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山东大学学报 (工学版) ›› 2026, Vol. 56 ›› Issue (1): 89-96.doi: 10.6040/j.issn.1672-3961.0.2024.279

• 土木工程 • 上一篇    

陶瓷抛光渣与硅灰对碱-硅酸反应的抑制作用

高鹏1,2,3,倪庄1*,周浩然1,王义猛1,王珏1   

  1. 1.内蒙古科技大学土木工程学院, 内蒙古 包头 014010;2.内蒙古自治区建筑结构防灾减灾工程技术研究中心(内蒙古科技大学), 内蒙古 包头 014010;3.内蒙古自治区土木工程安全与耐久性重点实验室(内蒙古科技大学), 内蒙古 包头 014010
  • 发布日期:2026-02-03
  • 作者简介:高鹏(1979— ),男,内蒙古包头人,副教授,硕士生导师,博士,主要研究方向为混凝土耐久性. E-mail:gaop182@163.com. *通信作者简介:倪庄(2000— ),男,江苏徐州人,硕士研究生,主要研究方向为固废混凝土的耐久性. E-mail:2484334468@qq.com
  • 基金资助:
    国家自然科学基金资助项目(52268044);内蒙古自治区自然科学基金资助项目(2021LHMS05019)

The inhibition of alkali-silica reaction by ceramic polishing waste and silica fume

GAO Peng1,2,3, NI Zhuang1*, ZHOU Haoran1, WANG Yimeng1, WANG Jue1   

  1. GAO Peng1, 2, 3, NI Zhuang1*, ZHOU Haoran1, WANG Yimeng1, WANG Jue1(1. School of Civil Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia, China;
    2. Inner Mongolia Autonomous Region Building Structure Disaster Prevention and Mitigation Engineering Technology Research Center, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia, China;
    3. Inner Mongolia Key Laboratory of Safety and Durability for Civil Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia, China
  • Published:2026-02-03

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摘要： 为探究陶瓷抛光渣(ceramic polishing waste, CPW)和硅灰(silica fume, SF)对碱-硅酸反应(alkali-silica reaction, ASR)诱发有害膨胀的影响,采用不同质量的CPW和SF替代等质量水泥进行快速砂浆棒碱骨料反应试验,并制备与砂浆棒相同质量分数的混凝土试件进行强度测试。采用X射线衍射、扫描电镜和能谱分析等方法对砂浆棒中水化产物、微观结构和凝胶物质的元素组成进行分析,明确ASR抑制机理。结果表明,抛光渣的膨胀抑制效果随质量分数的增加而增强,30%的抛光渣可以有效抑制ASR膨胀。二元复掺可以提高ASR抑制作用,但当CPW和SF的质量分数和超过30%时可能会造成混凝土强度的损失;陶瓷抛光渣与硅灰之间存在良好的协同作用,抛光渣中的Al2O3消耗碱离子并促进多种非膨胀性架状铝硅酸盐矿物的形成,其与硅灰的火山灰效应可增强凝胶的缚碱能力,进一步降低碱离子对ASR膨胀的危害。

关键词: 碱-硅酸反应, 陶瓷抛光渣, 硅灰, 抑制机理, 铝硅酸盐矿物

Abstract: In order to investigate the effects of ceramic polishing waste(CPW)and silica fume(SF)on the expansion of alkali-silica reaction(ASR), accelerated mortar bar tests were carried out with different proportions of CPW and SF instead of cement, and the strength of concrete specimens with the same replacement rate was tested. The hydration product, microstructure, and elemental composition in the mortar bars were analyzed using X-ray diffraction(XRD), scanning electron microscope(SEM), and energy dispersive spectrometer(EDS)to elucidate the ASR inhibition mechanism. The results showed that the effect of CPW on inhibiting ASR swelling increased with the increase of content, and 30% CPW could inhibit ASR expansion. A binary blend of CPW and SF further enhanced the inhibition of ASR; However, total replacement levels exceeding 30% may reduce the strength of concrete. In addition, there was a synergistic effect between CPW and SF, in which Al2O3 in CPW consumed alkali ions and promotes the formation of non-expansive aluminosilicate minerals. The pozzolanic effects of CPW and SF increased the alkali-binding capacity of the gel, further mitigating ASR expansion.

Key words: alkali-silica reaction, ceramic polishing waste, silica fume, inhibition mechanism, aluminosilicate minerals

中图分类号: 

  • TU528
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