Naslov
Implication of waste management strategy on the environmental performance of reinforced concrete product

Autori
Carević, Ivana ; Naletilić, Helena ; Banjad Pečur, Ivana ; Štirmer, Nina

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
CMSS23: 4rd International Congress on Materials & Structural Stability: Abstract and Proceedings / - , 2023, 256-257

Skup
CMSS23: 4rd International Congress on Materials & Structural Stability

Mjesto i datum
Rabat, Maroko, 08.03.2023. - 10.03.2023

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
waste management, environmental performance, reinforced concrete

Sažetak
Concrete is an indispensable construction material with a very high annual worldwide consumption. As an environmentally intensive material, it is responsible for about 8% of global carbon emissions (Miller et al, 2020). On-site construction is another source of pollution, to which fuel consumption for transporting heavy equipment and materials is a major contributor. In order to turn transition to sustainable construction and reduce the increasing negative impact on the environment, it is necessary to develop new tools that will enable the transition to a sustainable and circular economy. One such tool that measures the environmental impact of an individual product from its production to its final end of life, is life cycle assessment (LCA). Such a method is used to analyze the environmental impact of construction products and related activities. The results of the LCA could be published in the form of a document with the main features of the product and information about the manufacturer in the form of Environmental Product Declaration (EPD). By publishing data on the environmental impacts of construction products in EPDs, manufacturers are encouraged to design products and processes with lower environmental impacts. The case study presented here is an example of LCA of reinforced concrete floor slab. The objective of LCA is to investigate the environmental impact of reinforced concrete floor slab. The LCA was made in accordance with EN ISO 14040:2008 and EN ISO 14044:2008/A2:2020 standards. In this study, the product phase (raw material supply, transport of raw materials and production of concrete and reinforcement), the construction process phase (transport of concrete and reinforcement to the construction site and placement of concrete and reinforcement) and the end-of-life phase (demolition and landfilling/recycling) were included in the system boundary. The problem-oriented (midpoints) methodology is chosen for the impact assessment. Impacts are evaluated using the CML method. Special focus is given to how credits from the recycling process of reinforced concrete floor slab are accounted for in LCA. The decision on recycling/reuse or landfilling and LCA modelling of the last phase of the life cycle of buildings and products (end of life) can influence the results of LCA and consequently the EPD. It is recommended that life cycle thinking be incorporated at the design and planning stages, to improve recycling potential and circular economy measures for construction and demolition waste management.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti, Interdisciplinarne tehničke znanosti

POVEZANOST RADA