Journal cover

Structural Characteristics of High Volume Fly ash Concrete Subjected to Elevated Temperature

S. Vamshi Krishna and Dr. J. Rex
International Journal of Analytical, Experimental and Finite Element Analysis
Volume 10: Issue 3, August 2023, pp 68-76

Author's Information

Dr. J. Rex 2 

Corresponding Author
2Department of Civil Engineering,Malla Reddy Engineering College, Hyderabad
rexdindigul@gmail.com

S. Vamshi Krishna1

1Department of Civil Engineering,Malla Reddy Engineering College, Hyderabad
Article -- Peer Reviewed
Published online – 25 August 2023

Open Access article under Creative Commons License

Cite this article – S. Vamshi Krishna , Seong-Won Seo, Gu-Sung Kim, “Structural Characteristics of High Volume Fly ash Concrete Subjected to Elevated Temperature”, International Journal of Analytical, Experimental and Finite Element Analysis, RAME Publishers, vol. 10, Issue 3, pp. 68-76, August 2023.
https://doi.org/10.26706/ijaefea.3.10.20230801

Abstract:-
Fly ash is a mineral additive that is added to concrete to increase the material's strength and longevity. Fly-ash concrete lost its strength because of the chemical shift in the gel brought on by the high temperatures. The matrix bonding weakened as a result, which resulted in the loss of strength. Fly ash may be used in concrete in a variety of ways, including as an additive, a partial replacement for cement, a full or partial replacement for fine aggregates, or as an extra component that contributes to the development of a variety of various properties. The electricity, nuclear, and oil and gas industries are just a few of the many global businesses that often employ pozzolanic concrete. Additionally, pozzolanic concrete is used to build tunnels and bridges. These concrete slabs have been exposed to the elements for a long time, which has caused high temperatures to be created inside of them in addition to the usual danger of fire. Even though it is well known that concrete is a substance that does not readily catch fire, concrete that is exposed to very high temperatures nevertheless can sustain significant harm, including a full and total collapse. The compressive strength, split tensile strength, and modulus elasticity of fly ash concrete were examined at temperatures as high as 120 degrees Celsius. In the experiment, a mix ratio of 1:1.45:2.2:1.103 and a water-cement ratio of 0.5 by weight were used. Fly ash was used as a substitute for cement in a variety of ways throughout this experiment. The elastic modulus of the material, as well as its split tensile strength and compressive strength, were also studied. The replacement ratios were 30, 40, and 50%, depending on the quantity of cement utilized. The compressive strength, split tensile strength, and elastic modulus of each kind of fly-ash concrete were evaluated at a variety of temperatures and after a certain length of curing time (between 28 and 56 days). The test findings showed that the elastic modulus, compressive strength, and split tensile strength of concrete with up to 30% cement replacement were equivalent to those of reference concrete without fly ash. The performance of the control mixture was superior to that of concrete mixes that incorporated 30, 40, or 50% fly ash in lieu of cement in terms of compressive strength, split tensile strength, and elastic modulus. Regardless of how long ago the pairings were created, this was always the case. On the other side, a combination's efficacy will improve with time. The compressive strength of concrete mixes containing 30, 40, or 50% fly ash instead of cement is decreased by 11.4%, 30.1%, 28.9%, and 27.5%, respectively, at a temperature of 120 degrees Celsius when compared to concrete compositions without fly ash.
