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Eco-friendly ceramic bricks: a comparative study of life cycle impact methods

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Abstract

The growing need for natural resources for the production of inputs for construction, such as ceramic bricks, as well as the high rates of solid waste generation in the sector, makes construction an industrial segment with unfavorable environmental effects. The Life Cycle Assessment (LCA) emerges as a tool capable of assisting in the quantification and analysis of the impacts associated with construction materials, whether traditional or alternative. Thus, the goal of this paper is to assess the environmental impacts associated with the development of alternative building materials. To compare the conventional and the alternative bricks, both were evaluated according to the LCIA methods Ecoindicator 99, IMPACT 2002+, and ReCiPe 2016, in the midpoint and endpoint levels. The sensitivity analysis was carried out considering as an alternative input for the firing process, a mixture composed of wood and biomass originating from the Pennisetum purpureum. According to Ecoindicator 99 method, the categories respiratory organics, fossil fuels, and radiation stand out, which showed greater sensitivity in altering the input used in the firing process, reducing their impacts by 38.38%, 34.68%, and 31.81%, respectively, when comparing product III (ceramic brick incorporated with OSPW and submitted to the firing process with the mix of wood and Pennisetum purpureum) and product I (ceramic brick incorporated with OSPW and submitted to the traditional firing process). In addition, in the respiratory organics category, the IMPACT 2002+ method showed a reduction of approximately 43% of the impacts associated with product III, when compared to the product with the greatest impact in this category. In a global analysis of the results presented by the ReCiPe 2016 method, the product III had the lowest associated environmental impact when compared to the other evaluated systems.

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Data availability

The data that support the findings of this study are available on request from the corresponding author Josinaldo Dias. The data are not publicly available due to containing information that could compromise research participant privacy/consent.

Abbreviations

LCA:

Life cycle assessment

LCIA:

Life Cycle Impact Assessment

LCI:

Life cycle inventory

OSPW:

Ornamental stone processing waste

C:

Carcinogens

RO:

Respiratory organics

RI:

Respiratory inorganics

CG:

Climate change

R:

Radiation

OL:

Ozone layer

E:

Ecotoxicity

A/E:

Acidification/eutrophication

LU:

Land use

M:

Minerals

FF:

Fossil fuels

NC:

Noncarcinogens

IR:

Ionizing radiation

OLD:

Ozone layer depletion

AEC:

Aquatic ecotoxicity

TE:

Terrestrial ecotoxicity

TA:

Terrestrial acid/nutria

LO:

Land occupation

AC:

Aquatic acidification

AE:

Aquatic eutrophication

GW:

Global warming

NR:

Nonrenewable energy

ME:

Mineral extraction

SOD:

Stratospheric ozone depletion

OFHH:

Ozone formation, human health

FPMF:

Fine particulate matter formation

OFTE:

Ozone formation, terrestrial ecosystems

TA:

Terrestrial acidification

FE:

Freshwater eutrophication

ME:

Marine eutrophication

TE:

Terrestrial ecotoxicity

FEC:

Freshwater ecotoxicity

MEC:

Marine ecotoxicity

HCT:

Human carcinogenic toxicity

HNCT:

Human noncarcinogenic toxicity

MRS:

Mineral resource scarcity

FRS:

Fossil resource scarcity

WC:

Water consumption

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Acknowledgements

Financial support for this work was provided by the State University of the northern Rio de Janeiro (UENF). The authors are grateful for the assistance provided by the staff of the Laboratory of Advanced Materials (LAMAV) and the Civil Engineering Laboratory (LECIV) of the UENF. The complementary data on the technological and environmental performance of eco-friendly bricks is available from Xavier et al. (2019) and Dias et al. (2021), respectively.

Dias et al. (2021) presents preliminary data on the life cycle assessment of eco-friendly and conventional bricks. This contributed to the development of the present study, enabling comparative evaluation according to the LCIA methods (ReCiPe 2016, Ecoindicator 99 and Impact 2002+) at the midpoint and endpoint of the levels. In addition, it was possible to analyze the sensitivity of the system considered to assess the life cycle of conventional and eco-friendly bricks, evaluating the performance of the firing process of the respective bricks, using a mixture of wood and Pennisetum purpureum as input for firing.

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Contributions

Conceptualization, JD; methodology, JD and GX; validation, JD and GX; investigation, JD, JA, and GX; writing—original draft preparation, JD and AA; writing—review and editing, JD, AA, and HC; supervision, CMV.

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Correspondence to Josinaldo Dias.

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The authors declare no competing interests.

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Dias, J., Xavier, G., Azevedo, A. et al. Eco-friendly ceramic bricks: a comparative study of life cycle impact methods. Environ Sci Pollut Res 29, 76202–76215 (2022). https://doi.org/10.1007/s11356-022-21292-w

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  • DOI: https://doi.org/10.1007/s11356-022-21292-w

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