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