Experimental investigation of selection of warm mode for high-performance self-stressing self-compacting concrete

7th International Symposium Actual Problems of Computational Simulation in Civil Engineering

土木建筑工程;计算机科学

Krishan, A.L.^1 ; Narkevich, M.Yu.^1 ; Sagadatov, A.I.^1 ; Rimshin, V.I.^2

Nosov Magnitogorsk State Technical University, Lenin ave. 38, Magnitogorsk

455000, Russia^1

Research Institute of Building Physics, Russian Academy of Architecture and Construction Sciences, Lokomotivny passage 21, Moscow

107031, Russia^2

关键词: Concrete grades;    Experimental investigations;    Holding temperatures;    Isothermal time;    Relative strength;    Scientific experiments;    Strength of concrete;    Temperature rise;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/456/1/012049/pdf
DOI  :  10.1088/1757-899X/456/1/012049

来源: IOP

【 摘 要 】

The purpose of the present work is the search of the rational mode of thermal treatment of high-performance self-stressing self-compacting concrete. At the present time, only few of such investigations have been carried out by scientists. In the present paper, the results of scientific tests implemented by the authors for holding temperature 50°C and 60°C are outlined. Dependence between relative strength of concrete specimen cylindrical form and the total time of electrical curing at fixed duration of temperature rise and cooling has been figured out. The scientific experiments implemented have shown that the mode of thermal treatment 3 + 5 + 3 of high-performance self-stressing self-compacting concrete with the temperature of isothermal time 60°C allowed obtaining the value of relative strength at axial compression of 70%. Along with that, strength of concrete at 28 days corresponded to the concrete grade B80. The obtained data can be used to verify results of calculations.