Powerful ultrasound to increase the early strength of concrete

The analysis of temperature changes, setting time, increase in compression strength showed that use of powerful ultrasound accelerates hardening and allows to reduce the grade of cement used in concrete manufacture, while keeping the compressive strength of the concrete intact. It was confirmed that mild heat treatment of concrete can be replaced by powerful ultrasonic treatment thereby reducing manufacturing costs.
Author: R. Remus, C. Roessler, J. Orben, H.-M. Ludwig

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