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中国农学通报 ›› 2017, Vol. 33 ›› Issue (13): 146-151.doi: 10.11924/j.issn.1000-6850.casb17020017

所属专题: 油料作物 园艺

• 工程 机械 水利 装备 • 上一篇    下一篇

油菜秸秆灰分混凝土与钢筋之间粘结性能研究

易督航1,刘保华1,2,曾 哲1,易 恋1,周 雲1,黄 伟1   

  1. (1湖南农业大学工学院,长沙 4101282;2湖南省现代农业装备工程技术研究中心,长沙 410128)
  • 收稿日期:2017-02-07 修回日期:2017-03-16 接受日期:2017-03-17 出版日期:2017-05-16 发布日期:2017-05-16
  • 通讯作者: 易督航
  • 基金资助:
    湖南省政府重大专项“湖南双季稻区油菜早熟品种选育和机械化生产技术研究与生产示范机械化生产部分”(湘府阅[2014]35号);湖南省研究生科研创新项目“移栽油菜成孔器成孔机理及装备研究”(CX201613286);湖南省科技厅平台建设项目“湖南省现代农业装备工程技术研究中心”(湘财教指[2014]10号)。

Bond Behavior Between Rape Straw Ash Concrete and Steel Bar

Yi Duhang1, Liu Baohua1,2, Zeng Zhe1, Yi Lian1, Zhou Yun1, Huang Wei1   

  1. (1College of Engineering, Hunan Agricultural University, Changsha 410128;2Hunan Provincial Engineering Technology Research Center for Modern Agricultural Equipment, Changsha 410128)
  • Received:2017-02-07 Revised:2017-03-16 Accepted:2017-03-17 Online:2017-05-16 Published:2017-05-16

摘要: 为了探究油菜秸秆灰分的掺入对钢筋-混凝土之间粘结性能的影响。对3种不同油菜秸秆灰分掺量的钢筋-油菜秸秆灰分混凝土试件进行中心拉拔试验,并与钢筋-普通混凝土粘结性能作对比试验。结果表明:钢筋-油菜秸秆灰分混凝土粘结强度与混凝土抗压强度呈正相关。当水胶比一定时,随着油菜秸秆灰分掺量的增加,钢筋-油菜秸秆灰分混凝土的粘结强度降低。水胶比为0.47时的钢筋-油菜秸秆灰分粘结性能与普通混凝土最为接近,为最优配合比。由试验结果可知,在承重要求较低的普通钢筋混凝土结构中,采用适量油菜秸秆灰分等量替代水泥,对于节省水泥生产能源和科学合理利用农业废弃物两方面均具有重要意义。

关键词: 甜菜, 甜菜, 叶部性状, 多样性指数, 聚类分析

Abstract: The paper aims to explore influences of bond behavior between steel bar and concrete mixed with rape straw ashes. To do this, a center pull-out test on 3 test-pieces of steel bars and rape straw ashes concrete with 3 different amounts of rape straw ashes was conducted, and the corresponding bond behaviors were compared at the same time. The results showed that a positive correlation between steel bars and rape straw ashes concrete and the compression strength of concrete; when the water-binder ratio was constant, the bond behavior of steel bars and rape straw ashes concrete decreased with the increase of rape straw ashes amount; the water-binder ratio of 0.47 could make the bond behavior between steel bars and rape straw ashes nearly the same with that of plain concrete, which was the optimal mix ratio. Therefore, by replacing cement with the right and equal amount of rape straw ashes in the ordinary reinforced concrete with lower bearing requirements, energy can be saved in cement production and agriculture wastes can be used rationally and scientifically.