Index Terms:-
Fly ash, Pozzolanic concrete, compressive strength, and split tensile strength, elastic modulus, temperatures.
REFERENCES
  1. Luigi Biolzi, Sara Cattaneo, Gianpaolo Rosati, “Evaluating residual properties of thermally damaged concrete”, Cement and Concrete Composites, Volume 30, Issue 10, November 2008, Pages 907-916.
    Crossref
  2. IS: 8112-1989, Specifications for 43-Grade Portland cement, Bureau of Indian Standards, New Delhi, India. A N Author, B O Author and C I Author (1990), Article in a regular journal, Intl.
  3. J. Autom. Control, 4, 11, pp. 23124 Cheng, F.P., Kodur, V.K.R., and WangT.C., Stress- Strain Curves for High Strength Concrete a Elevated Temperatures, Journal of Materials in Civil Engineering, ASCE, Jan-Feb 2004, pp. 84-90.
  4. Estakhri, C., and Mohidekar, S.D., Potential for reduced greenhouse gas Emissions in texas through the use of High volume fly ash concrete, Research Report 167709-1, March 2004.
    Crossref
  5. Felicetti, R., and Gambarova, P.G., Effects of High Temperature on the Residual Compressive Strength of High-Strength Siliceous Concretes, ACI Materials Journal, Vol. 95, No. 4, July- Aug. 1998, pp. 395-406.
    Crossref
  6. Fu, Y.F., Wong, Y.L., Tang, C.A., and Poon, C.S., Thermal induced stress and associated cracking in cement-based composite at elevated temperatures-Part II: thermal cracking around multiple inclusions, Cement and Concrete Composites, Vol. 26, 2004, pp. 113-126.
    Crossref
  7. Ghosh, S., and Nasser, K.W., Effects of High Temperature and Pressure on Strength and Elasticity of Lignite Fly Ash and Silica Fume Concrete, International Concrete Abstracts Portal, Volume: 93, Issue: 1, 1996, pp 41-50.
    Crossref
  8. Tingjie Huang, Qiang Yuan, Shenghao Zuo, Hao Yao, Kai Zhang, Yuman Wang, Youjun Xie, Caijun Shi, “Physio-chemical effects on the temperature-dependent elasticity of cement paste during setting”, Cement and Concrete Composites, Volume 134, November 2022.
    Crossref
  9. Poon, C.S., Shui, Z.H., and Lam, L., Compressive behavior of fiber reinforced high- performance concrete subjected to elevated temperatures, Cement and Concrete Research, Vol. 34, 2004, pp. 2215-2222.
    Crossref
  10. Ravindrarajah, R.S., Lopez,R., and Reslan, H., Effect Of Elevated Temperature On The Properties Of High-Strength Concrete Containing Cement Supplementary Materials, 9th International Conference on Durability of Building Materials and Components, Brisbane, Australia, 17-20th March, 2002.
  11. Sakr, K., and Hakim, E., Effect of high temperature or fire on heavy weight concrete properties, Cement and Concrete Research, Vol. 35, 2005, pp. 590-596.
    Crossref
  12. Savva, A., Manita, P., and Sideris, K.K., Influence of elevated temperatures on the mechanical properties of blended cement concretes prepared with limestone and siliceous aggregates, Cement and Concrete Composites, Vol. 27, 2005, pp. 239-248.
    Crossref
  13. Schindler,A.K., and McCullough,B.F., The Importance of Concrete Temperature Control During Concrete Pavement Construction in Hot Weather Conditions, Transportation Research, January 2002.
    Crossref3
  14. Shin, K.Y., Kim, S.B., Kim, J.H., Chung, M., and Jung, P.S., Thermo-physical properties and transient heat transfer of concrete at elevated temperatures, Nuclear Engineering and Design, Vol. 212, 2002, pp. 233-241.
    Crossref
  15. Terro, M.J., Properties of concrete made with recycled crushed glass at elevated temperatures, Building and Environment, Vol. 41, 2006, pp. 633–639.
    Crossref
  16. Wong, Y.L., Poon, C.S., and Azhar, S., Concrete under Fire: Damage Mechanisms and Residual Properties, Concrete Technology Group Department of Civil and Structural Engineering, The Hong Kong Polytechnic

