The Influence of the Scale Factor and the Effect of Elevated Temperatures up to +200 °C on the Characteristics of the Physico-Mechanical and Rheological Properties of High-Strength Modified Concrete
A. S. Volkov
Donbas National Academy of Civil Engineering and Architecture
Annotation: The results of experimental studies of the influence of the scale factor (dimensions of concrete samples and module of an open surface), as well as the effect of temperatures elevated up to +200 °C on the physical-mechanical and rheological properties of high-performance modified concrete based on the energy industry waste Donbas are presented. The dependences of the characteristics of strength, deformability, initial modulus of elasticity, Poissant’s ratio, parametric levels of fracturing, shrinkage and creep deformations at different levels of continuous compression of high-strength concrete on the dimensions of the samples and the conditions of their drying have been obtained based on the experimental data, including when exposed to high temperatures. Analytical dependences on accounting for the influence of the scale factor on the physical, mechanical and rheological properties of high-strength modified concretes at normal and elevated temperatures are tested and proposed.
Keywords: high-strength modified concrete, exposure to elevated temperatures, scale factor, strength and deformation under axial compression, shrinkage, creep.
Pages: 63-76.
Link for citation: Volkov, A. S. The Influence of the Scale Factor and the Effect of Elevated Temperatures up to +200 °C on the Characteristics of the Physico-Mechanical and Rheological Properties of High-Strength Modified Concrete. – Text : electronic. – In: Modern Industrial and Civil Construction. – 2021. – Vol. 17, N 1. – Р. 63-76. – URL: https://donnasa.ru/publish_house/journals/spgs/2021-1/06_volkov.pdf (date of access: 16.09.2024). (in Russian)
Vol. 17, N 1 (2021)Journal: Modern Industrial and Civil Construction
Publish house: Donbas National Academy of Civil Engineering and Architecture