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首页> 外文期刊>Journal of Cleaner Production >Reduction in CO_2 emissions during production of cement, with partial replacement of traditional raw materials by civil construction waste (CCW)
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Reduction in CO_2 emissions during production of cement, with partial replacement of traditional raw materials by civil construction waste (CCW)

机译:在水泥生产过程中减少CO_2排放,通过民用建筑垃圾部分更换传统原材料(CCW)

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摘要

The cement industry is responsible for a significant portion of greenhouse gas (GHG) emissions, generated in the clinkering phase of cement production, which contribute to global warming. The present work proposes the reuse of civil construction waste (CCW) as an alternative raw material in the production of Portland clinker, with partial replacement of limestoneeclay mixtures. The raw materials were characterized chemically and by thermogravimetric tests (TG/DTG), with subsequent evaluation of the resulting dosed raw mixes. The results showed that the partial substitution of limestoneeclay mixture provides a reduction of up to 8.1% in CO2 emissions from raw materials in clinker production, because CCW acts as an alternative source of calcium in the formulation of the raw mix, partially replacing limestone, without negatively affecting the formation of the main mineralogical phases of cement, especially alite (C3S). (C) 2020 Elsevier Ltd. All rights reserved.
机译:水泥行业负责大部分温室气体(GHG)排放,在水泥生产的克莱克林生产中产生,这有助于全球变暖。本工作提出重新利用民用建筑废物(CCW)作为波特兰熟料生产中的替代原材料,部分替代石灰石混合物。原料化学表征和通过热重试验(TG / DTG),随后评估所得的加剂量的原料混合物。结果表明,石灰石烯混合物的部分取代可在熟料生产中减少8.1%的二氧化碳排放量,因为CCW作为备用钙的替代源,在制剂中,部分替代石灰石,没有对水泥,特别是铝的主要矿物学阶段的形成负面影响。 (c)2020 elestvier有限公司保留所有权利。

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