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"/> Structural Characteristics of High Volume Fly ash Concrete Subjected to Elevated Temperature
Journal cover

Structural Characteristics of High Volume Fly ash Concrete Subjected to Elevated Temperature

S. Vamshi Krishna
International Journal of Analytical, Experimental and Finite Element Analysis
Volume 10: Issue 1, March 2023, pp 21-28

Author's Information

S. Vamshi Krishna 1 

Corresponding Author
1Department of Civil Engineering,Malla Reddy Engineering College, Hyderabad
rexdindigul@gmail.com
Article -- Peer Reviewed
Published online – 31 March 2023

Open Access article under Creative Commons License

Cite this article – S. Vamshi Krishna , “Structural Characteristics of High Volume Fly ash Concrete Subjected to Elevated Temperature”, International Journal of Analytical, Experimental and Finite Element Analysis, RAME Publishers, vol. 10, issue 1, pp. 21-28, March 2023.
https://doi.org/10.26706/ijaefea.3.10.20230801

Abstract:-
Fly ash is a mineral additive that is added to concrete to increase the material's strength and longevity. Fly-ash concrete lost its strength because of the chemical shift in the gel brought on by the high temperatures. The matrix bonding weakened as a result, which resulted in the loss of strength. Fly ash may be used in concrete in a variety of ways, including as an additive, a partial replacement for cement, a full or partial replacement for fine aggregates, or as an extra component that contributes to the development of a variety of various properties. The electricity, nuclear, and oil and gas industries are just a few of the many global businesses that often employ pozzolanic concrete. Additionally, pozzolanic concrete is used to build tunnels and bridges. These concrete slabs have been exposed to the elements for a long time, which has caused high temperatures to be created inside of them in addition to the usual danger of fire. Even though it is well known that concrete is a substance that does not readily catch fire, concrete that is exposed to very high temperatures nevertheless can sustain significant harm, including a full and total collapse. The compressive strength, split tensile strength, and modulus elasticity of fly ash concrete were examined at temperatures as high as 120 degrees Celsius. In the experiment, a mix ratio of 1:1.45:2.2:1.103 and a water-cement ratio of 0.5 by weight were used. Fly ash was used as a substitute for cement in a variety of ways throughout this experiment. The elastic modulus of the material, as well as its split tensile strength and compressive strength, were also studied. The replacement ratios were 30, 40, and 50%, depending on the quantity of cement utilized. The compressive strength, split tensile strength, and elastic modulus of each kind of fly-ash concrete were evaluated at a variety of temperatures and after a certain length of curing time (between 28 and 56 days). The test findings showed that the elastic modulus, compressive strength, and split tensile strength of concrete with up to 30% cement replacement were equivalent to those of reference concrete without fly ash. The performance of the control mixture was superior to that of concrete mixes that incorporated 30, 40, or 50% fly ash in lieu of cement in terms of compressive strength, split tensile strength, and elastic modulus. Regardless of how long ago the pairings were created, this was always the case. On the other side, a combination's efficacy will improve with time. The compressive strength of concrete mixes containing 30, 40, or 50% fly ash instead of cement is decreased by 11.4%, 30.1%, 28.9%, and 27.5%, respectively, at a temperature of 120 degrees Celsius when compared to concrete compositions without fly ash.
Index Terms:-
Fly ash, Pozzolanic concrete, compressive strength, and split tensile strength, elastic modulus, temperatures.
REFERENCES
  1. Balakov Yu. N., Safety of power plants in questions and answers / Yu.N. Balakov - Pract. manual, part 1 - M. Ed. MPEI, 2008 .—768 p.
  2. Bogoslovsky V.N. Heating and ventilation / V.N. Bogoslovsky, V.I. Novozhilov, B.D. Simakov, V.P. Titov. Ed. V.N. Bogoslovsky, part 2, Ventilation - M., Stroyizdat, 1976.- 439 p.
  3. Bogoslovsky V.N. Thermophysics of heat recovery devices for heating, ventilation and air conditioning systems / V.N. Bogoslovsky, M. Ya. Pos.- M .: Stroyizdat, 1983. – 320 p.
  4. Golubkov B.N. Heat engineering equipment and heat supply of industrial enterprises / B.N. Golubkov, O. L. Danilov, L.V. Zosimovsky and others; Ed. B.N. Golubkov. - 2nd ed. revised - M .: Energiya, 1979 – 544 p.
  5. Krupnov B.A. Heating devices manufactured in Russia and the Near Abroad / B.A. Krupnov, D.B. Krupnov. 3rd ed. add. and revised - M.: Publishing house of the Association is building. Universities, 2010.– 152 p.
  6. Lebedev PD Heat exchange, drying and refrigeration units. - 2nd ed. revised - M.: Energiya, 1972. – 320 p.
  7. Nazmeev Yu.G. Heat power systems and energy balances of industrial enterprises. SOUTH. Nazmeev, I.A. Konokhina. - study. allowance, - M. Ed. MPEI, 2003. – 407 p.
  8. Industrial heat and mass transfer processes and installations. / Ed. A.M. Baklastova / -M.: Energoatomizdat, 1986. – 328 p.
  9. Industrial heat and power engineering and heat engineering: Handbook / Under. ed. V. A. Grigorieva and V. M. Zorin / - M .: Energoatomizdat, 1991 .-- 588 p.
  10. D. V Bhise, S. A. Choudhari, M. A. Kumbhalkar, M. M. Sardeshmukh, “Modelling the Critical Success Factors for Advanced Manufacturing Technology Implementation in Small and Medium Sized Enterprises”, 3C Empresa, Ed. 50 Vol. 11 No. 2, August - December 2022, pp 263 - 275.
    Crossref
  11. Bhise, D. V., Choudhari, S. A., Kumbhalkar, M., & Sardeshmukh, M. M., “Assimilation of advanced manufacturing technologies in small and medium sized enterprises: an empirical analysis”, Multidisciplinary Science Journal, volume 5, issue 4, 2023.
    Crossref
  12. SP 41–101–95 Designing of heating points - M.: Ministry of Construction of Russia, 1976. - 78p.

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