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4.2.4 Additional demand for research

The setting and hardening process of concrete has not been fully understood due to its complex composition and chemistry. The use of tailored admixtures may enable the production of real nanocement with superior physical properties in the future. However, the production costs are the most critical issue caused by the enormous quantities of concrete used per year. It is the price which limits a wider use of tailored nanomaterial in concrete today.

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	Fig. 1: Traditional vs. high performance concrete. The specific surface area of such admixtures can be increased by grinding techniques such as ball milling or high energy ball milling whereby the latter technique is able to reduce the grain size down to the nanometer regime. The result is a high performance concrete (HPC) with increased strength...	Show document info	181 KByte
	Fig. 2: "Gärtnerplatz" footbridge "Gärtnerplatz" footbridge made of ultra-high performance concrete reinforced by steel...	Show document info	249 KByte

report4.2.4 Additional demand for research

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4.2.4 Additional demand for research