چکیده مقاله
In this paper , the 28 day compressive strength test has been performed on samplesincluding normal fiber concrete and high strength concrete Ultrasonic test UT as anondestructive and also, compressive machine CM as a destructive test was appliedand the results were compared In order to investigate the effect of temperature,samples were subjected to 200, 400, 600, 800, 1000 and 1200 degrees Celsius and theduration of exposure was equal to 30, 45, 60, 90, 120 and 180 minutes Based on theresults, it was observed that the minimum error observed between UT and CM testswas 2 9% and the maximum error between the two methods was 10 9%, which showsthe high accuracy of the ultrasonic test method in determining the specimen strength The average probable error of the method is determined to be around 6 8% Furthermore, according to the average reduction in compressive strength due to heatexposure time, it has been observed that the results UT and UM test have slightnumerical differences, however, the trend of changes and reduction of resistanceagainst the time for both types of tests is almost the same Finally, the accuracy of theUT in determining the compressive strength of specimens in high temperatures is fullyconfirmed
کلیدواژهها
نویسندگان
Seyed Yousef Jafari Naeini
MSc, Civil Engineering, Construction management, Islamic Azad University, Ahwaz branch,Ahwaz, Iran
شیوه ارجاع
Jafari Naeini, Seyed Yousef,1402,Experimental study on the effect of fire on fiberconcrete using non-destructive methods,The first international conference on advanced research in civil engineering, architecture and urban planning
ارائهشده در
مجموعه مقالات اولین کنفرانس بین المللی تحقیقات پیشرفته در مهندسی عمران، معماری و شهرسازی20 تیر 1402