Akademik Veri Yönetim Sistemi
Measurement: Journal of the International Measurement Confederation, cilt.274, 2026 (SCI-Expanded, Scopus)
The influence of microwaves on rocks has been studied by several scientists in anticipation of a potential application in microwave-assisted excavation. However, all these studies were performed on fresh rock samples such as cores and slabs. The impact of microwave heating on the altered surfaces of rocks has not been studied in the literature. This study aims to research how weathered joint surfaces affect the microwave irradiation of Nigde marble. Ten different block samples with weathered joint surfaces were collected from four different quarries. Small samples without weathered joint surfaces and those with weathered joint surfaces were prepared using a diamond saw from the same large blocks of each sample. Dry and saturated samples were microwaved at a power of 6 kW for various irradiation times, which ranged from one to five minutes. X-ray photoelectron spectroscopy (XPS) was used on the samples that were scraped from their weathered surfaces to determine the elements that constituted the samples. The results showed that the weathered surface consistently had higher temperatues than the unweathered one. The temperature differences between weathered and fresh surfaces increased as exposure duration increased. During the 5-minute exposure period, the temperature increments varied from 21.3 percent to 132.3 percent for wet samples and from 26.1 percent to 126.5 percent for dry samples. Some simple and multiple regression equations including elements were also developed for the prediction of temperature increments. It was demonstrated that weathered rock surfaces had substantially higher temperatures than unweathered rock surfaces. This should be taken into account when evaluating possible field applications for microwave heating.