The cost–benefit analysis approach is utilized to assess 15 recycled concrete aggregate combinations with varying replacement ratios and additives. ... Conversely, the review of the literature showed a significant lack of research addressing the environmental impact of the recycling process, particularly from the lifecycle …
The environmental impact of concrete, its manufacture and applications, is complex. Some effects are harmful; others welcome. Many depend on circumstances. A major component of concrete is cement, which has its own environmental and social impacts and contributes largely to those of concrete. In spite of the harm that badly planned use …
Concrete; Wood (from buildings) Asphalt (from roads and roofing shingles) ... Offset the environmental impact associated with the extraction and consumption of resources and production of new materials. ... While reuse and recycling are important methods to sustainably manage waste once waste has already been …
Furthermore, early studies on the environmental impact of recycled concrete seemed to confirm an identical environmental impact for recycled and ordinary concrete (Viviani 2011; Viviani 2014).
The potential environmental impact is also clear. The move to a circular economy — a system that aims to reduce, reuse and recycle materials — could address 70% of global greenhouse emissions 1 .
These impacts are then allocated on a mass basis for the contribution of 35% sand and 49% gravel to ready-mix concrete production, with the remaining contributions of 9% cement and 7% water to represent a general-use concrete (Marceau et al., 2007). GREET enables the user to alter the material shares in the concrete if a …
Owing to their large-scale use, production of cement and concrete results in substantial emission of greenhouse gases and places strain on the availability of natural …
Conclusion. Concrete recycling is a valuable strategy for reducing waste and minimizing the environmental impact of construction activities. By repurposing …
The absence of fines decreases cement consumption and thus reduces the environmental impacts of the concrete. MS was brought from a stone crusher 25 km from the institute lab. ... Progress in recycling in the built environment. Springer (978–94–007–4904–8; 2013) Rosado LP, Vitale P, Penteado CSG, Arena U (2017) Life …
These approaches, combined with improved waste management practices and recycling efforts, hold the potential to mitigate the environmental impact of cement and contribute to a more sustainable construction industry. Balancing Act: Economic Growth vs. Environmental Responsibility:
The manufacturing of concrete, however, also makes it one of the most detrimental materials for 2 the environment [6]. A typical concrete mixture consists of 12% Portland cement, 34% sand, 28% ...
Concrete is the most-used construction material worldwide. Previous studies on the environmental impacts of concrete production have mainly focused on the materials involved and energy consumption ...
National Concrete Pavement Technology Center 2711 South Loop Drive, Suite 4700 Ames, IA 50010-8664 Director Peter Taylor 515-294-3230 [email protected] Managing Editor Marcia Brink 515-294-9480 [email protected]. QUANTIFYING THE SUSTAINABILITY BENEFITS OF CONCRETE PAVEMENT …
Environmental impacts of three strategies for recycling waste concrete are compared. Artificial neural network is used to determine the mix proportions of new concrete. Simultaneously using demolished concrete lumps and recycled aggregates is …
DOI: 10.1016/j.jclepro.2021.129463 Corpus ID: 240335107; Environmental impacts of three waste concrete recycling strategies for prefabricated components through comparative life cycle assessment
Some of the major environmental impacts for which the construction industry is responsible are mineral resource depletion, greenhouse gas emissions, and waste generation. Among the different strategies that exist to decrease such impacts, recycling demolition waste into recycled concrete aggregates has been considered a promising …
Recovering concrete has two main advantages: (1) it reduces the use of aggregate and its associated environmental costs of exploitation and transportation; and (2) it …
EPA's SMM program provides data, information, guidelines, tools and technical assistance on resource conservation, recycling, resource recovery, waste reduction and landfilling issues. In summary, the 2020 REI Report found: 526 MMT of recycled goods produced; 681,000 jobs, $37.8 billion in wages, and $5.5 billion in tax revenue generated; and.
Recycling concrete waste helps reduce the negative environmental impacts of construction activities. Worldwide, concrete recycling rates and available applications of recycled concrete vary …
Keywords: sustainability, concrete, recycling, waste 181. 1. Introduction Concrete is a compound material many used in buildings, mainly in multi-storey buildings. Cement is ... aggregates in concrete in the way to diminishing the environmental impact caused by natural aggregate extraction, due to the enormous quantity of natural aggregate used ...
The aim of this paper is to analyze the environmental impact and the economic aspects of the use of concrete with recycled aggregates for composite steel-concrete slabs with variable spans from 2. ...
The environmental impacts are reduced by 58% for the concrete mixture with 47% aggregate. Conducted LCA for recycled plastic aggregate for concrete application. Carbon emission and energy consumption were reduced by 15.4% and 16.1%, respectively, for 15% recycled content in concrete.
Throughout the recycling process, attention is paid to minimizing environmental impact, ensuring the efficient use of resources, and producing high-quality recycled concrete products. This technical process not only supports sustainable construction practices but also plays a crucial role in the circular economy by turning …
The environmental impact of waste glass (WG) is one of the major challenges crippling sustainable waste management and mitigation. Reclamation of recycled materials from waste glass remains a ...
The processes of recycling concrete. A paddle crusher converts deteriorated barriers into one-inch bits. A paddle wheel inside spins and crushes the concrete, and afterward, the pieces are moved to a vibrating sorting box. These pieces of a once massive concrete slab are then recycled in roadwork, erosion, and dust control …
Then, using recycling plastic waste in concrete may lead to sustainable development and economic efficiency in construction industries (Awad et al., 2020). ... Plastic wastes have a global impact on the environment due to pollution. The spread of this waste in streets, parks, and rivers distorts the as major cause of increasing water …
Environmental impact assessment of recycled aggregate concrete made with pozzolans. Due to insufficient materials, the environmental analysis of concrete …
Environmental benefits: Recycling of concrete reduces the amount of waste that goes to landfills, which helps to conserve landfill space and reduce the environmental impact of waste disposal. Recycling also reduces the need for new construction materials, which helps conserve natural resources and reduce the carbon footprint of the construction ...
The recycling system has more environmental impacts than the landfilling system if the quantity of recycled CDW is limited by the recycled concrete aggregate demand for road construction, indicating that CDWM systems that integrate waste recycling and reuse will only be beneficial to the environment if majority, if not all, of the …
Recycled concrete means that you crush or pulverize the demolished concrete structure or structural elements and reuse the crushed concrete for future concrete construction works. Now, this process requires a serious of procedural steps and cannot be casually taken for granted. The aim of recycling concrete is not just to reduce …