The relevance of research on the strength and carbonization of concrete for the purposes of construction and technical expertise

The article examines the relevance of the analysis of concrete strength gain and carbonation in the context of judicial construction and technical expertise, due to stricter control over the safety of construction facilities and the need to protect the interests of participants in litigation. The opposite processes are considered: cement hydration, which provides long-term strength gain, and carbonation, which reduces the alkalinity of concrete and provokes corrosion of reinforcement. Special attention is paid to modern technologies (nanomodified compounds, 3D printing, accelerated hardening), which radically change the properties of concrete, requiring new approaches to assessing its characteristics. The methods of strength forecasting, including the calculation of concrete maturity and the chemical kinetics (Arrhenius) equations, as well as their limitations within the framework of regulatory standards, are analyzed. The importance of an integrated approach to carbonation assessment is emphasized, combining laboratory, field and mathematical methods to improve the accuracy of the EC.