On the Issue of Ensuring the Durability of Products and Structures Made of High-Strength Concrete to Explosive Destruction

Abstract

Fire safety procedures are an integral part of the design process of civil and industrial construction facilities. When carrying out design calculations, up-to-date reference data on the resistance of known types of building materials to the effects of open fire and elevated temperatures are used. However, modification of the compositions and properties of such materials may cause changes in their behavior in fire conditions. Thus, new types of high-strength concretes based on Portland cement in practice have shown a tendency to explosive destruction, which significantly affects the reliability of the simulation results of their resistance to prolonged and short-term exposure to elevated temperatures. The presented work provides an overview and assessment of the current state of the issue of ensuring fire safety of structures made of high-strength concrete, additional measures are proposed to improve the existing algorithms for determining their fire resistance.