Work

Life cycle assessment of belitic clinkers with ornamental rocks processing sludge and calcium carbonate sludge

Year: 2025

Type: article

Abstract: This article aims to evaluate the potential environmental impacts of using mud from processing ornamental rocks and calcium carbonate sludge in producing belitic clinkers on a laboratory scale. The functional unit considered was 396 grams of wet pellet produced in cycle 1 of each formulation. Potential environmental impacts were assessed with a midpoint scope, attributional approach, for the categories covered by the EF 3.0 method. The SimaPro Expert 9.1.1.1 software was used for modelling, with the Ecoinvent 3.6 database. Belitic clinkers with residues showed environmental gains in the climate change impact and resource use categories compared to the reference clinker. The main contributors to environmental impacts are transportation and the electrical energy consumed by the muffle furnace in the clinkerization stage. Thus, it was possible to conclude the technical and environmental feasibility of producing more sustainable binders using entirely industrial solid waste.

Source: Ambiente Construído

DOI: 10.1590/s1678-862120250001008645

Authors: Francisco Roger Carneiro Ribeiro, Marilise Garbin, Maikon Moreira de Pires, Carlos Alberto Mendes Moraes, Feliciane Andrade Brehm, Regina Celia Espinosa Modolo

Institutions: Universidade Federal do Rio Grande do Sul, Universidade do Vale do Rio dos Sinos

Language: English

Topic: Concrete and Cement Materials Research

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Responsible consumption and production, Climate action, Industry, innovation and infrastructure

Open Access status: diamond

Funder: Conselho Nacional de Desenvolvimento Científico e Tecnológico