An Experimental Study of the Synergistic Preparation of Self-compacting Fluid-like Solidified Soil by Flocculation-filtration-consolidation

Zhou Yongwei; Liu Jinhai; Pu Hefu; Chen Zhongping; Min Ming

doi:10.12052/gdutxb.250025

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An Experimental Study of the Synergistic Preparation of Self-compacting Fluid-like Solidified Soil by Flocculation-filtration-consolidation

更新时间：2026-05-27

- An Experimental Study of the Synergistic Preparation of Self-compacting Fluid-like Solidified Soil by Flocculation-filtration-consolidation
- Vol. 42, Issue 2, Pages: 136-142(2025)
- 作者机构：
  
  1. 湖北地矿建设工程承包集团有限公司,湖北,武汉,430050
  2. 中国三峡建工(集团) 有限公司,四川,成都,610041
  3. 深圳大学土木与交通工程学院,广东,深圳,518060
  4. 华中科技大学土木与水利工程学院,湖北,武汉,430074
- 作者简介：
- 基金信息：
- DOI：10.12052/gdutxb.250025
  CLC： TU435
- Published：2025
- 稿件说明：
移动端阅览
周永伟, 刘金海, 蒲诃夫, 等. 絮凝−过滤−固化协同制备自密实流态固化土试验研究[J]. 广东工业大学学报, 2025, 42(2): 136–142.

Zhou Yongwei, Liu Jinhai, Pu Hefu, et al. An Experimental Study of the Synergistic Preparation of Self-compacting Fluid-like Solidified Soil by Flocculation-filtration-consolidation[J]. 2025, 42(2): 136-142.
周永伟, 刘金海, 蒲诃夫, 等. 絮凝−过滤−固化协同制备自密实流态固化土试验研究[J]. 广东工业大学学报, 2025, 42(2): 136–142. DOI： 10.12052/gdutxb.250025

Zhou Yongwei, Liu Jinhai, Pu Hefu, et al. An Experimental Study of the Synergistic Preparation of Self-compacting Fluid-like Solidified Soil by Flocculation-filtration-consolidation[J]. 2025, 42(2): 136-142. DOI： 10.12052/gdutxb.250025.

摘要

快速高效处理大量的高含水率泥浆已成为迫切的工程和环境问题，将其制备成自密实流态固化土是一种有效的资源化利用途径。通过室内试验探究了絮凝−过滤−固化协同制备自密实流态固化土的方法，分析了絮凝、过滤过程、固化剂掺量以及减水剂添加顺序和掺量等因素对固化土流动性和无侧限抗压强度的影响。研究结果表明，絮凝剂的使用能有效降低泥浆流动值，增强固化土的强度。过滤措施显著加快了自密实流态固化土的制备速度，1 h内即可达到所需流动性，且无侧限抗压强度是未过滤试样的2倍。掺加水泥可显著提高固化土的无侧限抗压强度，但对流动性影响不大。减水剂在絮凝剂和固化剂之后添加能够显著提升固化土的流动性，0.2%的掺量效果最佳。综上，使用絮凝−过滤−固化协同的处理方法能有效制备出流动性良好、孔隙率更低、强度更高的自密实流态固化土。

Abstract

The urgent engineering and environmental challenge of efficiently processing large volumes of high-water-content sludge is addressed by transforming it into self-compacting flowable solidified soil

which serves as an effective resource utilization strategy. This study investigates the method of flocculation

filtration

and solidification in the laboratory preparation of self-compacting flowable solidified soil

analyzing the effects of the flocculation process

filtration process

admixture of solidifiers

and the addition of water-reducing agents on the fluidity and unconfined compressive strength of the solidified soil. Results indicate that the use of flocculants effectively reduces the flow value of the sludge and enhances the strength of the solidified soil. Filtration significantly accelerates the preparation of the self-compacting flowable solidified soil

achieving the desired fluidity within one hour and doubling the unconfined compressive strength compared with unfiltered samples. While the addition of cement significantly enhances the unconfined compressive strength of the solidified soil

it has a minimal impact on its fluidity. The optimal sequence for adding water reducers is after the flocculants and solidifiers

markedly improving the fluidity of the solidified soil

with a 0.2% dosage proving most effective. The comprehensive application of flocculation

filtration

and solidification processes successfully produces self-compacting flowable solidified soil with a lower porosity.

关键词

Keywords

references

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