Life cycle assessment of the production of cement: A Brazilian case study

Stafford, Fernanda do Nascimento; Raupp-Pereira, F.; Labrincha, J.A.; Hotza, Dachamir

doi:10.1016/j.jclepro.2016.07.050

Cited by 105 publications

(36 citation statements)

References 22 publications

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“…Life cycle assessment of cement includes but not limited to: raw materials acquisition, manufacture, construction and residual materials [121]. It then estimates the relative impacts they have on greenhouse gas emissions, ozone depletion, photo-oxidants formation and terrestrial acidification [122]. There are a number of studies conducted on life cycle assessment of clinker production [122][123][124][125].…”

Section: Life Cycle Assessmentmentioning

confidence: 99%

“…It then estimates the relative impacts they have on greenhouse gas emissions, ozone depletion, photo-oxidants formation and terrestrial acidification [122]. There are a number of studies conducted on life cycle assessment of clinker production [122][123][124][125]. However, very limited LCA studies are available for alternative cements.…”

Section: Life Cycle Assessmentmentioning

confidence: 99%

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Recent Progress in Green Cement Technology Utilizing Low-Carbon Emission Fuels and Raw Materials: A Review

2019

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The cement industry is facing numerous challenges in the 21st century due to depleting natural fuel resources, shortage of raw materials, exponentially increasing cement demand and climate linked environmental concerns. Every tonne of ordinary Portland cement (OPC) produced releases an equivalent amount of carbon dioxide to the atmosphere. In this regard, cement manufactured from locally available minerals and industrial wastes that can be blended with OPC as substitute, or full replacement with novel clinkers to reduce the energy requirements is strongly desirable. Reduction in energy consumption and carbon emissions during cement manufacturing can be achieved by introducing alternative cements. The potential of alternative cements as a replacement of conventional OPC can only be fully realized through detailed investigation of binder properties with modern technologies. Seven prominent alternative cement types are considered in this study and their current position compared to OPC has been discussed. The study provides a comprehensive analysis of options for future cements, and an up-to-date summary of the different alternative fuels and binders that can be used in cement production to mitigate carbon dioxide emissions. In addition, the practicalities and benefits of producing the low-cost materials to meet the increasing cement demand are discussed.

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Section: Life Cycle Assessmentmentioning

confidence: 99%

Section: Life Cycle Assessmentmentioning

confidence: 99%

Recent Progress in Green Cement Technology Utilizing Low-Carbon Emission Fuels and Raw Materials: A Review

2019

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“…The production of Portland cement is highly demanding in energy and natural resources, such as clay and limestone, in addition to emitting large volumes of CO 2 to the environment. The production of 1 ton of Portland cement emits 0.94 ton of CO 2 and consumes more than 1.5 ton of raw materials and 2.93-6.28 GJ of thermal energy, in addition to 65 to 141 kWh of electric power [1,2]. The use of sustainable materials with pozzolanic activity may considerably reduce the energetic and environmental impact of the production of cementitious materials.…”

Section: Introductionmentioning

confidence: 99%

“…The use of sustainable materials with pozzolanic activity may considerably reduce the energetic and environmental impact of the production of cementitious materials. In addition, the use of pozzolans can also improve the fresh and hardened properties of mortars, in addition to controlling the heat of hydration and reducing creep and shrinkage of mortars and concrete [2][3][4][5][6][7]. Wastes from the red ceramic industry currently account for up to 7% of the global production of ceramic materials, which implies that millions of tons of calcined clays are discarded yearly [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the pozzolanic activity of red ceramic waste using mechanical and physicochemical methods

et al. 2019

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Alternative cementitious materials can potentially reduce the environmental impact of the extraction of lime and the hazardous production of Portland cement. Red ceramic waste can be comminuted to fine particles with both filler and pozzolanic activity and used in Portland and lime mortars. This study presents the evaluation of the pozzolanic activity of red ceramic waste by physicochemical and mechanical methods using Portland cement and lime mortars. The evaluated waste depicted high pozzolanic activity and absence of Na2O, and consumed 32% of CaO according to the adapted Chapelle test. The compressive strength recorded in the pozzolanic activity test with lime was 7.1 MPa at 7 days. Moreover, the compressive strength of mixes with 25% replacement of Portland cement by red ceramic waste was 11% higher than the reference waste-free composition. The red ceramic waste depicted adequate characteristics to be used in the production of large volumes of Portland and lime mixes commonly employed in the civil construction.

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“…No Brasil, alguns estudos relacionados à aplicação do pensamento do ciclo de vida a materiais de construção já foram realizados. Saade et al [21] e Stafford et al [22] aplicaram a ACV para avaliação ambiental de cimentos produzidos no Brasil. Passuello el al.…”

Section: Introductionunclassified

Valorização de resíduos de ágata em argamassas e concretos: avaliação do ciclo de vida

et al. 2019

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RESUMO O uso de resíduos oriundos do processo de beneficiamento de ágata (pó de ágata) em argamassas e concretos de cimento Portland é viável tecnicamente por suas propriedades mecânicas e de durabilidade. Porém, não existem pesquisas que avaliem o perfil ambiental dos materiais produzidos. O presente estudo visa avaliar os impactos ambientais potenciais associados ao ciclo de vida de argamassas e concretos fabricados com a utilização de pó de ágata como substitutivo do cimento Portland e de agregado miúdo, respectivamente. Para tanto, considerou-se proporcionamentos definidos em análises laboratoriais executadas previamente a este trabalho, em uma avaliação do berço ao portão (cradle to gate), onde foram avaliados os seguintes impactos, de acordo com a metodologia CML-IA: mudança climática, acidificação do solo e da água, eutrofização, depleção da camada de ozônio e depleção de recursos abióticos (fóssil e não fóssil). Resultados demonstram redução dos impactos potenciais de até 30%, para o uso do resíduo em substituição ao cimento em argamassas. Reduções pouco expressivas são observadas para o uso do resíduo em substituição ao agregado miúdo, porém o ganho de resistência mecânica justifica a aplicação do resíduo em casos específicos. Uma vez que todos os impactos avaliados estão fortemente relacionados ao consumo de cimento, considera-se que o uso do resíduo em substituição ao cimento é a alternativa mais ambientalmente viável, para os casos avaliados. A participação dos processos relacionados ao transporte de mercadorias em todas as categorias de impacto valida a utilização de produtos produzidos/extraídos localmente. Finalmente, estudos futuros devem considerar o desempenho dos materiais produzidos, em comparação aos de referência.

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Life cycle assessment of the production of cement: A Brazilian case study

Cited by 105 publications

References 22 publications

Recent Progress in Green Cement Technology Utilizing Low-Carbon Emission Fuels and Raw Materials: A Review

Recent Progress in Green Cement Technology Utilizing Low-Carbon Emission Fuels and Raw Materials: A Review

Evaluation of the pozzolanic activity of red ceramic waste using mechanical and physicochemical methods

Valorização de resíduos de ágata em argamassas e concretos: avaliação do ciclo de vida

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