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首页> 外文期刊>Bulletin of engineering geology and the environment >Experimental investigation of expansion behavior and uniaxial compression mechanical properties of expansive grout under different constraint conditions
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Experimental investigation of expansion behavior and uniaxial compression mechanical properties of expansive grout under different constraint conditions

机译：不同约束条件下膨胀灌浆扩张行为和单轴压缩力学性能的实验研究

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摘要

Traditional grouting technology only provides a bonding effect to surrounding rock fissures. Here, a new expansive grout was prepared using a high-efficiency soundless crush agent as the expansion source to provide an extrusion effect in the early stage of hydration development. Expansion and uniaxial compressive strength (UCS) tests under three expansion constraint conditions were designed to analyze the expansion behavior and mechanical properties of the expansive grout. The results show that the expansion development of the grout mostly occurred within 24-72 h after final setting; greater restrictions in the constraint conditions produced a smaller volume expansion ratio and a greater compressive strength. The volume expansion ratio and UCS of expansive grout are considerable; volume expansion occurs rapidly, while the strength increases, indicating good application prospects in grouting reinforcement engineering.
机译：传统的灌浆技术仅为周围岩石裂缝提供粘合效果。 这里，使用高效无声的压碎剂作为膨胀源制备新的膨胀灌浆，以在水合发育的早期阶段提供挤出效果。 旨在在三个扩展约束条件下进行膨胀和单轴抗压强度（UCS）测试，以分析膨胀灌浆的膨胀行为和力学性能。 结果表明，灌浆的膨胀发展主要发生在最终设置后24-72小时内; 在约束条件下更大的限制产生较小的体积膨胀率和更大的抗压强度。 膨胀灌浆的体积膨胀比和UC是相当大的; 体积扩展迅速发生，而强度增加，表明灌浆加固工程中的良好应用前景。

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  • 作者

    Yao Nao; Deng Xingmin; Wang Qihu; Ye Yicheng; Zhang Wenhao; Liu Yiding;

  • 作者单位

    Wuhan Univ Sci & Technol Sch Resources & Environm Engn Wuhan Peoples R China|Hubei Key Lab Efficient Utilizat & Agglomerat Met Wuhan Peoples R China;

    Wuhan Univ Sci & Technol Sch Resources & Environm Engn Wuhan Peoples R China;

    Wuhan Univ Sci & Technol Sch Resources & Environm Engn Wuhan Peoples R China|Hubei Key Lab Efficient Utilizat & Agglomerat Met Wuhan Peoples R China;

    Wuhan Univ Sci & Technol Sch Resources & Environm Engn Wuhan Peoples R China|Hubei Key Lab Efficient Utilizat & Agglomerat Met Wuhan Peoples R China;

    Wuhan Univ Sci & Technol Sch Resources & Environm Engn Wuhan Peoples R China;

    Wuhan Univ Sci & Technol Sch Resources & Environm Engn Wuhan Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Expansive grout; Expansion behavior; Mechanical properties; UCS;

    机译：膨胀灌浆;膨胀行为;机械性能;UCS;

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