VNU Journal of Science Mathematics – Physics, Vol 37, No 2 (2021) 13 21 13 Original Article A Model for Electrical Conductivity of Porous Materials under Saturated Conditions Nguyen Van Nghia*, Nguyen Manh Hung, Luong Duy Thanh Thuyloi University, 175 Tay Son, Dong Da, Hanoi, Vietnam Received 02 July 2020 Revised 25 October 2020; Accepted 15 November 2020 Abstract Measurements of electrical conductivity have been used for the geological material characterizations due to their sensitivity to va[.]