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CONCRETE PRODUCTS & CAST STONE62 CPI %u2013 Concrete Plant International %u2013 3 | 2025 www.cpi-worldwide.comThe concrete industry is facing major challenges. Climate change, the increasing demand for energy and the need for sustainable use of resources are forcing us to rethink. New possibilities for the reduction of the CO2 footprint of concrete production must be identified without compromising the quality of the products. This publication discusses the potentials and challenges of combining modern curing technology, energy generation by pyrolysis and the use of biochar. These technologies are no longer just dreams of the future but are already established. It is now a matter of integrating them optimally and proving their long-term stability on an industrial scale. The first projects that combine these approaches will be implemented in the coming months.Modern curing technology: Increased efficiency and quality improvementConcrete curing is a crucial process that determines the strength, durability, and appearance of the final product. Conventional methods of concrete curing can be inefficient and lead to fluctuations in quality. Modern hardening chambers offer significant advantages in this regard. Controlled curing for reproducible resultsModern curing chambers allow precise control of temperature, humidity and air circulation. This leads to an even and accelerated hydration of the cement, which in turn results in a higher early strength of the concrete. The technology for precise control of the hardening parameters is established and enables reproducible and efficient concrete production.CO2-curing to improve qualityThe targeted introduction of CO2 into the curing chamber is an approach to promote the carbonation of concrete. Carbonation is known to increase the compressive strength and durability of unreinforced concrete products while reducing the susceptibility to efflorescence. Previous tests have confirmed the positive effects of CO2-curing on concrete quality.Adaptation to new types of cementThe concrete industry is evolving, and this also applies to the composition of cementitious binder systems. In order to reduce the CO2 footprint of concrete, cementitious binders with lower reactivity or even cement-free products are increasingly being used. With their flexible control technology, modern curing chambers are able to precisely adapt the hardening parameters to the specific properties of the binder system used. Heat recovery systems to reduce energy lossesIn addition, there is the possibility of integrating heat recovery systems into the curing chamber systems. These systems use the heat contained in the exhaust air to preheat the supply air. This can significantly reduce energy loss in the curing chambers and increase the overall efficiency of the system. Less CO2, more efficiencyNew possibilities in concrete production through pyrolysis, biochar, modern battery storage and optimized concrete curing n S%u00f6nke Tunn, GermanyHeat recovery systems from Kraft Curing Systems GmbH.