The recycling processes for concrete production have three major advantages such as: ... Numerous researches have indicated that the environmental impact of concrete could be minimized using alternative cementitious materials such as fly ash or recycled aggregates (Kurda et al., 2020). Thus, the environmental impact …
Independent, detailed, and transparent life-cycle inventories are developed for U.S. average concrete. • Estimated CO 2 emissions are higher than those reported to the U.S. EPA's Greenhouse Gas Reporting Program.. The inventories update previous results and can support LCA of concrete products and benchmarking for process …
Overview of concrete and cement production environmental impacts. A quarter of global greenhouse gas (GHG) emissions are associated with materials production (Pauliuk et al., 2021). Both industry-driven and demand-driven resource efficiency and circular economy initiatives have the potential to deliver emissions reductions through …
Recycling concrete is a great way to reduce the environmental impact of concrete production. Every ton of recycled concrete can replace up to 1.5 tons of new aggregate, thus reducing the number of natural resources that need to be extracted and processed.
Since the cement is the most contributing factor for environmental impact in OPC concrete, alternate and more sustainable concrete is widely explored in literature. Many studies have been performed to analyze the ecological potential of ecological concrete and traditional concrete. 4.1.1.1. Environmental impact of geopolymer …
This paper reviews the development history of recycling technologies in Japan from the viewpoint of the properties of recycled aggregate and recycled aggregate concrete as well as the environmental impact such as CO 2 emissions and waste generation in recycling. The paper also presents the outline of completely recyclable …
Analysis (BEA) Input-Output (IO) data to estimate the total economic impacts of recycling for 2012. 1, which includes both direct and indirect impacts of recycling, described as follows: 1 2012 is the data year for the most recent BEA IO accounts, which is why the 2020 WIO report estimates the recycling impacts for this year. • Direct impacts
The process of concrete recycling addresses this by reducing the extraction of natural resources, lowering greenhouse gas emissions associated with …
It assesses the environmental impacts of construction materials across their lifespan, employing Life Cycle Assessment (LCA) [1,2] and Material Flow Analysis (MFA) to quantify the ecological impact …
Concrete is one of the most common construction materials, while construction industry is responsible for large quantities of natural resources consumption and solid waste generation [1, 2].Thus, strategies to reduce environmental impacts of concrete are of great importance on a global scale [3,4,5].On the other hand, plastic …
This paper presents a critical review of reducing the life-cycle environmental impact of 3D concrete (3DPC) systems from the perspectives of material preparation, construction process and structure level. ... (RCA), which are obtained by crushing the demolished concrete waste. Because of the complexity of the recycling …
environmental impacts. Moreover, studies show that recycling NO 2 sequestered waste concrete back into the new concrete mixture improves the structural properties of new …
Recycling concrete and similar materials saves money—especially when done on site with portable crushers. ... The main goals include reducing environmental impacts and offering economic opportunities. Solid-state recycling process becomes an effective and powerful methodology to realize the green state forming from recyclable …
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
Research by (Zadeh et al., 2023) suggests that recycled concrete can be used for reinforcing concrete structures, promoting 1 sustainability, and addressing environmental...
Without valorisation alternatives, the whole environmental impact of waste concrete processing is assigned to CRCA as the main recycling process product. By adding value to the fine fractions, the environmental impact of the CRCA would be indirectly decreased.
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 …
How recycling concrete could accelerate sustainable construction. In the built environment to date, it has been cheaper and easier to knock things down and start again, despite the cost in CO 2 emissions. We explore …
This study was conducted to maximize the good impacts that recycling has on the environment within the construction industry. Many fundamental criteria were utilized while selecting the materials employed to do this. ... The contribution of concrete recycling. Sustainability 2021, 13, 2139. [Google Scholar] Figure 1.
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 …
Commencing with an explanation of the conceptual distinctions between one-time and multiple-times recycling of concrete, this study reviews the effects of …
The process of concrete recycling addresses this by reducing the extraction of natural resources, lowering greenhouse gas emissions associated with both concrete production and waste disposal, and mitigating the impact of construction activities on the environment.
