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In this study, the effects of the elevated temperature on concretespecimens prepared with different aggregate types were investigated. For thispurpose, 4 different series were prepared by using CEM I 42,5 (N) type PortlandCement and four different types of aggregates (basaltic crushed aggregate,stream aggregate, limestone and pumice as lightweight aggregate). 100 mm and150 mm cube concrete samples were prepared for each series. When reached the specified curing age,prepared each concrete specimen was taken from the curing pool and exposed tohigh temperatures of 300 ºC, 600 ºC and 900 ºC respectively. Control specimens of each series were storedat room temperature. The compressive strengths, ultrasonic pulse velocity andthe adherence strength of the concrete samples exposed to these temperatureswere examined. At the end of this study, the compressive strengths of theseries exposed to high temperature are compared. It is observed that the serieswhich is produced with basaltic crushed aggregate is least affected and theseries which is produced with lightweight aggregate is the most affected fromthe elevated temperature. Pull-out tests were carried out to the all preparedseries and it was found that the adherence strength between the concrete andthe reinforcement decreased as the temperature increased.