International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 08 | Aug 2022
p-ISSN: 2395-0072
www.irjet.net
Partial Replacement of Concrete with Sisal Fibre Tanveer Ansari1 Abhishek Mishra2 Kumar Vanshaj3 1MTech
Student Structural Engineering, Institute of Engineering & Technology Lucknow Professor CED, Institute of Engineering & Technology Lucknow 3Assistant Professor CED, Institute of Engineering & Technology Lucknow ---------------------------------------------------------------------***--------------------------------------------------------------------Two factors affect how well fiber-reinforced cementitious Abstract - Concrete is a mix of cement, water, fine and 2Assistant
composites withstand time-dependent impacts. The first relates to the material's strength and durability in maintaining its qualities over time under various exposures and settings, while the second speaks to the material's ability to withstand deformations over time. The sisal fibers durability is tied to it as already demonstrated in earlier works, deterioration occurs in a matrix environment with a high concentration of calcium hydroxide Sisal is a natural fiber, however with time, the fiber matrix interface can become damaged from the impacts of fiber swelling and shrinkage. The deterioration of lignin and hemicellulose as well as calcium hydroxide precipitation's mineralization can be linked to the degrading mechanisms in natural fibers.
coarse aggregate that may be poured and hardens to become a sturdy building material. The globe over, concrete is a crucial construction material that is used extensively. Tension is weak in concrete. Different types of fibers are added to concrete in varying quantities to increase its tensile strength. Concrete that self-compacts can spread and flow into the form without the use of mechanical vibration. It may be utilized in situations where compacting freshly laid concrete would be laborious, such as underwater concreting, pile foundations, and walls with crowded reinforcing. The primary goal of this project is to use natural fiber to improve the performance of self-compacting concrete (sisal fiber). In order to halt the cracks, the aforementioned fibers are used; fibers might continue to hold the matrix together even after a crack is developing. The machine-decortication technique produces the fibers. This study examines the qualities of freshly-poured and hardened concrete with reinforced sisal fiber SCC at various fiber adding rate. In order to improve the mechanical properties of concrete it will be replaced by sisal fiber as 0.5% ,1% and 1.5% by volume for M-45 design mix. The concrete specimens will be tested for compressive strength at 7 ,14 and 28 days respectively and Split tensile Strength at 7 and 28 days and Compressive Strength test at 28 days also the results obtained will be compared with those of traditional concrete.
1.1 Experimental program Materials and processing Sisal Fiber The Brazilian city of Valente in the state of Bahia provided the sisal fibers utilized in this piece. Decortication, a method, was used to separate these fibers from the Agave sisalana plant's leaves. To enhance the performance of the created composites, the fibers underwent a process to eliminate impurities before usage. The fibers were delivered in bundles with a length of around 100 cm. During this procedure, the fibers are submerged in water that has been heated to about 70 C with a 5 C temperature difference for about an hour, and they are then dried at room temperature for 48 hours. Following that, the threads are brushed to separate them into individual filaments.
Key Words: Sisal fiber, concrete, compressive test, aggregate, flexural test.
1. INTRODUCTION In recent years, cementitious composite materials reinforced with natural fibers have emerged as appealing low-cost and environmentally friendly alternatives to the widely used synthetic fibers in civil engineering. These fibers are readily available, cost-effective, and produce fewer hazardous fumes during production. Use of supplemental cementitious materials, such as fly ash and metakaolin, as partial fillers is an alternative to increase their durability alternatives to cement. Additionally, the utilization of these materials decreases cement use, which has the effect of the synthesis of carbon dioxide and its atmospheric release. One of the most popular natural fibers in the world, sisal fiber plays a significant role in the creation of textile fibers. The use of sisal fibers as reinforcement for cementitious matrices has thus been the subject of several, significant investigations.
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The structure of the sisal fiber is hierarchical and intricate. Numerous elongated individual fibers, also known as fibercells, make up each fiber. In the microscale, each fiber-cell is made up of four main components: the primary wall, secondary wall, tertiary wall, and lumen. Each of these components is composed of cellulose, lignin, pectin, and hemicellulose at the nanoscale. Since the primary components (cellulose, hemicellulose, pectin, and lignin) are important for the composite binding behavior, fiber toughness and strength, the composition of the fibers may have an effect on their mechanical qualities. In addition to the chemical makeup, shape also affects the characteristics of fibers. For instance, the lumen can be round, polygonal, or elliptical, and together with the pores, they form the fibers'
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