International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 11 Issue: 06 | Jun 2024
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p-ISSN: 2395-0072
UTILIZATION OF WASTE MATERIALS IN THE CONSTRUCTION OF RIGID PAVEMENT Suryakant Maurya1, Mr. Ushendra Kumar2 1Master of Technology, Civil Engineering, Lucknow Institute of Technology, Lucknow, India
2Head of Department, Department of Civil Engineering, Lucknow Institute of Technology, Lucknow, India
---------------------------------------------------------------------***--------------------------------------------------------------------through resource depletion. Recent technological progress Abstract - The project aims to find suitable waste materials from various industries and the environment to replace cement and aggregate in highway construction. Global studies have highlighted the negative impacts of waste materials on the environment and human health, emphasizing the need for substitutes with similar properties to cement. Using waste materials in construction reduces the reliance on cement, cutting costs and minimizing harmful effects. Proper design and material selection are crucial in incorporating waste materials into pavement construction to ensure longevity and durability. Construction practices like placement, compaction, and curing also play a significant role in the durability of concrete pavements. The focus of the project is on utilizing plastic waste and Electric Arc Furnace Slag (EAFS) as replacements for coarse aggregate and cement, respectively. Tests were conducted to determine standard values and ranges for these materials, establishing a relationship between different proportions of plastic aggregate and EAFS and compressive strength values. Substituting 20% of cement with EAFS resulted in a 4.58MPa increase in compressive strength at 7 days, with the highest value recorded for unmodified concrete at 28 days. The difference in compressive strength values decreased with higher percentages of coarse aggregate substitution. The optimal value was found at 2.5% replacement of coarse aggregate with plastic aggregate for 7 and 14 days, while the highest value was observed at 5% replacement for 28 days.
underscores the importance of using industrial and organic waste materials as alternative resources for manufacturing a variety of valuable products. Common solid wastes such as plastic waste, EAFS, rice husk, and discarded construction materials can be repurposed through strategies involving partial cement replacement to meet the growing demand for cement and concrete. Plastic waste, in particular, poses challenges due to its slow decomposition rate and extended lifespan. Improper disposal of plastic waste contributes to environmental deterioration and economic burdens, resulting in contamination of the food chain, loss of biodiversity, energy inefficiencies, and financial repercussions. Additionally, the presence of EAFS in industrial settings presents health risks to workers and creates unfavorable working conditions. To tackle these issues, the integration of plastic waste and EAFS into rigid pavement construction emerges as a promising solution to reduce waste accumulation in the vicinity. By incorporating these materials into pavement construction, not only is waste effectively managed, but also environmentally friendly and efficient practices are promoted. The inclusion of plastic waste and EAFS in concrete offers numerous benefits, making it a sustainable and viable choice for infrastructure development.
Key Words: Waste Material, Pavement, Rigid Pavement, Improvement, strengthening of the pavement.
Blast Furnace (BF) slag and Steel-Making (SM) slag are the two main types of slags produced in the steel industry. Electric Arc Furnace Slag (EAFS) is a type of Steel-Making slag that is extracted through the refinement of discarded steel scrap in an electric arc furnace. EAFS is characterized by its high concentration of free calcium and iron oxides. This slag is obtained during the steelmaking process, which involves melting liquid steel and then undergoing acid refining. The material has a rocky texture and can be easily crushed, making it suitable for use as concrete aggregate. Utilizing EAFS not only provides a partial solution to environmental challenges but also helps improve the microstructure of concrete. This improvement is often difficult to achieve with just pure Portland cement. The use of EAFS that has passed through a 90-micron sieve is visually demonstrated in the project's representation. By incorporating EAFS into concrete production, the project aims to showcase the benefits of using this slag as a sustainable alternative in construction materials.
2.SLAG
1.INTRODUCTION Employing cutting-edge technologies in the production of eco-friendly construction materials, such as self-compacting concrete derived from a variety of industrial byproducts, represents a proactive approach to environmental conservation while ensuring the fabrication of long-lasting construction materials. Concrete, a predominant building material, consists mainly of sand, aggregates, and cement. By substituting cement with pozzolanic materials like fly ash, silica fume, rice husk ash, metakaolin, and Electric Arc Furnace Slag (EAFS), and utilizing crushed granulated blast furnace slag to reduce production costs, the structural integrity and strength of concrete are maintained. However, the extensive extraction of concrete ingredients from the Earth's crust each year leads to environmental strain
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