基于响应面法的氯氧镁水泥固化淤泥性能研究

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发布时间：2020-01-06 00:00:00

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基于响应面法的氯氧镁水泥固化淤泥性能研究

Study on the performance of magnesium chloroxylate cement cured silt based on response surface methodology

2025年第4期

淤泥；氯氧镁水泥（MOC）；硅酸钠；磷酸钠；响应面法；无侧限抗压强度

Silt; Magnesium oxychloride cement(MOC); Sodium silicate; Sodium phosphate; Response surface methodology; Unconfined compressive strength

2025年第4期

10.19761/j.1000-4637.2025.04.093.06

曹宽宽

中铁建设集团有限公司，北京 100000

曹宽宽

浏览量:

1000

英文名 : Study on the performance of magnesium chloroxylate cement cured silt based on response surface methodology

刊期 : 2025年第4期

关键词 : 淤泥；氯氧镁水泥（MOC）；硅酸钠；磷酸钠；响应面法；无侧限抗压强度

Key words : Silt; Magnesium oxychloride cement(MOC); Sodium silicate; Sodium phosphate; Response surface methodology; Unconfined compressive strength

刊期 : 2025年第4期

DOI : 10.19761/j.1000-4637.2025.04.093.06

文章编号 :

基金项目 :

作者 : 曹宽宽

单位 : 中铁建设集团有限公司，北京 100000

曹宽宽

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

摘要

参数

结论

参考文献

引用本文

摘要：研究了MgO与MgCl2的摩尔比（6、8、10、12、14）、硅酸钠掺量（2%、4%、6%、8%、10%）、磷酸钠掺量（0.2%、0.4%、0.6%、0.8%、1.0%）对氯氧镁水泥（MOC）固化淤泥试件无侧限抗压强度的影响，并通过响应面法确定了摩尔比、硅酸钠掺量和磷酸钠掺量的较优取值范围。结果表明：随着摩尔比、硅酸钠掺量或磷酸钠掺量的增加，MOC固化淤泥试件的7 d无侧限抗压强度基本先增后降；硅酸钠与磷酸钠复掺对MOC固化淤泥试件7 d无侧限抗压强度的提高效果优于二者单掺；摩尔比与硅酸钠掺量、磷酸钠掺量与硅酸钠掺量间的交互作用显著；响应面法回归模型的相关系数R²为0.972 1，模型精度较高；摩尔比、硅酸钠掺量、磷酸钠掺量的较优取值范围分别为9.34~9.75、4.39%~5.25%、0.38%~0.53%。

Abstract: The effects of the molar ratios (6, 8, 10, 12, 14) of MgO to MgCl2, the content(2%, 4%, 6%, 8%, 10%) of sodium silicate, and the content(0.2%, 0.4%, 0.6%, 0.8%,1.0%) of sodium phosphate on the unconfined compressive strength of magnesium oxychloride cement(MOC) cured silt specimens were investigated, and the optimal range of molar ratio, sodium silicate content and sodium phosphate content were determined through the response surface methodology. The results show that the 7 d unconfined compressive strength of MOC cured silt specimens basically increases and then decreases with the increase of molar ratio, the content of sodium silicate or sodium phosphate. The improvement of 7 d unconfined compressive strength of MOC cured silt specimens with sodium silicate and sodium phosphate is better than that with sodium silicate or sodium phosphate alone. The interactions between the molar ratio and the content of sodium silicate, the content of sodium phosphate and sodium silicate are significant. The correlation coefficient R² of the regression model based on response surface methodology is 0.972 1, the model is of high accuracy. The optimum range of molar ratio, sodium silicate content, and sodium phosphate content are 9.34~9.75, 4.39%~5.25%, and 0.38%~0.53%, respectively.

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基于响应面法的氯氧镁水泥固化淤泥性能研究

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