Özet:

This study was carried out to investigate the effect of high temperature by using fire and oven on the physical and mechanical properties of three different concrete classes that are C16/20, C20/25 and C40/50 also, concrete samples are manufactured as containing expanded perlite aggregate (EPA) and not containing perlite aggregate. The reference temperatures are specified as 22 ºC, 100 ºC, 300 ºC, 500 ºC in the oven and the case of fire. These temperatures are applied to a sample having 100x100x100 mm3 dimensions. The tests made on each concrete type are weight per unit volume, compressive strength, and ultrasonic pulse velocity. Consequently, the test results come out statistically different of the concrete samples affected by high temperature according to if the heat is applied by the oven or fire, the compressive strength of the samples decreases as the high-temperature degree increases in a compressive strength test. Besides that, while the loss of compressive strength of oven samples at 500 ºC comes out approximately 60 %, for samples applied fire is approximately 10%.

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