Comparison of the Durability of Buildings in a Group

Abstract

Abstract The influence of various factors on the durability of concrete and reinforced concrete structures is determined. Three groups of factors are identified: elasticity, strength, and crack resistance, which influence the assessment of the durability of reinforced concrete. Based on the analysis, the determining influence of the crack resistance factor on the degradation of concrete was revealed. Based on the analysis of existing methods for determining the characteristics of concrete crack resistance, a new method is proposed. The method allows us to evaluate the crack resistance (fracture toughness) of concrete and reinforced concrete structures in any state. The method is proposed and the description of samples for the implementation of the method is given. Standard formulas based on prismatic samples extracted from concrete were used to evaluate the crack resistance characteristics. Comparative tests of samples were carried out using the known and proposed method. The obtained characteristics are used to assess the condition and durability of structures of buildings and structures.