Life cycle assessment of the production of Portland cement: a Southern Europe case study

Stafford, Fernanda do Nascimento; Dias, Ana Cláudia; Arroja, Luís; Labrincha, J.A.; Hotza, Dachamir

doi:10.1016/j.jclepro.2016.02.110

Cited by 86 publications

(50 citation statements)

References 23 publications

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“…For a cement industry, the cradle-to-gate inventory involves all the raw materials and the essential requirements at every phase of production; while a cradle-to-grave inventory requires the above-mentioned inventory, but extended to include the useful life of the product and its disposal or recycling. Tools and software are available to assist in the collection of inventory data that corresponds to the background system [5], A good example of one such tool is the EcoInvent database, which was recently considered one of the best databases for construction materials [28,29]. There are no grounds for assessing the potential environmental effects, or even room for improvement, without an LCI.…”

Section: Life Cycle Inventory (Lci)mentioning

confidence: 99%

Comparison of Life Cycle Assessment Tools in Cement Production

Olagunju

Olanrewaju

2020

SAJIE

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Section: Life Cycle Inventory (Lci)mentioning

confidence: 99%

Comparison of Life Cycle Assessment Tools in Cement Production

Olagunju

Olanrewaju

2020

SAJIE

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“…Most importantly, its production process is pollution-free and belongs to low CO 2 emission materials [15][16][17][18][19][20][21]. Apart from being used as civil engineering materials, they can be used to seal toxic and harmful heavy metals and produce high-temperature fireproof materials and new light insulation materials [22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Performance of a Low-Carbon Foam Material of Fly-Ash-Based Foamed Geopolymer for the Goaf Filling

Wang

et al. 2020

Materials

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The treatment of goaf subsidence is important for sustainable development. Geopolymer is a new type of cementing material with excellent mechanical properties, durability, corrosion resistance, and other advantages owing to its unique three-dimensional spatial aggregation structure. Herein, a type of preparation technology of fly-ash-based foamed geopolymer suitable for goaf filling was developed by adding a chemical foaming agent to the matrix of fly-ash-based geopolymer. The mechanical properties, chemical composition, and pore structure characteristics of the samples were discussed. When the samples with different contents of fly ash, sodium metasilicate, sodium stearate, H2O2, and NaOH were prepared, a uniaxial compression test was performed to analyze the uniaxial compression failure characteristics and compression strength of the samples. The mineralogical composition of each sample was analyzed by X-ray diffraction (XRD) test, and the microstructure images of different samples were observed using scanning electron microscopy (SEM). The effects of the content of each component on the properties of the samples were discussed. Finally, the CO2 emission, energy consumption, and cost of producing fly-ash-based foamed geopolymer were analyzed. Overall, the material had the advantages of low energy consumption, low CO2 emission, environmental-protection ability, and waste utilization and thus has a broad application prospect in treating subsidence.

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“…Manufacturing of cement is a highly polluting and energy-intensive process, which caters to around 12-15% of industrial energy consumption besides 5-7% of all carbon dioxide (CO2) discharge [2]. To make matters worse, Szabó et.…”

Section: Introductionmentioning

confidence: 99%

Glass powder as replacement of cement for concrete – an investigative study

Kalakada

Doh

Chowdhury³

2019

European Journal of Environmental and Civil Engineering

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Cement production involves extensive energy absorption and emits huge quantities of CO2 in the atmosphere. The production rates are increasing annually to meet the ever increasing demand with increased energy absorption and CO2 emission. Hence, it is imperative to use materials which can replace use of cement to some extent. Conversely, waste glass is being dumped in the landfills. This practice is environmentally unsustainable since glass is nonbiodegradable. Recently it's revealed that glass when grinded to a particular fineness exhibits cementitious properties due to pozzolanic reaction. This paper investigates the fresh, mechanical and durability properties of concretes made with cement replaced by coarse glass powder (<150 µm) at various replacement levels and employing different curing conditions. The replacement levels employed were 0%, 15%, 30% and 50% by weight of cement, while the curing regimes followed were ambient, Elevated Temperature Curing (ETC) @ 40˚C and water. Scanning electron microscopy (SEM) and X-ray fluorescence (XRF) techniques were performed on cement and glass powder to investigate the microstructure and chemical composition of the materials. The initial findings show that 30% is the ideal replacement level as it exhibits quite comparable strengths, better workability and higher resistance to chloride ion penetration compared to the control mix.

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Life cycle assessment of the production of Portland cement: a Southern Europe case study

Cited by 86 publications

References 23 publications

Comparison of Life Cycle Assessment Tools in Cement Production

Comparison of Life Cycle Assessment Tools in Cement Production

Preparation and Performance of a Low-Carbon Foam Material of Fly-Ash-Based Foamed Geopolymer for the Goaf Filling

Glass powder as replacement of cement for concrete – an investigative study

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