Comparative LCA of concrete with recycled aggregates: a ...

Life cycle assessment (LCA) methodology is applied using Simapro© software. A cradle to grave analysis is carried out. The results are analysed based on the database Ecoinvent 3.3 and Impact 2002+. Results show that the concrete with 25% recycled aggregates is the best solution from an environmental point of view.

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Life Cycle Assessment of Completely Recyclable Concrete

Mineral demolition waste can be recycled as crushed aggregates for concrete, but these reduce the compressive strength and affect the workability due to higher values of water absorption. To advance the use of concrete rubble, Completely Recyclable Concrete (CRC) is designed for reincarnation within the cement production, following the Cradle-to-Cradle (C2C) principle.

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A review of life cycle assessment of recycled aggregate concrete

Jun 10, 2019 · Recycled aggregate has emerged expecting to address raw materials shortage in construction sector by converting waste concrete into resource. Many researchers adopted life cycle assessment (LCA) to evaluate and compare environmental impact of recycled aggregate concrete (RAC) and natural aggregate concrete (NAC).

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LCA of concrete with construction and demolition waste ...

Jan 01, 2020 · This study deals with the life-cycle assessment (LCA) of concrete production process. Concrete mixtures prepared with construction and demolition waste (CDW) at different percentages (10%, 40%, 80%, and 100%) are investigated to compare the environmental and energy impacts related to their production with mixtures made of natural aggregates.

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Environmental life cycle assessment of coarse natural and ...

Purpose: To present a comparative life cycle assessment (LCA) of natural and recycled coarse aggregates used in concrete production. Methods: LCA was used to compare the environmental impacts of three alternative of procurement of coarse aggregates for concrete production: extraction and processing of natural aggregates; recycling of demolished concrete either using a fixed or a mobile plant. Site-specific data supplied by companies were used to model the life cycle of these aggregates.

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(PDF) Comparative LCA of recycled and conventional concrete ...

Oct 13, 2020 · Lean concrete (LC) Conventional concrete (CC) 1,890 100 150 LC CC CEM150 200 LC CC CEM200 Recycled concrete (RC) Mixed rubble (M) (100 %) 1,221 100 150 LC RC CEM150

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Analysis of Life Cycle Environmental Impact of Recycled Aggregate

concrete made of waste materials by using LCA. Environmental performances of natural formulation with the same mechanical strength regarding the functional unit, were evaluated.

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lca for recycling concrete - ESG Properties

Integrated life cycle assessment and life cycle costing of concrete recycling in the Netherlands. Integrating life cycle assessment (LCA) with life cycle costing (LCC) offers the opportunity to simultaneously analyze the environmental and economic aspects of product alternatives, for the integration of which a unified computational has been proposed by Heijungs et al. (2013) [1].

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Life Cycle Assessment of Aggregates

The objective of the work reported here was to develop a Life Cycle Inventory (LCI) and Assessment (LCA) Model for the aggregates industries. The work includes the extraction and processing of primary resources through to the point of their dispatch as aggregates (including overburden stripping, drilling and blasting, and restoration), and comparing with the processing of equivalent recycled aggregates for three grades (aggregates for unbound applications; aggregates for concrete; aggregates ...

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Life cycle analysis of recycled concrete | Concrete Recycling ...

The aim of this study is to confirm the eco-respectability of recycled aggregates concrete (RAC). Comparisons are performed according to the normative criteria of Life Cycle Assessment (LCA) methodology applied to construction materials (EN 15804 standard).

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Comparative LCA of recycled and conventional concrete for ...

Jan 23, 2013 · Construction and demolition (C&D) waste recycling has been considered to be a valuable option not only for minimising C&D waste streams to landfills but also for mitigating primary mineral resource depletion. However, the potentially higher cement demand due to the larger surface of the coarse recycled aggregates challenges the environmental benefits of recycling concrete. Furthermore ...

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Comparative LCA of concrete with natural and recycled coarse ...

Jul 13, 2017 · The purpose of the present study is to compare the environmental impacts of using coarse natural aggregate (NA) and coarse recycled concrete aggregate (RCA) to produce concrete in the New York City area, by means of a unique LCA framework that incorporates comprehensive regional data. A comparative environmental impact assessment study was performed on the critical processes of the life ...

