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首页> 外文会议>Energy technology 2018: Carbon dioxide management and other technologies >Utilization CFA-Derived Tobermorite Fiber as Crystallization Revulsive in Autoclaved Concrete Block Production
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Utilization CFA-Derived Tobermorite Fiber as Crystallization Revulsive in Autoclaved Concrete Block Production

机译：利用CFA衍生的钙锰矿纤维作为高压灭菌混凝土砌块生产中的结晶排斥剂

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摘要

Coal fly ash (CFA), as a by-product generated from coal fired power stations, is widely used for autoclaved concrete block production. It has been found that the generation of tobermorite is great benefit to the block strength during autoclaving. In this study, the tobermorite fibers synthesized from CFA and lime via the hydrothermal process are used as the revulsive to promote the mechanic strength of the concrete blocks. The results show that tobermorite fibers with 0.01-0.5 um in diameter and 1-3 um in length are obtained at 200 °C for 0.2 h. As the addition of prepared tobermorite fibers increases from 0 wt% to 2.0 wt%, the compression strength of concrete block increases from 24.6 to 40.5 MPa, and the compression strength of aerated concrete block produced under the optimized conditions can reach above 7.5 MPa.
机译：粉煤灰（CFA），是燃煤电厂产生的副产品，被广泛用于蒸压混凝土砌块的生产。已经发现，生成水铁矿对高压灭菌过程中的粘结强度有很大的好处。在这项研究中，由CFA和石灰通过水热过程合成的钙铁矿纤维被用作促进混凝土砌块机械强度的促进剂。结果表明，在200°C下加热0.2 h，可以得到直径0.01-0.5 um，长度1-3 um的堇青石纤维。随着制备的硅镁石纤维的添加量从0 wt％增加到2.0 wt％，混凝土块的抗压强度从24.6 MPa增加到40.5 MPa，在优化条件下生产的充气混凝土块的抗压强度可以达到7.5 MPa以上。

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  • 来源
  • 会议地点 Phoenix(US)
  • 作者

    Pengxu Cao; Jun Luo; Guanghui Li; Yijia Dong; Mingjun Rao; Zhiwei Peng;

  • 作者单位

    School of Minerals Processing and Bioengineering, Central South University. Changsha 410083, Hunan, China;

    School of Minerals Processing and Bioengineering, Central South University. Changsha 410083, Hunan, China;

    School of Minerals Processing and Bioengineering, Central South University. Changsha 410083, Hunan, China;

    School of Minerals Processing and Bioengineering, Central South University. Changsha 410083, Hunan, China;

    School of Minerals Processing and Bioengineering, Central South University. Changsha 410083, Hunan, China;

    School of Minerals Processing and Bioengineering, Central South University. Changsha 410083, Hunan, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Coal fly ash; Tobermorite fiber; Autoclaved concrete block Mechanic strength;

    机译：粉煤灰；雪铁矿纤维；蒸压混凝土砌块的机械强度;

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