Thesis

Browse

Subject: search.filters.subject.Sustainable Construction

Search Results

Now showing 1 - 7 of 7
  • Thumbnail Image
    Item
    Sustainable Potential of Recycled Textile Cotton Fiber Reinforced Concrete Beam
    (Daffodil International University, 2024-12-02) Nandi, Jagodish; Matubber, Muzahid; Islam, Md. Mirazul
    The construction industry significantly contributes to environmental degradation due to its high consumption of natural resources and waste production. To address these challenges, a growing interest is in developing sustainable construction materials that can reduce the industry's environmental footprint. This study explores the sustainable potential of recycled textile cotton fiber as a reinforcement material in concrete beams. Recycled cotton fibers, derived from textile waste, offer an eco-friendly substitute toconventional reinforcement materials, providing both waste management solutions and enhanced material properties. Consider how much the beam deflection and load are reduced or increased when replaced with steel-reinforced beams and consider where the textile reinforcement canbe used. A comparison of flexural behavior is made between reinforcement concrete beams and textile-reinforced concrete beams. Two different beams were constructed for comparison with reinforcement concrete beams. The research investigates the mechanical properties, durability, and environmental impact of recycled cotton fiber-reinforced concrete (RCFRC) beams through a series of experimental tests. Results indicate that incorporating recycled textile cotton fiber reinforced concrete beams can't be better than reinforced concrete beams the tensile strength, flexibility, and crack resistance of concrete beams while reducing the carbon footprint associated with traditional concrete production. Additionally, the use of recycled fibers aligns with circular economy principles, promoting resource efficiency and waste reduction. The reason for the research was to compare steel reinforcement concrete beams and what steel can be.
  • Thumbnail Image
    Item
    Egg Shells: Partial Replacement of Cement
    (Daffodil International University, 2024-06-25) Prince, Md. Jahid Hasan
    At present, the city is growing day by day. People are constantly moving towards a better life. Along with a better life, peoples are making the environment dirty. As of now, only 2.01 billion tons of municipal solid waste is generated in the world every year. As such, there are about 25 thousand tons of municipal solid waste in Bangladesh, which is a threat to the environment and our lives. On the other hand, new buildings are being built for a better life. Where rod, brick sand along with cement plays the most important role. Cement is very expensive nowadays. Even getting good quality cement is difficult. Certain ingredients are used in cement, notably ammonia or calcium nitrate and silicates, which in excess can damage the quality of cement and its color. Eggshells are waste material. Eggshells are usually easily available in biscuit and bread factories. The main component of eggshells is calcium carbonate. In this paper we can see how we can use eggshells powder as some partial replacement of cement where we have compared normal cement as well as partial mixture to get a better strength. We have used eggshells of 0%, 1%, 6%, 12% of cement. For this we did sieve analysis, a tensile and compressive test. By using eggshells powder, we can save some waste from the environment while being cost-effective. After the test we can say that 6% of eggshells powder can be replaced against cement.
  • Thumbnail Image
    Item
    Utilization of Waste Plastic Bottle to Plastic Brick
    (Daffodil International University, 2024-02-19) Akter, Asha
    The first characteristics is being ever great full and thankful to Allah for everything that you process including your wealth, and Health. Also I would like to express deep of my heart to my sincere supervisor Engr. Md. Imran Hasan Bappy Lecturer Department of Civil Engineering, Daffodil International University(DIU) Thank you for giving me this opportunity to work on unique topic. It has been an amazing journey to work under a great leader.
  • Thumbnail Image
    Item
    Sustainability Potential Of Nylon- Reinforced Concrete Beam
    (Daffodil International University, 2024-12-04) Sardar, Naimujjaman; Sakib, Sakhawat Islam
    Concrete is one of the most widely used construction materials worldwide, however its environmental impression, especially concerning of carbon emissions, has prodded a search for additional sustainable alternatives. This study investigates the capability of nylon-reinforced concrete beams as an economical answer for construction. In tension, concrete is frequently weaker than in compression. To expanded the tensile strength of cement, fibers are added. Nylon fibers (NF) have shown significant increases in concrete performance. The vital parts of this Nylon fiber (NF) concrete flowability, compressive strength, tensile strength, impact strength, rehabilitation, performance during irradiation, and fire resistance. In addition, the article examines the fracture behavior and failure patterns of nylon FRC. The outcomes show that NF upgraded concrete performance, notably tensile capacity, owing to bridging mechanisms, but lowered concrete flow properties. However, some analyst demonstrates that NF does not improved the compressive capacity significantly.
  • Thumbnail Image
    Item
    Sustainable Potential of Fiber Reinforced Concrete Beam- Analyzed With ETABS
    (Daffodil International University, 2024-12-08) Gazi, Md. Sajeeb; Mia, Md. Rubel
