Akademik Veri Yönetim Sistemi
2nd International conference on Mediterranean Geosciences Union, MedGU 2022, Marrakech, Fas, 27 - 30 Kasım 2022, ss.25-27
This study investigates the changes in the strength of Nigde marble irradiated by microwave energy. The uniaxial compressive strength (UCS) and the Brazilian tensile strength (BTS) tests were carried out on the untreated samples and on the samples which were microwave treated at 6 kW for a duration of 5 min. The tests were carried out on both dry, semi-saturated and saturated samples. After the irradiation of the samples by microwave at 6 kW power for 5 min, while the temperature reached about 215 °C for the dry specimens, the temperatures of the semi-saturated and fully saturated specimens raised to about 230 °C and 250 °C, respectively. The strength decrements in the UCS samples are 10.9% and 35.4% for the dry and saturated conditions, respectively. The strength decrements in the BTS samples are 30.4% and 37.7% for the dry and saturated conditions, respectively. The UCS value of the treated dry specimen decreases slightly. On the other hand, the UCS values of the treated samples decline steadily with the increasing saturation degree. The BTS value of the irradiated dry specimen decreases rapidly. The BTS value of the saturated specimens after the treatment declines slowly with the increasing saturation degree that the UCS and the BTS specimens show different behavior under the microwave treatment is probably due to the size effect. Concluding remark is that the microwave treatment has important effect on the strength of Nigde marble.