玄武岩地聚物砂浆的碱硅反应
DOI:
作者:
作者单位:

作者简介:

周晨林(1995—),男,长沙理工大学硕士生

通讯作者:

中图分类号:

U414

基金项目:


Alkali-silicon reaction of basalt geopolymer mortar
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    碱骨料反应是土木工程行业常见危害之一,为推进地聚物的应用,需要研究掺玄武岩骨料的碱激发偏高岭土基地聚物砂浆在高温、高碱环境下的碱骨料反应及其变形行为。研究掺两种不同粒径玄武岩骨料的偏高岭土基地聚物砂浆在80℃、2 mol/L的NaOH溶液中养护14 d后的变形行为,采用XRF、XRD、SEM等手段分析原料和产物的组成及微观结构。研究结果表明:玄武岩在地聚物中会发生碱硅反应,但地聚物碱硅反应不具有可持续性;地聚物浆体部分最终会形成沸石结构,其特殊的笼式结构能够吸附和固溶大量有害碱,能让地聚物材料有效地避免碱骨料反应的危害。

    Abstract:

    Alkali aggregate reaction is one of the common hazards in civil engineering. In order to promote the application of geopolymers,the alkali aggregate reaction and deformation behavior of alkali-activated metakaolin base polymer mortar mixed with basalt aggregate should be analyzed under high temperature and high alkali environment. Metakaolin based polymer mortar mixed with two different particle sizes of basalt aggregate was prepared. The deformation behavior was studied,when those was put in 80℃,2 mol/L NaOH solution curing for 14 days. The composition and microstructure of raw materials and products were analyzed using XRF,XRD,SEM. The results show that alkali silicon reaction of basalt is induced in geopolymer. However,the alkali silicon reaction is not sustainable. The slurry part of geopolymer will form zeolite structure eventually. A large number of harmful alkali can be absorbed and solid dissolved resulting from the special cage structure. Consequently,geopolymer material can effectively avoid the harm of alkali aggregate reaction.

    参考文献
    相似文献
    引证文献
引用本文

周晨林,钟正强,彭晖,等.玄武岩地聚物砂浆的碱硅反应[J].交通科学与工程,2022,38(2):82-86.
ZHOU Chenlin, ZHONG Zhengqiang, PENG Hui, et al. Alkali-silicon reaction of basalt geopolymer mortar[J]. Journal of Transport Science and Engineering,2022,38(2):82-86.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2022-12-19
  • 出版日期: