predict the effects of changes in the process and mixture makes it very difficult to identify the right potentials for savings.

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BAM Bundesanstalt für Materialforschung und -prüfung
Unter den Eichen 87
12200 Berlin, Germany
info@ bam.de, www.bam.de

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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