In this case Nan et al., 2001, ECAT was used as sand replacement in mortars. It was found that for a 0.55 and 0.485 water/cementitious ratio it was possible to replace up to 10% of sand without reducing the mortar's compressive strength.
En este caso, Nan su et al. 2001 utilizaron ECAT como reemplazo de arena en morteros, logrando que para una relación agua/cementante de 0,55 y 0,485 se puede reemplazar hasta un 10% de arena sin disminuir la resistencia a compresión del mortero.