Characterization of fly-ash using electrochemical impedance spectroscopy

Benny Suryanto; William John McCarter; Gerard Starrs; T. Malcolm Chrisp

doi:10.1016/j.proeng.2017.01.414

Characterization of fly-ash using electrochemical impedance spectroscopy

Benny Suryanto, William John McCarter, Gerard Starrs, T. Malcolm Chrisp

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Abstract

Electrochemical impedance spectroscopy is used to obtain the electrical properties of fly-ash over the frequency range 100Hz-10MHz. A range of presentation formalisms are exploited to characterize and assess this material in terms of its unburnt carbon content and pozzolanic reactivity. Fly-ash from a number of power stations within the UK, which differ in carbon content and fineness are used within the experimental programme. It is shown that the methodology could be exploited to index both the pozzolanicity and the presence of carbon in the ash. A number of additional features make this testing methodology of interest: the method is non-destructive and non-invasive; samples need not be restricted to cement pastes as mortars and concretes can also be studied.

Original language	English
Pages (from-to)	705-714
Number of pages	10
Journal	Procedia Engineering
Volume	171
DOIs	https://doi.org/10.1016/j.proeng.2017.01.414
Publication status	Published - 21 Feb 2017
Event	3rd International Conference on Sustainable Civil Engineering Structures and Construction Materials - Denpasar, Bali, Indonesia Duration: 5 Sept 2016 → 7 Sept 2016

Keywords

Fly-ash
Carbon
Pozzolanicity
Monitoring
Electrical properties

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10.1016/j.proeng.2017.01.414Licence: CC BY-NC-ND

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title = "Characterization of fly-ash using electrochemical impedance spectroscopy",

abstract = "Electrochemical impedance spectroscopy is used to obtain the electrical properties of fly-ash over the frequency range 100Hz-10MHz. A range of presentation formalisms are exploited to characterize and assess this material in terms of its unburnt carbon content and pozzolanic reactivity. Fly-ash from a number of power stations within the UK, which differ in carbon content and fineness are used within the experimental programme. It is shown that the methodology could be exploited to index both the pozzolanicity and the presence of carbon in the ash. A number of additional features make this testing methodology of interest: the method is non-destructive and non-invasive; samples need not be restricted to cement pastes as mortars and concretes can also be studied.",

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AU - Suryanto, Benny

AU - McCarter, William John

AU - Starrs, Gerard

AU - Chrisp, T. Malcolm

PY - 2017/2/21

Y1 - 2017/2/21

N2 - Electrochemical impedance spectroscopy is used to obtain the electrical properties of fly-ash over the frequency range 100Hz-10MHz. A range of presentation formalisms are exploited to characterize and assess this material in terms of its unburnt carbon content and pozzolanic reactivity. Fly-ash from a number of power stations within the UK, which differ in carbon content and fineness are used within the experimental programme. It is shown that the methodology could be exploited to index both the pozzolanicity and the presence of carbon in the ash. A number of additional features make this testing methodology of interest: the method is non-destructive and non-invasive; samples need not be restricted to cement pastes as mortars and concretes can also be studied.

AB - Electrochemical impedance spectroscopy is used to obtain the electrical properties of fly-ash over the frequency range 100Hz-10MHz. A range of presentation formalisms are exploited to characterize and assess this material in terms of its unburnt carbon content and pozzolanic reactivity. Fly-ash from a number of power stations within the UK, which differ in carbon content and fineness are used within the experimental programme. It is shown that the methodology could be exploited to index both the pozzolanicity and the presence of carbon in the ash. A number of additional features make this testing methodology of interest: the method is non-destructive and non-invasive; samples need not be restricted to cement pastes as mortars and concretes can also be studied.

KW - Fly-ash

KW - Carbon

KW - Pozzolanicity

KW - Monitoring

KW - Electrical properties

U2 - 10.1016/j.proeng.2017.01.414

DO - 10.1016/j.proeng.2017.01.414

M3 - Article

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VL - 171

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EP - 714

JO - Procedia Engineering

JF - Procedia Engineering

T2 - 3rd International Conference on Sustainable Civil Engineering Structures and Construction Materials

Y2 - 5 September 2016 through 7 September 2016

ER -

Characterization of fly-ash using electrochemical impedance spectroscopy

Abstract

Keywords

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