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Investigating the influence of fly ash on the hydration behavior of cement using an electrochemical method
- Source :
- Construction and Building Materials. 222:41-48
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- 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.
- Subjects :
- musculoskeletal diseases
Cement
Materials science
fungi
technology, industry, and agriculture
0211 other engineering and technologies
020101 civil engineering
Blended cement
02 engineering and technology
Building and Construction
Electrochemistry
Positive correlation
0201 civil engineering
Dielectric spectroscopy
Compressive strength
Fly ash
021105 building & construction
General Materials Science
Composite material
Civil and Structural Engineering
Subjects
Details
- ISSN :
- 09500618
- Volume :
- 222
- Database :
- OpenAIRE
- Journal :
- Construction and Building Materials
- Accession number :
- edsair.doi...........f60ed0846bf2ae7c0f0ac866565227bc