Features of performance of concrete and reinforced concrete structures of industrial facilities operated under impact of increased and high temperatures

Abstract

Currently, the Normative base of Ukraine has moved to European standards. The process of harmonization with the Eurocodes was completed, new national normative documents of DBN and DSTU were developed and put into effect. At the same time it was turned out that the big section “Concrete and reinforced concrete structures intended for work in conditions of increased and high temperatures” is absent in the Eurocodes. By order of the Ministry of Regional Development, Construction and Housing and Communal Services of Ukraine, the development of a normative act is provided for the replacement of SNiP 2.03.04-84 with DBN with a change in status. Heat-resistant concretes in the elements of thermal aggregates are used in the iron and steel industry (blast furnaces, air heaters, coke batteries, etc.), non-ferrous metallurgy (graphite furnaces, fluidized bed furnaces, etc.), oil refining and petrochemical industry (tubular furnaces, vertical sectional furnaces, etc.), in the industry of building materials, and in various sectors of industry. These norms and rules apply to the design of concrete and reinforced concrete structures designed to operate under conditions of systematic exposure to increased (50 to 200 °C inclusive) and high (above 200 °C) process temperatures.