| Preparation of Low-Cost Magnesium Oxychloride Cement Using Magnesium Residue Byproducts from the Production of Lithium Carbonate from Salt Lakes | |
Liu, Pan; Dong, Jinmei ; Chang, Chenggong; Zheng, Weixin; Liu, Xiuquan; Xiao, Xueying; Wen, Jing
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| 第一作者 | Liu, Pan |
| 2021-07 | |
| 发表期刊 | MATERIALS
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| 卷号 | 14期号:14 |
| 摘要 | Magnesium oxychloride cement (abbreviated as MOC) was prepared using magnesium residue obtained from Li2CO3 extraction from salt lakes as raw material instead of light magnesium oxide. The properties of magnesium residue calcined at different temperatures were researched by XRD, SEM, LSPA, and SNAA. The preparation of MOC specimens with magnesium residue at different calcination temperatures (from 500 degrees C to 800 degrees C) and magnesium chloride solutions with different Baume degrees (24 Baume and 28 Baume) were studied. Compression strength tests were conducted at different curing ages from 3 d to 28 d. The hydration products, microstructure, and porosity of the specimens were analyzed by XRD, SEM, and MIP, respectively. The experimental results showed that magnesium residue's properties, the BET surface gradually decreased and the crystal size increased with increasing calcination temperature, resulting in a longer setting time of MOC cement. Additionally, the experiment also indicated that magnesium chloride solution with a high Baume makes the MOC cement have higher strength. The MOC specimens prepared by magnesium residue at 800 degrees C and magnesium chloride solution Baume 28 exhibited a compressive of 123.3 MPa at 28 d, which met the mechanical property requirement of MOC materials. At the same time, magnesium oxychloride cement can be an effective alternative to Portland cement-based materials. In addition, it can reduce environmental pollution and improve the environmental impact of the construction industry, which is of great significance for sustainable development. |
| DOI | 10.3390/ma14143899 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/34350 |
| 专题 | 盐湖资源与化学实验室 |
| 推荐引用方式 GB/T 7714 | Liu, Pan,Dong, Jinmei,Chang, Chenggong,et al. Preparation of Low-Cost Magnesium Oxychloride Cement Using Magnesium Residue Byproducts from the Production of Lithium Carbonate from Salt Lakes[J]. MATERIALS,2021,14(14). |
| APA | Liu, Pan.,Dong, Jinmei.,Chang, Chenggong.,Zheng, Weixin.,Liu, Xiuquan.,...&Wen, Jing.(2021).Preparation of Low-Cost Magnesium Oxychloride Cement Using Magnesium Residue Byproducts from the Production of Lithium Carbonate from Salt Lakes.MATERIALS,14(14). |
| MLA | Liu, Pan,et al."Preparation of Low-Cost Magnesium Oxychloride Cement Using Magnesium Residue Byproducts from the Production of Lithium Carbonate from Salt Lakes".MATERIALS 14.14(2021). |
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