Power ultrasound-assisted concrete production – Scale Up of Laboratory Experiments

In many areas of industry power ultrasound (PUS) is used for the dispersion, homogenization, wet grinding and influencing chemical reactions. Can PUS also increase the compressive strength development of CEM I 42.5 R concrete and replace a CEM I 52.5 R or substitute a moderate heat treatment?

1. Introduction

The requirements for concrete quality are constantly increasing. In the process, the focus is on the properties of workability, strength development and durability. In addition to these technical performance parameters, increasingly sustainability criteria are also becoming more and more important [3][4], such as lowering ­energy consumption, the use of secondary materials and reducing the CO2 footprint.

In the production of concrete parts in the pre-­fabricated parts plant there is a special focus on early strength development. High early strengths are the prerequisite for an...

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