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首页> 外文会议>Developments in strategic materials and computational design III >THE EFFECT OF BASALT CHOPPED FIBER REINFORCEMENT ON THE MECHANICAL PROPERTIES OF POTASSIUM BASED GEOPOLYMER
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THE EFFECT OF BASALT CHOPPED FIBER REINFORCEMENT ON THE MECHANICAL PROPERTIES OF POTASSIUM BASED GEOPOLYMER

机译：玄武岩切碎的纤维增强对钾基地质聚合物力学性能的影响

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摘要

The processing and mechanical properties of potassium-based geopolymer (K_2O·Al_2O_3·4SiO_2·11H_2O) composites containing 1/2 inch long basalt chopped fiber reinforcement have been evaluated and compared to previous data for 1/4 inch long basalt fiber reinforcement. Geopolymer composite test samples were hand fabricated at ambient temperature and cured in a constant humidity, 50℃ temperature/humidity chamber. The effects of varying weight percent of fiber reinforcement and heat treatment temperature for fixed fiber content were examined in this study. Reinforcement by ten weight percent basalt chopped fibers significantly improved the room temperature average bend strength over that of pure geopolymer from roughly 2 MPa to 27 MPa. The composite was able to preserve 75% bend strength after heat treatment to 200℃ and 12% strength after heat treatment to 600℃, with only five weight percent of fiber reinforcement. Addition of 1/2 inch long fibers showed 20-50% strength increases over the use of 1/4 inch fibers. A Weibull statistical analysis was performed showing a significant increase in reliability with increasing amounts of chopped basalt fiber reinforcement.
机译：评估了含1/2英寸长玄武岩短切纤维增强材料的钾基地质聚合物（K_2O·Al_2O_3·4SiO_2·11H_2O）复合材料的加工性能和力学性能，并将其与1/4英寸长玄武岩纤维增强材料的先前数据进行了比较。地质聚合物复合材料测试样品是在环境温度下手工制作的，并在恒定湿度，50℃温度/湿度的室内进行固化。在这项研究中，研究了不同重量百分比的纤维增强材料和热处理温度对固定纤维含量的影响。十％（重量）的玄武岩短切纤维的增强作用使室温下的平均弯曲强度比纯地质聚合物高出约2 MPa到27 MPa。该复合材料在热处理至200℃后仍能保持75％的弯曲强度，而在热处理至600℃后仍能保持12％的强度，而纤维增强仅占5重量％。添加1/2英寸长的纤维比使用1/4英寸纤维显示出20-50％的强度增加。进行的威布尔统计分析表明，随着切碎的玄武岩纤维增强材料数量的增加，可靠性显着提高。

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  • 会议地点 Daytona Beach FL(US);Daytona Beach FL(US);Daytona Beach FL(US);Daytona Beach FL(US);Daytona Beach FL(US);Daytona Beach FL(US)
  • 作者

    Sean S. Musil; Greg Kutyla; W. M. Kriven;

  • 作者单位

    Department of Material Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA;

    Department of Material Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA;

    Department of Material Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA;

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  • 正文语种 eng
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