International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 05 | May 2023
p-ISSN: 2395-0072
www.irjet.net
CHEMICALLY TREATED COIR FIBER REINFORCED CONCRETE Pooja B J1, Sanjay B M2, Varshini S R3, Yashwantha L4, Megha S Mahaladkar5 1,2,3,4BE Student, Dept. of Civil Engineering, Vidya Vikas Institute of Engineering and Technology, Karnataka, India 5 Assistant Professor, Dept. Of Civil Engineering, Vidya Vikas Institute of Engineering and Technology, Karnataka,
India ---------------------------------------------------------------------***--------------------------------------------------------------------1.1 Coconut Fiber (Coir Fiber) Abstract - The study of adding coir fiber (coconut fiber) into the concrete structure differs in many engineering properties. Concrete is having a low tensile and also a flexural property. However, conventional steel reinforced concrete structures are the most popular method developed to reduce such problem and it is rather to becoming expensive for construction in terms of its costs and sustainability issues also, because of these problems in many constructions industry they reduce the strength of steel there by decreasing the strength to overcome these problem, by adding of coir fiber to the concrete structure increases the tensile and also the flexural properties and coir fiber are normally available in nature and it is also ecofriendly. This experiment was conducted on high strength concrete with addition of coir fiber with a 4 mix proportions (0, 0.1%,0.2% and 0.3%) and the compressive strength and tensile strength of cured concrete is evaluated for 28days. Stem of dissemination of information about the flood will bring a peaceful mind to the households leaving in the flood prone zones, hence can save their lives and avoid huge damages which is occurring from the natural disasters.
Coconut fiber (coir fibers) are natural fibers derived from the husk of coconuts, which are the fruits of the coconut palm tree (Cocos nucifera). Fibers are extensively used in other properties due to their unique properties and versatility. Coconut fibers are obtained from the innermost layer of coconut husk, known as the mesocarp. The process typically involves soaking the husks in water to soften them, followed by mechanical processes such as beating or retting to separate the fibers from the rest of the husk. The fibers are then cleaned, dried, and further processed for different applications.
1.2 Types of Coir Fiber Coconut fibers are obtained from the outer husk of coconut shells and are largely used in various industries. There are classified into two types of coir fibers based on their extraction process and physical characteristics: 1. Brown coir fiber 2. White coir fiber
Key Words: Fiber-reinforced concrete, coir fibers, chemical treatment, interfacial bond, mechanical properties, sustainable construction.
Brown Coir Fibers: Brown coconut fibers are obtained from mature coconut husks. These fibers are thick, strong, and have a brownish color. They are naturally used in applications that require durability and strength, such as mattresses, ropes, carpets, and geotextiles. Brown coir fibers are also used for erosion control and landscaping purposes.
1.INTRODUCTION Natural fibers are organic fibers are plant sources and animal products. They are used by humans for thousands of years for wide range of applications to their abundance, versatility, and desirable properties. Fibers are extracted from the plants like sisal, coir, jute, and from animal sources like wool and silk. Natural fibers possess several advantageous properties are suitable for various applications. They are renewable and biodegradable, making them environmentally friendly alternatives to synthetic fibers. They also have excellent breathability, moisture absorption, and thermal insulation properties, making them comfortable to wear in clothing and textiles. In addition to their textile applications, plant fibers are largely used as reinforcement materials in composites, including in construction materials like concrete and plastics. Which increase the engineering properties of composites by providing strength, stiffness, and impact resistance.
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White Coir Fibers: White coir fibers are derived from immature or green coconut husks. They are softer, finer, and have a lighter color compared to brown coir fibers. White coir is primarily used in the production of products that require a finer texture, such as upholstery padding, cushioning materials, and decorative items. It is also used for making brushes, doormats, and filling material.
1.3 Test conducted Several tests are conducted on concrete to assess its quality, strength, durability, and other properties. Here are some commonly performed tests on concrete: 1. Compressive Strength Test: This is the most common and important test for concrete. It determines the
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