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Properties of Fired Bricks Incorporating TFT-LCD Waste Glass Powder with Reservoir Sediments

机译:采用储层沉积物的TFT-LCD废玻璃粉的燃烧砖属性

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摘要

In view of increasing concerns over nonrenewable resource depletion and waste management, this study aimed to apply the Taguchi optimization technique to determine the process conditions for producing bricks by incorporating thin-film transition liquid crystal display (TFT-LCD) waste glass powder with reservoir sediments. An orthogonal array L16(45) was adopted, which consisted of five controllable four-level factors (i.e., cullet content, drying method, preheat time, sintering temperature, and error). Moreover, the analysis of variance method was used to explore the effects of the experimental factors on the density, water absorption, shrinkage ratio, loss on ignition, porosity, and compressive strength of the fired bricks. The microstructures of the fired specimens were investigated by scanning electron microscopy. Then, large-scale production techniques for fired bricks containing recycled TFT-LCD glass cullet and reservoir sediments were developed in a commercially available tunnel kiln. The test results showed that the structure of the fired specimen was loose at a sintering temperature ranging from 900 to 950 °C. However, the fired specimen showed a significant densification at the sintering temperature of 1050 °C. In addition, the Taguchi method was found to be a feasible approach for optimizing the process condition of bricks using recycled TFT-LCD glass cullet and reservoir sediments and it significantly reduced the number of tests. Further, the characteristics of fired bricks developed in the tunnel kiln were in compliance with Chinese National Standards class Ι building bricks criteria.
机译:鉴于对不科新的资源耗尽和废物管理的越来越多,本研究旨在应用Taguchi优化技术,通过利用储层沉积物结合薄膜过渡液晶显示器(TFT-LCD)废玻璃粉末来确定生产砖的工艺条件。采用正交阵列L16(45),其由五种可控的四级因子(即,Cullet含量,干燥方法,预热时间,烧结温度和误差组成。此外,使用方差方法分析来探讨试验因素对燃烧砖的密度,吸水,收缩率,点火损失,孔隙率和抗压强度的影响。通过扫描电子显微镜研究燃烧标本的微观结构。然后,在市售的隧道窑中开发了含有再生TFT-LCD玻璃Cullet和储层沉积物的燃烧砖的大规模生产技术。测试结果表明,在烧结温度范围为900至950℃的烧结温度下松动。然而,烧制的样本在1050℃的烧结温度下显示出显着的致密化。此外,发现TAGUCHI方法是使用再循环的TFT-LCD玻璃CULLET和储层沉积物优化砖的工艺条件的可行方法,并且显着降低了测试数量。此外,隧道窑中开发的燃烧砖的特性符合中国国家标准Ⅰ类建筑砖标准。

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    Chao-Wei Tang;

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  • 年度 2018
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  • 原文格式 PDF
  • 正文语种 eng
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