...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials and structures >Development of a biopolymer modified geopolymer based cementitious material for enhancement of pumpable roof support
【24h】

Development of a biopolymer modified geopolymer based cementitious material for enhancement of pumpable roof support

机译：Development of a biopolymer modified geopolymer based cementitious material for enhancement of pumpable roof support

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相关主题

摘要

This paper investigates the utilization of biopolymer to improve the ductility of class F fly ash based geopolymer cementitious material developed for pumpable roof support. Specifically, two biopolymers, kappa-carrageenan (CAR) and gellan gum (GEL), at different dosages, were used to prepare the geopolymer cementitious material specimens and systematic tests were performed to measure the peak uniaxial compressive strength (UCS), Young's modulus, residual UCS, and tensile strength of the hybrid geopolymer-biopolymer cementitious material (HGBCM). The results show that incorporation of biopolymer up to 0.5 wt. slightly increases or decreases the peak UCS and Young's modulus, but effectively increases the maximum residual UCS at 0.3 wt. biopolymer as required. Furthermore, the included biopolymer slightly decreases the tensile strength, with the HGBCM containing CAR showing higher tensile strength than that containing GEL. Compared with the cementitious material currently used in practice, the HGBCM developed in this study shows superior performance.

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