Engineering Geological Characteristics of Carbonate building stones in southwest of Yazd

Understanding the engineering properties of decorative building stones is of particular importance. In this research, after identifying the mines related to carbonate rocks in the southwest of Yazd, sampling was performed at the mine site and after packing, it was transferred to the laboratory. From three places to Quaternary age (travertine and onyx), from three places to Oligomocene age (Abarkooh marble) and from three places to Cretaceous age (porcelain, crystal marble and black limestone) from each point 3 blocks A stone with approximate dimensions of 20 × 30 × 20 cm was prepared. Figure 2 shows the sampling sites. In order to evaluate the lithological, physical, strength and durability properties of the studied rocks, various laboratory experiments were performed. Then, according to the results of the experiments, the stones were scored based on the engineering properties of the stone. In terms of the highest score, Sangchini(90%), Black limestone(85%), Abarkooh marble(78%), Onix(69%), Hojjatabad travertine(53%), Turan Posht travertine(53%) and finally crystal marble(52%) had the lowest score, respectively.Black limestone, Abarkooh marble, Enix, Hojjatabad travertine, Turan Posht travertine and finally crystal marble had the lowest score, respectively.