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Application of radio waves in heating fresh concrete

Enhancing early or formwork stripping strength


CO2 emissions, energy costs and cement consumption in the precast industry can be lowered substantially with the aid of high-frequency heat treatment, an innovative procedure for the controlled heating of fresh concrete. This procedure generates a second internal heat source, alongside hydration heat, by employing radio wave technology (the operating principle is similar to that of microwaves) during the concrete curing process, thereby accelerating hardening considerably.

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Leipzig University of Applied Sciences
Faculty of Civil Engineering
04251 Leipzig, Germany, T +49 341 3076 7025
detlef.schmidt@fb.htwk-leipzig.de, www.htwk-leipzig.de

Helmholtz Centre for Environmental Research – UFZ
Environmental Biotechnology Department
Permoserstr. 15, 04318 Leipzig, Germany
T +49 341 235 1762
ulf.roland@ufz.de, www.ufz.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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