Performance change of shaft lining concrete under simulated coastal ultra-deep mine environments
Performance change of shaft lining concrete under simulated coastal ultra-deep mine environments
复制标题
模拟沿海超深矿井环境下井壁混凝土性能变化
DOI：
10.1016/j.conbuildmat.2019.116909
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发表时间：
2020-01
影响因子：
7.4
通讯作者：
Ji Hong-guang
中科院分区：
文献类型：
--
作者：
Zhou Yu-cheng;Liu Juan-hong;Huang Shun;Yang Hai-tao;Ji Hong-guang
研究了纤维增强高性能混凝土（FRHPC）和纤维增强活性粉末混凝土（FRRPC）在模拟沿海超深矿井环境下的性能变化。通过一系列定量方法研究了硬化浆体的相含量、形貌和孔结构特征，并计算了水化度（DoH）和火山灰反应度（DoPR）。实验结果表明，高性能硬化浆体（HPHP）和活性粉末硬化浆体（RPHP）在28 d时的DoH和DoPR有很大差异，浸泡后表现出一致的行为。沿海超深矿井高性能混凝土的破坏可能是由Friedel盐的结晶压力引起的。此外，地下高温对混凝土的耐久性略有好处。所得结论为超深滨海矿山建设提供了理论支持。
This paper reports research on the performance change of fibre-reinforced high-performance concrete (FRHPC) and fibre-reinforced reactive powder concrete (FRRPC) subjected to simulated coastal ultra-deep mine environments. The phase content, morphology, and pore structure characteristics of the hardened pastes were investigated by means of a series of quantitative methods, and the degree of hydration (DoH) and degree of pozzolanic reaction (DoPR) were calculated. The experimental results indicate that there is a great difference in DoH and DoPR between high-performance hardened paste (HPHP) and reactive powder hardened paste (RPHP) at 28 days and that they show consistent behaviour after immersion. The failure of high-performance concrete in coastal ultra-deep mines may be caused by the crystallization pressure of Friedel’s salt. Moreover, a high underground temperature can be slightly beneficial for the durability of the concrete. The conclusions obtained provide theoretical support for the construction of ultra-deep coastal mines.
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影响因子：
7.4
作者：
D. Soulioti;N. Barkoula;A. Paipetis;T. Matikas;T. Shiotani;D. Aggelis
通讯作者：
D. Soulioti;N. Barkoula;A. Paipetis;T. Matikas;T. Shiotani;D. Aggelis
DOI：
10.1007/s11595-010-0056-5
发表时间：
2010-08
期刊：
Journal of Wuhan University of Technology-Mater. Sci. Ed.
影响因子：
--
作者：
Juanhong Liu;S. Song
通讯作者：
Juanhong Liu;S. Song
钢纤维混凝土在氯化钠溶液中冻融循环的低速弯曲冲击响应
影响因子：
7.4
作者：
Zhang, Wuman;Chen, Shuhang;Zhou, Yao
通讯作者：
Zhou, Yao
影响因子：
10.5
作者：
M. Shafikhani;S. Chidiac
通讯作者：
M. Shafikhani;S. Chidiac
超细不锈钢丝增强活性粉末混凝土动态冲击行为及本构模型
影响因子：
7.4
作者：
Dong, Sufen;Han, Baoguo;Ou, Jinping
通讯作者：
Ou, Jinping