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首页> 外文期刊>Construction and Building Materials >Accelerated carbonation of biochar reinforced cement-fly ash composites: Enhancing and sequestering CO_2 in building materials
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Accelerated carbonation of biochar reinforced cement-fly ash composites: Enhancing and sequestering CO_2 in building materials

机译：生物炭增强的水泥-粉煤灰复合材料的加速碳化：增强和隔离建筑材料中的CO_2

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摘要

Biochar produced from the pyrolysis of corn stover biomass was added as a filler material in the cement-fly ash blocks as 2%, 4%, 6% and 8% of total weight. The resultant blocks were subjected to two hours mineral carbonation at (3 day) after demoulding to enhance the CO2 uptake and sequester carbon in the blocks. Along with that, 28 days compressive strength of un-carbonated blocks was determined to gauge the effect of biochar as the filler material on the strength of the specimens. Results showed that there was an enhanced CO2 uptake on 3 days compressive strength and biochar dosage was optimised at 4% and 6% depending on the chosen mix. The 28 days compressive strength of un-carbonated blocks showed that there was an increase in the strength as biochar addition increased to a certain extent, however, thereafter it decreased with the further addition of biochar. (C) 2020 Elsevier Ltd. All rights reserved.
机译：将玉米秸秆生物质热解产生的生物炭作为填充材料添加到水泥粉煤灰块中，分别占总重量的2％，4％，6％和8％。脱模后（3天）将所得的块料进行两个小时的矿物碳酸化处理，以提高块料中的CO2吸收和固碳。同时，确定28天未碳化块的抗压强度，以衡量作为填充材料的生物炭对样品强度的影响。结果表明，在3天的抗压强度下，吸收的CO2有所增加，根据所选择的混合物，生物炭的剂量被优化为4％和6％。未碳化块的28天抗压强度表明，随着生物炭添加量的增加，强度有所增加，但随后随着生物炭的添加而降低。 （C）2020 Elsevier Ltd.保留所有权利。

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  • 来源
    《Construction and Building Materials》 |2020年第may30期|118363.1-118363.10|共10页
  • 作者

  • 作者单位

    Univ Auckland Fac Engn Dept Civil & Environm Engn Private Bag 92019 Auckland 1142 New Zealand;

    Zhejiang Univ State Key Lab Clean Energy Utilizat Hangzhou Peoples R China;

    Indian Inst Technol Dept Civil & Environm Engn Kharagpur W Bengal India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    CO2 sequestration; Biochar; Fly ash; Accelerated carbonation; Compressive strength; Techno;

    机译：二氧化碳封存;生物炭粉煤灰;加速碳化;抗压强度;Techno;

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