Turner-Fairbank Highway Research Center 1 article published in JoVE Engineering Expression of Cementitious Pore Solution and the Analysis of Its Chemical Composition and Resistivity Using X-ray Fluorescence Marisol Tsui Chang1, Luca Montanari2, Prannoy Suraneni3, W. Jason Weiss1 1Civil and Construction Engineering, Oregon State University, 2SES Group and Associates LLC, Turner-Fairbank Highway Research Center, 3Civil, Architectural and Environmental Engineering, University of Miami This protocol describes the procedure to express fresh pore solution from cementitious systems and the measurement of its ionic composition using X-ray fluorescence. The ionic composition can be used to calculate pore solution electrical resistivity, which can be used, together with concrete electrical resistivity, to determine the formation factor.
