Karimzad Anzabi, Azin, fahimifar, ahmad, Khalili, Mohammad. (1399). Thermal effects on the mechanical properties of marble, travertine and concrete cores under direct tensile test. نشریه مهندسی عمران امیرکبیر, 4(2), 155-164. doi: 10.22060/ajce.2019.14907.5509
Azin Karimzad Anzabi; ahmad fahimifar; Mohammad Khalili. "Thermal effects on the mechanical properties of marble, travertine and concrete cores under direct tensile test". نشریه مهندسی عمران امیرکبیر, 4, 2, 1399, 155-164. doi: 10.22060/ajce.2019.14907.5509
Karimzad Anzabi, Azin, fahimifar, ahmad, Khalili, Mohammad. (1399). 'Thermal effects on the mechanical properties of marble, travertine and concrete cores under direct tensile test', نشریه مهندسی عمران امیرکبیر, 4(2), pp. 155-164. doi: 10.22060/ajce.2019.14907.5509
Karimzad Anzabi, Azin, fahimifar, ahmad, Khalili, Mohammad. Thermal effects on the mechanical properties of marble, travertine and concrete cores under direct tensile test. نشریه مهندسی عمران امیرکبیر, 1399; 4(2): 155-164. doi: 10.22060/ajce.2019.14907.5509

Thermal effects on the mechanical properties of marble, travertine and concrete cores under direct tensile test

AUT Journal of Civil Engineering
مقاله 2، دوره 4، شماره 2، تابستان 2020، صفحه 155-164    اصل مقاله (1.52 M)
نوع مقاله: Research Article
شناسه دیجیتال (DOI): 10.22060/ajce.2019.14907.5509
نویسندگان
Azin Karimzad Anzabi1؛ ahmad fahimifar* 2؛ Mohammad Khalili3
1M.Sc., Amirkabir University of Technology, Department of Civil & Enviromental Engineering
2Professor, Amirkabir University of Technology, Department of Civil & Enviromental Engineering
3Ph.D candidate, Amirkabir University of Technology, Department of Civil & Enviromental Engineering
چکیده
Fire and high temperatures are the most destructive accidental loads that a structure can be subjected to. There are numerous kinds of research concentrated on the effect of high temperature on physical and mechanical properties of rocks and concrete while there are a few inadequate investigations on marble and limestones. This work presents direct tensile tests results obtained under high temperatures on marble, travertine and concrete samples, previously heated at a namely temperature (350°C), were tested. Destructive tests of direct tensile tests and uniaxial compressive tests were performed on the samples. Furthermore, tests were carried out under air-cooled conditions to minimize the effect of the fire-off method and then physio-mechanical properties of thermally treated, and the reference samples at room temperature were discovered. The results show that direct tensile strength, and tensile modulus decrease as the temperature rises for the tested range of temperatures. After thermal treatment, the measured direct tensile strength is found to show a decrease up to 44%, 45%, 16.71% for Marble, travertine, and concrete samples respectively. Regarding Young’s modulus, a fall over 42% , 22% and 33% in air-cooled is observed.
کلیدواژه‌ها
Thermal treatment؛ Direct Tensile Strength؛ Marble؛ Travertine
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