Lean cement mortar, as guide wall base and void filling in diaphragm walls

Lean cement mortar, with a dosage below 40 kg/m³, for the construction of the guide wall base and the filling of voids that may occur in the ground during diaphragm wall excavation works, by the diaphragm wall machine, as a result of the existence of wells or galleries in the subsoil, landslides or extraction of old foundations.