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Study the effect of physico-mechanical characteristics of ceramic tiles after addition of river silts and wollastonite derived from wastes

机译：研究添加废料中的河粉和硅灰石后瓷砖的物理机械特性的影响

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摘要

This study investigates the feasibility of using river silt and wastes derived wollastonite as ingredients to produce ceramic tiles. Silts are collected from Kosi river, India and wollastonite are synthesized through waste eggshells and rice husk ash (RHA) at 1100 degrees C. Different samples are fabricated with different compositions based upon partial and full replacement of quartz and feldspar by the silt and wollastonite, respectively. The samples are prepared by semi-dry process and sintering is done at different temperatures, i.e., 1000 degrees C, 1100 degrees C and 1130 degrees C in air atmosphere. Several characterizations like densification behavior, bulk density (BD), X-ray diffraction (XRD), scanning electron microscope (SEM), compressive strength (CS), three-point bending strength (BS) and acid-alkali resistance of sintered specimen are investigated. The obtained results show that the use of silt is reduced the physical and mechanical properties of tile samples at low sintering temperature but at high temperature, mechanical properties don't have significant influence. Subsequently, all the properties are greatly improved with the addition of wollastonite in the place of K-feldspar. "sw-3" sample (fully replaced quartz and feldspar) sintered at 1100 degrees C fulfills the ISO standard and offers bending strength 48.82 MPa and water absorption similar to 0.36 wt%. This promising characteristic confirms the feasibility of recycling wastes for tiles manufacturing and leads to environmental and economic benefits in ceramic industries. (C) 2019 Elsevier Ltd. All rights reserved.
机译：这项研究调查了使用河淤泥和硅灰石废料生产瓷砖的可行性。从印度的科西河收集淤泥，并在1100摄氏度下通过废蛋壳和稻壳灰（RHA）合成硅灰石。通过用淤泥和硅灰石部分和完全替代石英和长石，以不同的成分制成不同的样品，分别。样品是通过半干法制备的，并且在空气中在不同的温度，即1000℃，1100℃和1130℃下进行烧结。烧结样品的致密化行为，堆密度（BD），X射线衍射（XRD），扫描电子显微镜（SEM），抗压强度（CS），三点弯曲强度（BS）和耐酸碱性等几个特征为调查。获得的结果表明，在低烧结温度下，淤泥的使用会降低瓷砖样品的物理和机械性能，但在高温下，机械性能不会产生重大影响。随后，用硅灰石代替钾长石可大大改善所有性能。在1100摄氏度下烧结的“ sw-3”样品（完全替代石英和长石）符合ISO标准，并提供48.82 MPa的弯曲强度和0.36 wt％的吸水率。这一令人鼓舞的特性证实了回收瓷砖制造废料的可行性，并在陶瓷工业中带来了环境和经济利益。 （C）2019 Elsevier Ltd.保留所有权利。

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  • 来源
    《Construction and Building Materials》 |2019年第10期|315-325|共11页
  • 作者

    Hossain Sk S.; Ranjan Vikash; Pyare Ram; Roy P. K.;

  • 作者单位

    BHU, IIT, Dept Ceram Engn, Varanasi 221005, Uttar Pradesh, India;

    BHU, IIT, Dept Ceram Engn, Varanasi 221005, Uttar Pradesh, India;

    BHU, IIT, Dept Ceram Engn, Varanasi 221005, Uttar Pradesh, India;

    BHU, IIT, Dept Ceram Engn, Varanasi 221005, Uttar Pradesh, 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

    Tiles; Kosi river; Silt; Wollastonite; Waste;

    机译：瓷砖;科西河;泥土;硅灰石;废物;

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