Micro-cracking phenomenon at low temperatures has been widely studied by several researchers e.g., Kliewer et al., 1996; Sebaaly et al., 2002; Nesnas and Nunn, 2006.
El fenómeno de micro-fisuración a bajas temperaturas ha sido ampliamente reportado por diversos investigadores p.e., Kliewer et al., 1996; Sebaaly et al., 2002; Nesnas y Nunn, 2006.