The Environmental Impact of Recycled Concrete Vefago, L.H.M. School of Architecture, Polytechnic University of Catalonia, Spain (email: luizvefago@gmail) ... Keywords: sustainability, concrete, recycling, waste 181. 1. Introduction Concrete is a compound material many used in buildings, mainly in multi-storey buildings. Cement is
As construction activities become more intensive in developing countries, increasing improperly managed construction and demolition waste (CDW) brings serious environmental impacts. Recycling is a beneficial way to dispose of CDW that reduces environmental impact and brings economic benefits, especially for concrete. China is …
Using GFRP waste in concrete reduces environmental impact of the concrete manufacturing process. For instance, fine aggregates are extracted from riverbeds, which is a non-sustainable approach [47], [52]. Therefore, incorporating GFRP recyclates into concrete has the potential to improve sustainability.
Therefore, life cycle assessment (LCA) has been widely employed to evaluate the environmental impacts of waste management (Laurent et al., 2014). We reviewed those studies related to LCA of waste management, then selected and summarized some typical LCA studies related to concrete recycling, as shown in the supporting …
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 …
As a result, numerous researchers and construction agencies have focused on minimizing the construction industry's environmental impact, energy consumption, and increased CO 2 intensity, thereby promoting sustainable development. As a result, one of the most resourceful and promising paths to sustainable development is the practice of …
Natural disasters and human demolition create vast amounts of construction and demolition waste (CDW), with a substantial portion being concrete waste. Managing this concrete waste is a daunting challenge for developing countries with limited resources, aiming to mitigate its harmful environmental effects. Therefore, the proposed approach …
Environmental impacts of cement and concrete . ... is an attempt to lessen the pace and impact of consumption through efforts to reduce demand for raw materials by recycling wastes, improve the ...
Studies exploring a wider range of environmental impacts associated with concrete production have highlighted significant releases of particulate matter (PM) (Schuhmacher et al., 2004; Van den Heede and De Belie, 2012) as well as metals, dioxins, and furans resulting from fuel combustion (Gursel et al., 2014; Marceau et al., 2006; …
This study has been conduct to understand environmental impact of recycling Sewage sludge into cementitious matrix. This study first identified the issue related to the sewage sludge before concentrating on the properties of sewage sludge that have been established by many researchers. ... Identify the environmental performance …
This leads to lower environmental impacts versus conventional practices. Concrete waste recycling in mobile plants also showed superiority over stational facilities in reducing environmental impacts in terms of lower energy consumption, water consumption, and product climate footprint (Li et al., 2020; Mostert et al., 2021). The …
As cement is the driving factor in environmental impacts in concrete production, a constant cement content in RAC concrete sets focus on the positive effects of concrete recycling. After cement, it is the transport, which contributes largest to the total GWP; however, with RCA replacements the contribution of aggregate reduces by half.
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 .
The comparative environmental impact assessment of two use cycles of two cubic meters (two structural elements) of concrete was performed for raw material extraction, recycling, and material production stages of the concrete life cycle (including transport), where the first life cycle was considered in terms of only primary resources …
This paper presents the results of a research study on the environmental impact produced by the recycling of concrete originating from construction and demolition waste (C&DW). The aim of the study was to implement a life cycle inventory (LCI) of the concrete recycling phases.
Highlights. •. Lack of valuable applications of the fine fractions restrain full concrete recycling. •. Processing to improve quality of coarse fraction must address …
Recycled aggregates; Recycled aggregates are an essential component of green concrete, as they help to reduce the environmental impact of concrete production by utilizing waste materials and reducing the demand for natural resources (Levy and Helene, 2004; Chen et al., 2003; Hansen, 1986; Evangelista and De Brito, 2014; Wang …
The recycling and reuse of concrete waste play a vital role in promoting sustainable construction practices and reducing the environmental impact of concrete …
