1. IDIEM, Universidad de Chile, Plaza Ercilla 883, Santiago, CL
2. Laboratory of Geomaterials, Catholic University of Concepción, Alonso de Ribera 2850, Casilla 297 Concepción, CL (Corresponding author), e-mail: avillalobos@ucsc.cl
3. AECOM, Level 21, 420 George Street, Sydney, NSW 2000, AU