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Home»Articles»Experimental Study of Strength and Corrosion Resistive Property of Fly Ash Concrete with Inhibitors

Experimental Study of Strength and Corrosion Resistive Property of Fly Ash Concrete with Inhibitors

Author : B. Akhila and M. Sivagami
Volume 7 No.1 January-June 2018 pp 32-36

Abstract

The present study describes the behavior of concrete as well as fly ash concrete when subjected to varying number of high temperature heating cycles. A Concrete mix (1:1.5:3) with 320 kg/m3 cement and w/cm ratio 0.55 was prepared. Cement was replaced by varying percentages (10%, 20%, 40%, 50% and 60%) of fly ash by weight of cement. The concrete was subjected to a constant temperature of 200°C for 7, 14, 21 and 28 heating cycles. One heating cycle corresponds to 8 h heating and subsequent cooling in 24 h. From the literatures it is to be noted that fly ash can be used as partial replacement of cement and in production of lightweight aggregate. Concrete grade considered for experimental study is M20 with 43 grades OPC. Binding material used for concrete is cement with percentage replacement of fly ash as 10% to 50%. 20mm angular granite broken stones conforming to single size aggregate as IS 383-1970 is used as coarse aggregate. The annual consumption of concrete is about fifteen billion tone annually. At the same time abundant quality of fly ash from thermal power plants are being thrown out as waste which creates severe ecological problems and requires larger storage area. The experiment will comprise of strength and durability study on concrete with high volume fly ash. Half-cell potential measurements are simple, inexpensive and virtually non-destructive techniques to assess the corrosion risk of steels in concrete. However, the negative potential area on the equipotential contour map corresponds to high chloride content and localized corrosion. The measured values of the half-cell potential fluctuate due to several factors: the temperature, the type of reference electrode, and the pre-wetting time.

Keywords

Corrosion, Resistive Property, Fly Ash, Concrete, Inhibitors

Full Text:

References

[1] Indian Standard, “Methods of Tests for Strength of Concrete”, IS: 516, Bureau of Indian Standards, 1999.
[2] Indian Standard, “Methods of Test for Strength of Concrete”, IS: 516, Bureau of Indian Standards, New Delhi, 1959.
[3] Fourth Revision, “Plain and Reinforced Concrete Code of Practice”, IS: 456, 2000.
[4] Arivazhagan, “Study on the Environmental Benefit with Fly Ash”, Journal of Environmental study, Vol. 141, No. 5, 2011.
[5] M. S. Shetty, “Concrete Technology”, pp. 124-14.
[6] N. Krishna Raju, “Concrete Mix Design”.
[7] H. Saricimen, “Effectiveness of Concrete Inhibitors in Retarding Rebar Corrosion”, Vol. 36, pp. 50, 1961.
[8] Vinod Goud, “Partial Replacement of Cement with Fly ash in Concrete and its Effect”, Vol. 6, No. 10, pp. 69-75, 2016.
[9] FaKeith Bargaheiser, “Benefit of using Fly ash in Preventing Corrosion Damage in Concrete”, Vol. 2, No. 48, 2007.
[10] S. S. Reshi, “A Fly Ash Hydraulic Binder”, The Indian Concrete Journal, Vol. 4, 1963.
[11] Philip L. Owens, “Effect of Soaking Period on High CaO Fly Ash Properties for Utilization in Cement Application”, Vol. 14, No. 3, pp. 274-277, 1979.

The Asian Review of Civil Engineering (TARCE) is a half-yearly international peer-reviewed journal of Civil Engineering. One of the objectives of this journal is to disseminate knowledge on various research issues connected with the topics include, but are not limited to:

Coastal engineering
Construction engineering
Earthquake engineering
Environmental engineering
Geotechnical engineering
Water resources engineering
Materials engineering
Structural engineering
Surveying
Transportation engineering
Municipal or urban engineering

