• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of natural fibers >Mechanical Properties of Wood Fiber Reinforced Geopolymer Composites with Sand Addition
【24h】

Mechanical Properties of Wood Fiber Reinforced Geopolymer Composites with Sand Addition

机译：木纤维加强地质复合材料的机械性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相关主题

摘要

Fly ash-based geopolymers can be considered as a greener alternative to ordinary Portland cement, featuring comparable properties and cost yet with lower CO2 emissions. New wood fiber reinforced geopolymer composites with sand addition (WFSGC) have been synthesized at room temperature by mixing powder (fly ash, sand and randomly reinforced wood fiber) with sodium silicate and sodium hydroxide as alkaline activators. New WFSGC were cured at 90 degrees C for 24 h. The design and investigation of WFSGC were based on a fix 5 wt.% percentage of sand, with variable wood fiber (5, 10, 15, 20, 25, 30 and 35 wt.%) and fly ash percentages. These WFSGC showed decreasing mechanical properties with increasing wood fiber addition as measured by the compressive strength at the cylindrical test (21.76-42.52 MPa), the compressive strength at the cubic test (31.79-39.17 MPa), the force load at upper yield at the cylindrical test (1.27-3.58KN), the flexural strength (7-10.76 MPa), compressive modulus at the cylindrical test (590,75-1021.17 MPa), the compressive modulus at cubic test (787.92-1059.79 MPa) and the flexural modulus (298.03-737.83 MPa). The density of WFRGC decreases with the addition of wood fiber (1.49-1.71 g/cm(3)). WFSGC with addition wood fibers up to 15 wt.% could be the limit for a promising green material for construction.
机译：粉煤灰的地质聚合物可被认为是普通波特兰水泥的更绿色替代品，具有相当的性能和成本，尚未与较低的二氧化碳排放。通过将粉末（飞灰，沙子和随机增强木纤维混合用硅酸钠和氢氧化钠作为碱性活性剂，在室温下在室温下合成了新的木纤维增强的地质聚合物复合材料。新的WFSGC在90℃下固化24小时。 WFSGC的设计和研究基于固定5重量％的砂百分比，具有可变木纤维（5,10,15,20,25,30和35重量％）和飞灰百分比。这些WFSGC随着通过圆柱试验（21.76-42.52MPa）的抗压强度而测量的木纤维的增加而降低了机械性能，如圆柱试验（21.76-42.52MPa），立方试验（31.79-39.17MPa）的抗压强度，在上产量下的力负荷圆柱试验（1.27-3.58KN），弯曲强度（7-10.76MPa），圆柱试验处的压缩模量（590,75-1021.17MPa），立方试验中的压缩模量（787.92-1059.79MPa）和弯曲模量（298.03-737.83 MPA）。 WFRGC的密度随着木纤维的添加而降低（1.49-1.71g / cm（3））。 WFSGC加成木纤维，高达15重量％。％可能是建筑有前途的绿色材料的极限。

著录项

获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号