聚氯化铝渣免烧陶粒的制备及性能研究

杨昊臻; 刘清; 招国栋; 金丹; 石艳军; 杨瑞

doi:10.13205/j.hjgc.202510009

聚氯化铝渣免烧陶粒的制备及性能研究

doi: 10.13205/j.hjgc.202510009

杨昊臻¹,
刘清^1, ,,
招国栋¹,
金丹^1,2,
石艳军³,
杨瑞⁴

1. 南华大学土木工程学院, 湖南衡阳 421001;
2. 中国核建高性能混凝土重点实验室, 湖南衡阳 421001;
3. 湖南省亿辉建筑有限公司, 湖南衡阳 421001;
4. 湖南工学院, 湖南衡阳 421002

基金项目:

国家自然科学基金-面上项目（42177074）；湖南省自然科学基金项目联合项目（2024TT7433）；湖南省自然科学基金联合项目（2023JJ50133）；湖南省教育厅重点项目（21A0286）

详细信息

作者简介:
杨昊臻（2000—），男，硕士，主要研究方向为固废资源化利用。1254429725@qq.com

通讯作者:
刘清（1979—），女，博士，教授，主要研究方向为矿冶废渣、废水污染控制与资源化技术。Liuqing197901@163.com

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出版历程
- 收稿日期: 2025-04-03
- 录用日期: 2025-06-01
- 修回日期: 2025-05-21
- 网络出版日期: 2025-12-03
- 刊出日期: 2025-10-01

Preparation and performance of non-fired ceramics from polyaluminum chloride slag

1. School of Civil Engineering, Nanhua University, Hengyang 421001, China;
2. China Nuclear Construction High Performance Concrete Key Laboratory, Hengyang 421001, China;
3. Hunan Yihui Construction Co., Ltd., Hengyang 421001, China;
4. Hunan Institute of Technology, Hengyang 421002, China

摘要

摘要: 针对聚氯化铝工业废渣堆存造成的资源浪费问题，创新性地开发了聚氯化铝渣基免烧陶粒制备工艺。通过系统考察不同因素对陶粒性能的影响，结合扫描电子显微镜（SEM）微观形貌表征和X射线衍射（XRD）物相分析，观察其物相的生成以及机理分析。实验结果显示：当水灰比为0.24、渣灰比为5∶5、水泥掺量为15%、硅酸钠含量为9%以及NaOH含量为11%时，聚氯化铝渣免烧陶粒的成型性能达到最佳状态；该条件下免烧陶粒的筒压强度为4.6 MPa、吸水率为6.74%、堆积密度为795.8 kg/m³，满足GB/T17431.1—2010《轻集料及其实验方法》中陶粒要求；微观分析结果表明，28 d的免烧陶粒主要物相为石英和部分凝胶体，胶凝体之间相互连结，填充孔隙，结构更加致密。经计算后免烧陶粒的生产总成本约288.46元/m³。
- 聚氯化铝渣 /
- 免烧陶粒 /
- 制备工艺 /
- 性能 /
- 机理分析
Abstract: To address the issue of resource waste caused by the storage of industrial waste residue from polyaluminum chloride， this study innovatively developed a process for preparing non-fired ceramic particles based on polyaluminum chloride slag. By systematically examining the effects of different factors on the performance of ceramic particles， combined with scanning electron microscopy （SEM） microstructure characterization and X-ray diffraction （XRD） phase analysis， the generation of the phases and its mechanism was observed. The results showed that the optimal water-cement ratio for the formation of non-fired ceramic particles from polyaluminum chloride slag was 0.24， the slag-cement ratio was 5∶5， the cement addition was 15%， the sodium silicate content was 9%， and the sodium hydroxide content was 11%； the cylindrical compressive strength of non-fired ceramic particles under this condition was 4.6 MPa， the bulk density was 795.8 kg/m³， and its water absorption capacity was 6.74%， which met the ceramic particle performance requirements in China’s national standard， Lightweight Aggregates and Their Experimental Methods （GB/T 17431.1—2010）. The microscopic analysis showed that the main phase of 28 day non-fired ceramic particles is quartz and gel. The gel bodies were connected and the pores were filled， to make the structure more compact. Preparatoin of the non-fired ceramic particles was with a total cost of approximately 288.46 yuan/m³ through calculation.
- polyaluminum chloride slag /
- non-fired ceramics particle /
- preparation process /
- performance /
- mechanism analysis

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