The present study describes the behavior of concrete as well as fly ash concrete when subjected to varying number of high temperature heating cycles. A Concrete mix (1:1.5:3) with 320 kg/m3 cement and w/cm ratio 0.55 was prepared. Cement was replaced by varying percentages (10%, 20%, 40%, 50% and 60%) of fly ash by weight of cement. The concrete was subjected to a constant temperature of 200°C for 7, 14, 21 and 28 heating cycles. One heating cycle corresponds to 8 h heating and subsequent cooling in 24 h. From the literatures it is to be noted that fly ash can be used as partial replacement of cement and in production of lightweight aggregate. Concrete grade considered for experimental study is M20 with 43 grades OPC. Binding material used for concrete is cement with percentage replacement of fly ash as 10% to 50%. 20mm angular granite broken stones conforming to single size aggregate as IS 383-1970 is used as coarse aggregate. The annual consumption of concrete is about fifteen billion tone annually. At the same time abundant quality of fly ash from thermal power plants are being thrown out as waste which creates severe ecological problems and requires larger storage area. The experiment will comprise of strength and durability study on concrete with high volume fly ash. Half-cell potential measurements are simple, inexpensive and virtually non-destructive techniques to assess the corrosion risk of steels in concrete. However, the negative potential area on the equipotential contour map corresponds to high chloride content and localized corrosion. The measured values of the half-cell potential fluctuate due to several factors: the temperature, the type of reference electrode, and the pre-wetting time.

Editor-in-Chief
Prof. Francesco Colangelo
Department of Engineering, Universita degli Studi di Napoli Parthenope, Italy
[email protected]
Editorial Advisory Board
Dr. Suhana Binti Koting
Department of Civil Engineering, University of Malaya, Malaysia
[email protected]
Dr. Abdul Rahman Mohd. Sam
Department of Structure and Materials, Universiti Teknologi Malaysia
[email protected]
Prof. Sr Mokhtar Azizi Bin Mohd Din
Department of Civil Engineering, University of Malaya, Malaysia
[email protected]
Prof. N. Anuja
Department of Civil Engineering, Mepco Schlenk Engineering College, Sivakasi, India
[email protected]
Dr. Ramadhansyah Putra Jaya
Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
[email protected]
Dr. Johan Bin Sohaili
Department of Civil Engineering , Universiti Teknologi Malaysia
[email protected]
Dr. Norhisham Bin Bakhary
Department of Structure and Materials, Universiti Teknologi Malaysia
[email protected]
Dr. Sitti Asmah Hassan
Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
[email protected]
Dr. Libriati Binti Zardasti
Department of Structures and Materials, Universiti Teknologi Malaysia
[email protected]
Dr. Nor Zurairahetty Mohd Yunus
Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
[email protected]
Dr. Zaiton Haron
Department of Structure and Materials, Universiti Teknologi Malaysia
[email protected]
Dr. Rini Asnida Abdullah
Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
[email protected]
Dr. Mohd Razman bin Salim
Department of Environmental Engineering, Universiti Teknologi Malaysia
[email protected]
Dr. Norhidayah Abdul Hassan
Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
[email protected]
Dr. Yuen Choon Wah
Department of Civil Engineering, University of Malaya, Malaysia
[email protected]

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    Editorial Note

    Editorial Prof. Francesco Colangelo

    Editor-in-Chief
    Prof. Francesco Colangelo
    Department of Engineering, Universita degli Studi di Napoli Parthenope, Italy
    [email protected]
    Editorial Advisory Board
    Dr. Suhana Binti Koting
    Department of Civil Engineering, University of Malaya, Malaysia
    [email protected]
    Dr. Abdul Rahman Mohd. Sam
    Department of Structure and Materials, Universiti Teknologi Malaysia
    [email protected]
    Prof. Sr Mokhtar Azizi Bin Mohd Din
    Department of Civil Engineering, University of Malaya, Malaysia
    [email protected]
    Prof. N. Anuja
    Department of Civil Engineering, Mepco Schlenk Engineering College, Sivakasi, India
    [email protected]
    Dr. Ramadhansyah Putra Jaya
    Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
    [email protected]
    Dr. Johan Bin Sohaili
    Department of Civil Engineering , Universiti Teknologi Malaysia
    [email protected]
    Dr. Norhisham Bin Bakhary
    Department of Structure and Materials, Universiti Teknologi Malaysia
    [email protected]
    Dr. Sitti Asmah Hassan
    Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
    [email protected]
    Dr. Libriati Binti Zardasti
    Department of Structures and Materials, Universiti Teknologi Malaysia
    [email protected]
    Dr. Nor Zurairahetty Mohd Yunus
    Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
    [email protected]
    Dr. Zaiton Haron
    Department of Structure and Materials, Universiti Teknologi Malaysia
    [email protected]
    Dr. Rini Asnida Abdullah
    Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
    [email protected]
    Dr. Mohd Razman bin Salim
    Department of Environmental Engineering, Universiti Teknologi Malaysia
    [email protected]
    Dr. Norhidayah Abdul Hassan
    Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
    [email protected]
    Dr. Yuen Choon Wah
    Department of Civil Engineering, University of Malaya, Malaysia
    [email protected]

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