Abstract <p>The dynamic strength of concretes under different temperature-velocity conditions is analyzed using the incubation time criterion and the thermal fluctuation theory of strength. The model is validated through comparison with experimental data on concrete with basalt and limestone aggregate. It is shown that the characteristic relaxation time of concrete increases within the temperature interval of 20 to 800°C and decreases at temperatures above ~800°C.</p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Time Characteristics of High-Speed Fracture of Composite Building Materials at High Temperatures

  • N. S. Selyutina,
  • D. D. Khairetdinova

摘要

Abstract

The dynamic strength of concretes under different temperature-velocity conditions is analyzed using the incubation time criterion and the thermal fluctuation theory of strength. The model is validated through comparison with experimental data on concrete with basalt and limestone aggregate. It is shown that the characteristic relaxation time of concrete increases within the temperature interval of 20 to 800°C and decreases at temperatures above ~800°C.