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Buildings Life Cycle Assessment (LCA) | Concrete ...

Life cycle assessment (LCA) seeks to quantify the environmental impacts over the infrastructure life cycle by identifying the costs during each phase. LCA can be used to obtain credits in certification systems like LEED, but traditional LCA methods can be time, resource, and data intensive.

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LCA of cement - Appropedia: The sustainability wiki

Dec 07, 2016 · Opportunities for Future Life Cycle Assessment [edit | edit source]. These cradle to gate life cycle assessments may be useful in additional studies. These results could be used in cradle to grave assessments of specific end uses of cement, e.g., an LCA of concrete pavements.

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(PDF) Concrete Waste Management Decision Analysis Based On ...

Recycling of concrete waste for road base material emits 0.095 t CO 2 and followed by landfilling at 0.139 t CO 2. ... Life cycle assessment of C&DW shows that transportation stage plays a ...

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Mixed-unit hybrid life cycle assessment applied to the ...

Jun 15, 2018 · The construction industry contributes around 18% of greenhouse gas emissions, 40% of depletion of natural resources, and 25% of wastes globally. To reduce these impacts, construction industries can adopt low-carbon alternatives for construction materials and waste minimisation strategies, including the recycling of construction and demolition waste. However, a comprehensive understanding of ...

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Life cycle assessment of concrete structures with reuse and ...

This study proposes a novel framework to guide the life cycle assessment (LCA) of concrete structures with reuse and recycling strategies. The material flow in recycling strategies is clarified ...

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Life cycle assessment of seismic retrofit alternatives for ...

performed a life cycle assessment (LCA) analysis of three seismic retrofit alternatives for reinforced concrete structures, namely, RC column jacketing, beam weakening, and shear walls. An 8-story reinforced concrete case- study building available in the literature was adopted for the LCA analysis.

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EoL (End of Life) and Recycling in LCA - Eco Cost Value

The modelling of downcycling in LCA needs therefor some extra explanation, especially since most of the recycling in practice is still downcycling, e.g. the recycling of paper, crushed concrete aggregate, and the mechanical recycling of plastics (= shredding and re-melting).

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An approach to LCSA: the case of concrete recycling ...

Jun 05, 2013 · The framework of life cycle sustainability analysis (LCSA) has been developed within the CALCAS project but the procedure on how an LCSA should be carried out is still far from standardized. The purpose of this article is to propose an approach to put the LCSA framework into practice. This approach is illustrated with an on-going case study on concrete recycling. In the context of an EC-FP7 ...

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Sustainability | Free Full-Text | Life Cycle Assessment and ...

The current waste management literature lacks a comprehensive LCA of the recycling of construction materials that considers both process and supply chain-related impacts as a whole. Furthermore, an optimization-based decision support framework has not been also addressed in any work, which provides a quantifiable understanding about the potential savings and implications associated with ...

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RC-1550 Sustainable Recycled Materials for Concrete Pavements

Sustainability, concrete recycling, life-cycle assessment 191. March 2011 Sustainable Recycled Materials for Concrete Pavements – Final Report

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Recycling of concrete by heat treatment

recycling process the entire concrete, including the stone material, is heated. In the LCA model, you can choose between biofuel or oil for the heating furnace.

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Analysis of Environmental Impact for Concrete Using LCA by ...

(1) By using the concrete life cycle assessment (LCA) technique suitable for the Korean situation, the effects of increase in strength, admixture material mixing, recycled aggregate mixing, and the amount of binder on environmental impact (global warming, acidification, eutrophication, ozone depletion, photochemical ozone creation, and abiotic ...

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Inclusion of carbonation during the life cycle of built and ...

the demolition, recycling, and re-use of concrete in a construction application. A case study provides an LCA of a built concrete bridge. 2 Materials and methods 2.1 Research structure The research followed these main steps: 1. Estimation was made of CO 2-e emissions (i.e., CO 2 equivalent emissions) arising due to manufacture of raw

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