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  2. Environmental impact of concrete - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of...

    Concrete produced by carbonation curing also shows superior performance when subject to physical degradations, e.g., freeze-thaw damage, particularly due to a pore densification effect enabled by the precipitation of carbonation products [38] The vast majority of CO 2 emissions from concrete come from cement manufacturing. Therefore, methods to ...

  3. Cement kiln - Wikipedia

    en.wikipedia.org/wiki/Cement_kiln

    As the main energy-consuming and greenhouse-gas–emitting stage of cement manufacture, improvement of kiln efficiency has been the central concern of cement manufacturing technology. Emissions from cement kilns are a major source of greenhouse gas emissions, accounting for around 2.5% of non-natural carbon emissions worldwide. [1]

  4. Cement - Wikipedia

    en.wikipedia.org/wiki/Cement

    A Chatham House study from 2018 estimates that the 4 billion tonnes of cement produced annually account for 8% of worldwide CO 2 emissions. [4] Nearly 900 kg of CO 2 are emitted for every 1000 kg of Portland cement produced. In the European Union, the specific energy consumption for the production of cement clinker has been reduced by ...

  5. Life-cycle greenhouse gas emissions of energy sources

    en.wikipedia.org/wiki/Life-cycle_greenhouse_gas...

    Greenhouse gas emissions are one of the environmental impacts of electricity generation. Measurement of life-cycle greenhouse gas emissions involves calculating the global warming potential (GWP) of energy sources through life-cycle assessment. These are usually sources of only electrical energy but sometimes sources of heat are evaluated. [1]

  6. Cement industry in the United States - Wikipedia

    en.wikipedia.org/wiki/Cement_industry_in_the...

    Cement manufacture is a source of the following airborne contaminants: particulate matter, nitrogen oxides, sulfur dioxide, carbon monoxide, and carbon dioxide. [3] Cement production releases carbon dioxide by sintering limestone or shells. It is also very energy-intensive, with the result that the cement industry is a large emitter of carbon ...

  7. Concrete - Wikipedia

    en.wikipedia.org/wiki/Concrete

    The production of clinker, the main constituent of cement, is responsible for the bulk of the sector's greenhouse gas emissions, including both energy intensity and process emissions. [133] The cement industry is one of the three primary producers of carbon dioxide, a major greenhouse gas – the other two being energy production and ...

  8. Carbon capture and storage - Wikipedia

    en.wikipedia.org/wiki/Carbon_capture_and_storage

    Power plants, cement plants, and iron and steel plants produce more dilute gas streams, for which the cost of capture and compression is USD 40–120/tonne CO 2. [66] In the United States, the cost of onshore pipeline transport is in the range of USD 2–14/tonne CO 2 , and more than half of onshore storage capacity is estimated to be available ...

  9. Portland cement - Wikipedia

    en.wikipedia.org/wiki/Portland_cement

    Environmental concerns are the high energy consumption required to mine, manufacture, and transport the cement, and the related air pollution, including the release of the greenhouse gas carbon dioxide, dioxin, [citation needed] NO x, SO 2, and particulates. Production of portland cement contributes about 10% of world carbon dioxide emissions. [26]