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《武汉工程大学学报》| 徐梦婷 等:机械力-化学作用协同诱导无水石膏晶格畸变及性能研究

  • 2026-10-08 20:34:37
《武汉工程大学学报》| 徐梦婷 等:机械力-化学作用协同诱导无水石膏晶格畸变及性能研究

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中文摘要：

无水石膏（CSA）作为一种资源丰富的固体废弃物，在工程建筑、家居装修及石膏砌块等领域具有广阔的应用前景，但其早期抗压强度发展缓慢及耐水性较差限制了其实际应用。通过机械力球磨及掺入硫酸钠、硫酸铝与生石灰化合物协同激发的方式对CSA进行改性，成功制备CSA基复合胶凝材料。利用扫描电子显微镜和X射线衍射表征CSA基复合胶凝材料的微观形貌及物相组成。研究表明：改性后CSA基胶凝材料的晶体形貌由原先破碎的块状转变为规整的短柱状结构。同时，其1 d与28 d抗压强度最高分别可达10.51、21.09 MPa，28 d软化系数达到0.88。机械力球磨与化学作用协同可有效诱导CSA发生晶格畸变，进而促进其水化进程，显著增强抗压强度并改善其耐水性能。

关键词：

   无水石膏；机械力球磨；抗压强度；耐水性

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