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K.Hemantha Raja,
Dr.K.Shyam Prakash,
- Assistant Professor, Department of Civil Engineering, Koneru Lakshmaiah Education Foundation (KL Deemed to be University), Guntur, Vaddeswaram, India
- Assistant Professor, Department of Civil Engineering, PVP Siddhartha Institute of Technology, Kanuru, Vijayawada, India
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The goal of this project was to manufacture fly ash-based geopolymer concrete (FAC), a more environmentally friendly substitute for conventional Portland cement concrete (OPC) by using fly ash (FA) in place of cement. The study discovered that the properties of FAC were comparable to those of OPC, and that the concrete’s performance was greatly impacted by the geopolymer’s polymeric nature. The geopolymerization process was started with an alkaline solution, and fly ash and alkaline mixes (NaOH and Na2SiO3) were made by combining the two solutions in a 1.2 ratio. The inclusion of hooked fibers to FAC resulted in enhanced post-cracking behavior, reduced shrinkage, and increased mechanical strength and ductility when compared to other types of fibers. In compliance with Indian norms, the study evaluated the flexural behavior, splitting tensile strength, and compressive strength of the FAC samples. The samples were tested for compressive, tensile, and flexural strengths using three different molarities: 8 M, 10 M, and 12 M. They also underwent a 28-day curing process in water. The results demonstrated that the FAC samples had significantly improved mechanical properties, with the maximum tensile and flexural strengths at 12 M molarity and higher compressive strength. The findings show that FAC is a viable and ecologically friendly replacement for OPC in a variety of construction applications due to its comparable mechanical performance to OPC.
Keywords: Aggregate, Fly ash,Geopolymer concrete, Steel fiber, Durability, NaOH, Na2SiO3, Strengthimpact.
K.Hemantha Raja, Dr.K.Shyam Prakash. INVESTIGATION ON MECHANICAL PROPERTIES OF GEO POLYMER CONCRETE WITH FLY ASH AND STEEL FIBERS. Journal of Polymer and Composites. 2024; ():-.
K.Hemantha Raja, Dr.K.Shyam Prakash. INVESTIGATION ON MECHANICAL PROPERTIES OF GEO POLYMER CONCRETE WITH FLY ASH AND STEEL FIBERS. Journal of Polymer and Composites. 2024; ():-. Available from: https://journals.stmjournals.com/jopc/article=2024/view=0
References
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1. Shahin Charkhtab Moghaddam. Mechanical properties of fly ash-based geopolymer concrete with crumb rubber and steel fiber under ambient and sulfuric acid conditions. Islamic Azad University; 2021 Feb 20. 2. Meor Ahmad Faris. Comparison of Hook and Straight Steel Fibers Addition on Malaysian Fly Ash-Based Geopolymer Concrete on the Slump, Density, Water Absorption and Mechanical Properties. University Malaysia Perlis (UniMAP); 2021 Mar 9. 3. Islam A, Alengaram UJ. Influence of steel fibers on the mechanical properties and impact resistance of lightweight geopolymer concrete. University of Malaya; 2017 Jun 16. 4. Vijai K. Effect of Inclusion of Steel Fibers on the Properties of Geopolymer Concrete Composites. Easa College of Engineering & Technology; 2011 Sep 10. 5. Gomes RF. Applied Fracture Mechanics. 2020. 6. Mehta PK, Monteiro PJ. Concrete: microstructure, properties, and materials. New York: McGraw-Hill; 2006. 7. Salloum T. Effect of fly ash replacement on alkali and sulphate resistance of mortars. Diss. Concordia University; 2007. 8. Davidovits J. High-alkali cements for 21st century concretes. ACI Special Publication. USA; 1994. p. 383–98. 9. Mehta PK. Reducing the environmental impact of concrete. Concrete Int. 2001;23(10):61–6. 10. Gunasekara C, Setunge S, Law DW. Long-Term Mechanical Properties of Different Fly Ash Geopolymers. ACI Struct J. 2017;114(3).
Journal of Polymer and Composites
| Volume | |
| Received | 10/05/2024 |
| Accepted | 27/08/2024 |
| Published | 06/12/2024 |