使用完整的工厂设计分析无水化粘合剂的压力
Dalia Nizevičienė1, Nora Kybartienė2, Vacius Jusas3
1Faculty of Electrical and Electronics Engineering, Kaunas University of Technology, Studentų Str. 48, LT-50254 Kaunas, Lithuania.
Materials (Basel, Switzerland)
|September 28, 2023
概括
烟气脱硫石膏 (FGD石膏) 烧温度随着时间的推移显著影响无水化物粘合剂强度,水化时间是最有影响的因素. 像K2SO4这样的激活剂显示出比Na2SO4更大的效果.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 化学工程是化学工程的重要组成部分.
背景情况:
- 烟气脱硫石膏 (FGD石膏) 是化石燃料发电厂的副产品.
- FGD石膏可以被重新利用成为有价值的无水化结合剂.
- 对于可持续的建筑材料来说,了解影响无水化物粘合剂特性的因素至关重要.
研究的目的:
- 为了研究化温度,活性剂 (K2SO4,Na2SO4) 和它们的数量对无水化粘合剂压力强度的影响.
- 通过统计分析来确定影响压力强度的主要因素.
- 开发一种对无水化物粘合剂强度的预测数学模型.
主要方法:
- 在500-800°C的温度下对FGD石膏进行化.
- 添加K2SO4和Na2SO4激活剂以不同的百分比 (0-2%).
- 在3-28天内对无水酸粘合剂样品进行水.
- 压力强度测试. 压力强度测试.
- 应用2^3全因数设计和多重线性回归进行分析.
主要成果:
- 增加烧温度最初会降低早期的压力强度,但在28天后会显著增加.
- 激活剂K2SO4和Na2SO4显著增强了早期的力量,但长期影响最小.
- 水时间被确定为影响压力强度的最重要因素,其次是K2SO4对Na2SO4的影响.
- 开发了一个具有R2接近1和MAPE<10%的预测模型.
结论:
- 化温度和水化时间对于优化FGD石膏基无水化粘合剂强度至关重要.
- 激活剂的选择 (K2SO4>Na2SO4) 影响早期的性能,但长期的强度主要由水化和化条件来决定.
- 开发的数学模型准确地预测了在研究的参数范围内无水化粘合剂的压力强度.
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