The paper shows the promising use of sea sand for additive technologies in construction. The use of sea sand reduces the setting time of the concrete mix and increases the initial strength compared to conventional quarry construction sand. A comparative analysis of the characteristics of sea and quarry sands was performed. It has been experimentally proven that the use of sea sand instead of quarry sand in fine-grained concrete mix leads to a decrease in the setting time of the fresh mix and an increase in the strength of concrete samples. The flexural strength and compressive strength of samples containing sea sand at the age of 28 days increases by 35.7% and 16.7%, respectively, comparing to samples containing quarry sand.

The aim of the study is to examine the existing problems of strategic planning and management in the context of digital transformation. The authors reviewed the theoretical and legal foundations of strategic management, described the approach to management based on big data, considered the main digital trends, and justified the need for digital development of public administration. Much attention is paid to the issues of information security, taking into account geopolitical realities and the need to manage IT risks in the context of current changes. The methods of research include the content analysis of regulatory legal acts, comparative analysis and synthesis of the information obtained. The practical significance of the results lies in the theoretical justification of the need for state regulation of strategic development in order to minimize IT risks in the context of digital technological change, as well as the growing influence of digital technology.

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