    This thesis details an experimental study that investigates the structural behavior of recycled fiber-reinforced concrete (FRC) beams. As a sustainable and renewable resource, fiber has garnered significant attention as a potential alternative to conventional steel reinforcement in structural elements. The research aims to evaluate the flexural performance and load-carrying capacity of FRC beams through a series of laboratory tests. The experimental program involves the fabrication and testing of multiple beam specimens with varying fiber reinforcement configurations, including different fibertypes, lengths, and orientations. Key parameters investigated include ultimate strength, deflection characteristics, crack propagation, and failure modes. Test results are compared with control beams reinforced with conventional steel bars to assess the feasibility and effectiveness of fiber reinforcement. Notably, using fiber in the reinforcement resulted in a crushing moment near the reinforced section. Furthermore, an analysis of concrete performance has been carried out using ETABS software. Cotton bars material property 2175 psi. Weight density 2-12 mm 70 lb/ft3, 3- 12 mm 115 lb/ft3. Polyester bars weight density 2-12 mm 80 lb/ft3, 3-12 mm 120 lb/ft3. Nylon bars weight density 2-12 mm 80 lb/ft3, 3-12 mm 120 lb/ft3. Mechanical properties, Modulus of elasticity (E):1115.31 lb/ft3, Minimum yield strength (FY) 42 lb/ft3, Minimum tensile strength (Fu) 43 lb/ft3.The findings from this study provide valuable insights into the potential utilization of fiber as an eco-friendly reinforcement material in civil engineering structures. The outcomes contribute to sustainable development by promoting the use of renewable resources in the construction industry, helping engineers and architects design safe and efficient structures that meet project requirements.
  • Thumbnail Image
    Item
    Utilization of Eggshell Powder as a Partial Replacement of Fine Aggregate
    (Daffodil International University, 2024-12-09) Rahman, Mostafizur
    As urban areas continue to expand, pursuing a better quality of life has led to increased environmental pollution. Currently, the world generates approximately 2.01 billion tons of municipal solid waste annually, with Bangladesh contributing around 25 thousand tons, posing significant environmental and health risks. Concurrently, the construction of new buildings, which heavily rely on materials like cement, is rising. However, the high cost and scarcity of quality cement, compounded by the detrimental effects of certain additives like ammonia, calcium nitrate, and silicates, present challenges. Eggshells, a readily available waste product from biscuit and bread factories, primarily contain calcium carbonate. This study explores the potential of using eggshell powder as a partial replacement for fine aggregate. By incorporating eggshell powder in varying proportions (0%, 3%, 9%, 15%), and conducting sieve analysis, Splitting tensile strength, and compressive tests, the research demonstrates that a 9% eggshell powder mixture can effectively replace fine aggregate. This approach not only mitigates waste but also offers a cost-effective solution.
  • Thumbnail Image
    Item
    Sustainability Potential of Polyester Fabric Reinforced Concrete Beam
    (Daffodil International University, 2024-12-12) Khan, Md. Abir; Bijoy, Mahidi Hasan
    Concrete reinforced with polyester fabric is a novel material that combines the improved performance qualities of polyester fabric reinforcement with the structural advantages of conventional concrete. This study assesses polyester fabric reinforced concrete beams' mechanical and structural performance in order to determine whether or not they can replace conventional steel reinforcement. Evaluating polyester fabric's effect on concrete beams' tensile strength, flexural performance, fracture resistance, and durability is the main goal. Reinforced concrete, made of polyester fabric, is incorporated into the concrete matrix to offer a corrosion-resistant, lightweight, and flexible reinforcing solution. Polyester fabric reinforcement improves load-bearing capacity and deformation control by strengthening the concrete's resistance to tensile stresses. In this study, the flexural strength and load-deflection behavior of beams reinforced with polyester fabric were assessed under both static and dynamic loading situations .In comparison to traditional concrete beams with steel reinforcement, the results demonstrated that polyester fabric reinforced concrete beams demonstrated increased crack resistance, higher energy absorption capacity, and decreased crack width. Furthermore, the addition of polyester fabric resulted in a decrease in the overall weight of the beam, making it an economical and environmentally friendly choice for building. The study also looked at the advantages of employing polyester fabric reinforcement for the environment, including how it can reduce steel use and be repurposed to meet global sustainability goals. According to the research, polyester fabric reinforced concrete beamsare a viable option for infrastructure projects that call for strong, long lasting, and environmentally friendly materials. Polyester fabric reinforced concrete beams not only exceed the mechanical performance requirements for structural applications, but they also help reduce the environmental impact of the building sector. And all the tests we have done are: compression test cylinder and beam, elongation test and pull-out test of polyester fabric.The main reason for doing this test is to check the bearing capacity of the rope and stability inside the concrete and to reduce the weight and cost of the beam.