Experimental data for mode I fracture toughness testing under high-temperature isothermal conditions

This database includes experimental results from mode I fracture toughness (KIC) tests conducted on high-temperature isothermal rock specimens. Four lithologies were studied: a porous siliceous sandstone (Corvio, C), a limestone (Crema Palancar, CP) and two granites (Blanco Mera, BM and Blanco Alba, BA). Tests were conducted at room pressure using the pseudo-compact tension (pCT) methodology. Six temperatures were seclected: 100, 200, 300, 400, 500, 600 °C.