Method for manufacturing eco-friendly and sustainable concrete products using construction and demolition waste for use in construction industry, involves sorting collected waste to extract usable aggregates and crushing sorted waste into aggregates of uniform size and screening to remove impurities
	MADHURAGHAVAN V; PRASATH H M; KIRUBHANITHI T; KANNAN D M; DHARSHINI M M R; KUMAR S S S R; KARUPPASAMY N; HARSHINI E K; MALATHY R
	2023-12-19
专利权人	SONA COLLEGE TECHNOLOGY (SONA-Non-standard)
申请日期	2023-12-19
专利号	IN202341086658-A
成果简介	NOVELTY - Manufacturing eco-friendly and sustainable concrete products using construction and demolition (C&D) waste, involves (i) collecting discarded cement bags and C&D waste, that has concrete rubble, bricks, and debris from demolition sites and recycling centers; (ii) sorting the collected waste to extract usable aggregates; (iii) crushing the sorted waste into aggregates of uniform size and screening to remove impurities and oversized fragments; (iv) melting the collected cement bags to obtain a molten cement binder; (v) mixing the molten cement binder with the screened aggregates in a weight ratio of 3:1:3 (molten cement bags: crushed fine aggregates: crushed coarse aggregates)to form a homogenous mixture; (vi) molding the homogenous mixture into desired shapes for concrete products; and (v) cooling and solidifying the molded products, enabling the molten cement binder to harden and bond with the aggregates to form a durable concrete product. USE - Method for manufacturing eco-friendly and sustainable concrete products using construction and demolition waste for use in construction industry. ADVANTAGE - The products are suitable for use in landscaping, pavements, urban infrastructure, and construction projects. The method provides a sustainable alternative to conventional cement-based materials, reducing environmental impact and promoting the reuse of construction waste. The method also provides significant cost savings, reduces the need for natural resources, such as sand and gravel, which are becoming increasingly scarce, by incorporating C&D waste into the production process, the method supports the circular economy and promotes the efficient use of resources in the construction industry. The method is highly sustainable, cost-effective, and environmentally friendly method for manufacturing paver blocks and bricks. The use of molten cement bags and C&D waste as primary raw materials significantly reduces the environmental impact of construction, while producing durable and high-strength products suitable for various outdoor applications. The method represents a significant advancement in sustainable construction practices and provides a practical solution to the growing challenges of waste management, resource conservation, and environmental degradation. DETAILED DESCRIPTION - Manufacturing eco-friendly and sustainable concrete products using construction and demolition (C&D) waste, involves (i) collecting discarded cement bags and C&D waste, that has concrete rubble, bricks, and debris from demolition sites and recycling centers; (ii) sorting the collected waste to extract usable aggregates; (iii) crushing the sorted waste into aggregates of uniform size and screening to remove impurities and oversized fragments; (iv) melting the collected cement bags to obtain a molten cement binder; (v) mixing the molten cement binder with the screened aggregates in a weight ratio of 3:1:3 (molten cement bags: crushed fine aggregates: crushed coarse aggregates)to form a homogenous mixture; (vi) molding the homogenous mixture into desired shapes for concrete products; and (v) cooling and solidifying the molded products, enabling the molten cement binder to harden and bond with the aggregates to form a durable concrete product, characterized in that the molten cement bags act as the binding agent, eliminating the use of conventional cement and water in the manufacturing process, where the durable concrete product exhibits 7.5% higher compressive strength, 81.25% higher flexural strength, and 50% lower water absorption properties.
IPC 分类号	E01C-019/48 ; E02F-003/96 ; E04G-023/08 ; H01L-021/28 ; H04W-088/04
国家	印度
专业领域	材料科学
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/18857
专题	中国科学院新疆生态与地理研究所
作者单位	SONA COLLEGE TECHNOLOGY (SONA-Non-standard)
推荐引用方式 GB/T 7714	MADHURAGHAVAN V,PRASATH H M,KIRUBHANITHI T,et al. Method for manufacturing eco-friendly and sustainable concrete products using construction and demolition waste for use in construction industry, involves sorting collected waste to extract usable aggregates and crushing sorted waste into aggregates of uniform size and screening to remove impurities. IN202341086658-A[P]. 2023.

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