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CONCRETE TECHNOLOGY30 CPI %u2013 Concrete Plant International %u2013 4 | 2025 www.cpi-worldwide.comPrecast concrete componentsIn other research projects, the filling of precast concrete elements with mineral foams was investigated under laboratory conditions [4]. The aim was to use mineral foam instead of XPS and mineral wool as thermal insulation without significantly changing the manufacturing processes of the precast concrete elements. Under laboratory conditions, it was possible to place fresh concrete on a fast-curing mineral foam just two hours after application (Fig. 4).However, the research results also showed the challenges that come with the technology. The low compressive strength of the mineral foam meant that point loads caused by the installation process and by reinforcing elements can easily deform the thermal insulation layer. Compacting the concrete can also lead to deformation of the foam. Summary and outlookIn the future, manufacturers of concrete products and precast elements will be able to equip their products with a self-produced mineral foam. In contrast to the application of conventional, already established thermal insulation materials, this means that the concrete element manufacturers themselves become producers of the insulation material. The resulting responsibility requires the acquisition of new skills and competencies. The current challenge lies in both material and process engineering developments aimed at bringing mineral foam technology into mass-market application.This report is largely based on scientific findings from several research projects carried out by IAB. The research was funded as part of the INNO-KOM program by the Federal Ministry for Economic Affairs and Energy (BMWi) on the basis of a resolution of the parliament of the Federal Republic of Germany. nLiterature[1] EP 3 156 383 B1: Verfahren zur Herstellung eines anorganischen Schaumes, 2017.[2] Gellert, R.: Chapter 8 %u2013 Inorganic mineral materials for insulation in buildings. Materials for Energy Efficiency and Thermal Comfort in Buildings, 2010, S. 193-228.[3] Schmidt, U.: Mineralschaum %u2013 Von der Entwicklung bis zur Zulassung, Tagungsband IAB-TAGE %u00bbBETON%u00ab 2022, S. 19-26.[4] Entwicklung von klinker- und CO2-effizienten Schnellbindersystemen zur Herstellung von schnellerh%u00e4rtenden Mineralsch%u00e4umen und Anwendung in der Fertigteiltechnologie, EURONORM GmbH %u2013 Projekttr%u00e4ger des Bundesministeriums f%u00fcr Wirtschaft und Energie, F%u00f6rderkennzeichen 49VF2I0029FURTHER INFORMATIONIAB %u2013 Institut f%u00fcr Angewandte Bauforschung Weimar gGmbH %u00dcber der Nonnenwiese 1 99428 Weimar, Germany T +49 3643 86840 kontakt@iab-weimar.de www.iab-weimar.deFig. 4: Concrete placement on a two-hour-old mineral foam layer.