Optimisation of the Mixing Process for Producing Self-Compacting High-Performance Concrete
Today’s concrete structures call for high-tech construction materials, for example self-compacting high-performance concrete (SCHPC) as self-compacting high-strength concrete (SCHSC) and self-compacting ultra-high-strength concrete (SCUHSC). These concretes are defined as concretes with special properties. This development aims to increase the packing density through the selection of coarse and fine aggregates combined with a reduction in the water-to-binder ratio (w/b). To achieve this goal, state-of-the-art concrete plants need to meet certain minimum requirements. In an effort to realize shorter construction times and develop new concrete process technologies, and in view of ever-increasing degrees of component loading, international research has been going on for approximately 30 years for materials that have led, among other things, to the development of high-performance concrete. A trend towards the development of customized concretes, for example of SCHPC, can also be observed in the German construction industry.
KeywordsCompressive Strength Froude Number Concrete Mixer Normal Concrete Special Energy Input
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- 1.DIN Deutsches Institut für Normung (2001), DIN EN 206-1 – Concrete – Part 1: Specification, performance, production and conformity, Beuth, Berlin (in German).Google Scholar
- 2.Beitzel, H. (2009), Future Trends in the processing of ready-mixed high-strength self-compacting concrete, Proceedings of the 2nd International Conference on Advances in Concrete Technology in the Middle East – Self Compacting Concrete, Abu Dhabi.Google Scholar
- 3.Beitzel, H. (2007), Quality-assured manufacture of self-compacting concrete (SCC) by changing the relevant machine parameters in the concrete mixer, Concrete Plant + Precast Technology, vol. 01/2007 (in German).Google Scholar
- 4.Beitzel, H., Charonnat, Y. and Beitzel, M. (2003), RILEM TC-150 ECM – Efficiency of Concrete Mixers, Final Report, Materials and Structures, vol. 26, pp. 256.Google Scholar
- 5.Beitzel, H. (2007), Process optimisation for the mixing of self-compacting concrete, Proceedings of the 5th International RILEM Symposium on Self-Compacting Concrete, vol. 1, Ghent.Google Scholar
- 6.DIN Deutsches Institut für Normung (1995), DIN 459-2 – Building material machines – Mixers for concrete and mortar – Part 2: Procedure for the examination of the mixing efficiency of concrete mixers, Beuth, Berlin (in German).Google Scholar