Introduction. The post-war reconstruction of Ukraine is one of the most important stages in the restoration of a state that has suffered significant destruction and losses. Reconstruction requires a comprehensive approach to the problem of destroyed infrastructure and housing stock, in addition to financial investments. The solutions needed today are construction and production of building materials based on the principles of sustainable development. The best European practices and experience should be incorporated.
Problems. The European integration of the construction materials industry has been in the process of implementation in the form of Regulation (EU) no. 305/2011 [1], and from January 1, 2023, the Law of Ukraine "On placing construction products on the market" [2], implementing the provisions of Regulation (EU) no. 305/2011 [1]. At the same time, the previous national standards - the State Standards of Ukraine - are still in force in parallel with the newly introduced European standards. This makes it difficult for manufacturers, customers, construction companies and designers to use the regulatory documentation. This situation fully applies to producing concrete and cement used in general construction.
Objective. To review the current Ukrainian standards that regulate the selection of the required type of concrete mixtures by designers and manufacturers of concrete mixtures cement to meet the durability requirements of concrete structures.
Materials and methods. The article uses methods of complex and systematic analysis, comparative analysis and the method of expert evaluation.
Results. Based on Table 6.2 in the wording of Amendment 1 of DSTU-N B.2.7-299:2013 Guidelines for determining the composition of heavy concrete [13], it is proposed to change the requirements for the choice of cement type depending on exposure classes.
Conclusions. The proposed concept of exposure classes and the recommendations for the selection of cement consistent with it satisfies the purpose of this article and is recommended by the authors as a tool for the creation of durable concrete in various operating environments.The current in Ukraine, the requirements of EN standards are "minimum" requirements for all EU countries.
for all EU countries. Each EU country supplements them with additional requirements in accordance with its climatic conditions and the properties of local raw materials. These requirements are based on careful long-term studies of the durability of concrete of different compositions on different cements under different service conditions. Relevant research institutes should carry out such studies also in Ukraine.
