International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 01 | Jan 2025
p-ISSN: 2395-0072
www.irjet.net
INVESTIGATION ON KENAF FIBER CONCRETE WITH ZEOLITE POWDER AND POFA 1 Sk.Sahera, 2 Dr.K.Chandramouli, 3 J.Sree Naga Chaitanya,4M. Viharika 1,3 Assistant Professor, 2Professor & HOD, 4B. Tech Student
1,2,3&4Department of Civil Engineering, NRI Institute of Technology, Visadala (V), Medikonduru (M), Guntur,
Andhra Pradesh, INDIA. ------------------------------------------------------------------------***------------------------------------------------------------------------as a partial substitute for cement is examined in this Abstract:
study.The renewable natural fiber kenaf has drawn interest due to its biodegradability, high tensile strength, and light weight. By increasing the composite's tensile and flexural strength, it can be added to concrete to improve durability and crack resistance. In the meantime, zeolite powder, a mineral with a strong pozzolanic activity, serves as an SCM, enhancing chemical durability and strength. Its high surface area and porous structure facilitate the hydration process, which may increase the density and decrease permeability of the concrete. Additionally, a rich source of silica, palm oil fuel ash (POFA), a byproduct of the palm oil industry, can aid in the pozzolanic reactions in concrete, increasing its compressive strength and offering a sustainable waste management solution. POFA replaces cement at percentages of 10%, 20%, and 30%, whereas zeolite powder is utilized as a partial substitute for cement at different percentages of 5%, 10%, and 15%. Furthermore, 0.5%, 1%, and 1.5% of kenaf fiber are added to the concrete mixture.
This study examines the strength characteristics of concrete reinforced with kenaf fiber, in which cement is partially replaced by zeolite powder and palm oil fuel ash (POFA). As an environmentally friendly way to increase tensile and flexural strength while lowering total weight, the use of natural fibers, like kenaf, in concrete is being investigated. POFA, a byproduct of the palm oil industry, is used to further improve cementitious qualities and lessen the environmental impact, while zeolite powder is added to increase the concrete's durability and resilience to chemical attacks.The compressive, tensile, and flexural strengths of concrete samples with different proportions of zeolite and POFA replacements were assessed by a variety of tests.The goal of the study is to identify the ideal ratio of POFA, kenaf fiber, and zeolite powder that will increase strength without sacrificing workability. According to preliminary findings, concrete's mechanical qualities are improved when zeolite powder and POFA are used in place of some of the cement and reinforced with kenaf fibers. This study offers a sustainable answer for the building sector by presenting an environmentally friendly substitute for conventional concrete that may lessen the carbon footprint of cement production.to assess split tensile and compressive strength after 28 days, 56 days, and 90 days.
2. OBJECTIVES 1. To investigate the impact of POFA and zeolite powder as partial cement substitutes on the split tensile and compressive strengths of concrete. 2. To examine how kenaf fiber strengthens concrete and whether it can increase durability.
Key words: Kenaf fiber , Palm Oil Fuel Ash, Zeolite Powder , Reinforcement, Compressive strength and Split tensile strength .
3. To determine the best combination of these materials that preserves workability while optimizing strength characteristics.
1. INTRODUCTION
3. MATERIALS
Because of increased worries about the impact cement production has on the environment, resource depletion, and greenhouse gas emissions, the building industry has been looking more and more into sustainable alternatives to conventional materials. Using natural fibers and supplemental cementitious materials (SCMs) to enhance concrete's mechanical qualities while lowering its need on conventional cement is one promising approach. The potential of using kenaf fiber, zeolite powder, and palm oil fuel ash (POFA) in concrete
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3.1 Cement: Cement is a finely crushed powder made of a mixture of clay, limestone, and other minerals that undergo a chemical reaction called hydration to form a solid binding material when combined with water. It is the primary ingredient of concrete, which gives various structures their strength and stability. Finding sustainable alternatives and additions is essential to reducing cement's detrimental environmental
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