Investigating the influence of fly ash on the hydration behavior of cement using an electrochemical method
Artikel i vetenskaplig tidskrift, 2019

© 2019 Elsevier Ltd Fly ash is an industrial by-product that is widely used in the cement industry. Traditional methods used to investigate the influence of fly ash on the hydration behavior of cement are destructive and cannot accomplish a continuous tracing of the hydration process. In this study, the influence of fly ash incorporation on the hydration process of cement is evaluated using measured electrochemical data obtained from the electrochemical impedance spectroscopy approach. A novel equivalent circuit model that considers the electrochemical characteristics of cement during the hydration process is proposed to investigate the electrochemical property of the blended cement. The resistance parameter of the model, Rct1, was found to have a positive correlation with hydration degree and compressive strength during hydration. With this parameter, the method can be used to non-destructively trace and characterize the effects of fly ash incorporation on the cement hydration process.

Hydration process

Novel equivalent circuit model

Electrochemical impedance spectroscopy

Fly ash blended cement

Compressive strength

Hydration degree


Jianchao Zhang

China Earthquake Administration

Shenzhen University

Biqin Dong

Shenzhen University

Shuxian Hong

Shenzhen University

Xiaojuan Teng

Shenzhen University

Gui Li

Shenzhen University

Weiwen Li

Shenzhen University

Luping Tang

Chalmers, Arkitektur och samhällsbyggnadsteknik, Byggnadsteknologi

Shenzhen University

F. Xing

Shenzhen University

China Earthquake Administration

Construction and Building Materials

0950-0618 (ISSN)

Vol. 222 41-48




Medicinska material och protesteknik



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