Rheological characteristics of cement-sodium silicate grout in its fluid–solid phase transition process

Zhang, Lianzhen; Xu, Han; Zhang, Qingsong; Chu, Ying‐Hao; Liu, Jun

doi:10.1016/j.conbuildmat.2022.129443

Cited by 10 publications

(3 citation statements)

References 33 publications

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“…Through multiple experiments at different shear rates, the shear stress and shear rate relationship curves at different times are ultimately obtained. 38 The specific experimental steps are as follows:…”

Section: Rheological Testmentioning

confidence: 99%

Experimental study on the rheological behavior of superfine cement–sodium silicate slurry under seawater intrusion

Shao,

Zhu,

Gong

et al. 2024

Physics of Fluids

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Grouting is the effective method to prevent water inrush and reinforce fractured surrounding rocks in the construction of the submarine tunnel. The seawater intrusion will lead to obvious changes in the rheological properties of slurries, which can be adverse for the diffusion properties of slurries. This study aimed to identify the impact of seawater intrusion on the constitutive relationship of superfine cement–sodium silicate slurry (SC-S slurry). The chemical gelling time, viscosity, and rheological model of the slurry were studied. The concentrations of seawater ranged from 0% to 100%. The water–cement ratio ranged from 0.6 to 2.0. This study revealed that seawater significantly shortened the chemical gelling time of the slurry. The effect was more pronounced as the concentration of seawater increases. Furthermore, it was observed the rheological model of SC-S slurry will change from Bingham model to Herschel–Bulkley model with the increase in concentration of seawater. Rheological parameters that vary with time were also studied. The rheological constitutive models of slurry under seawater intrusion were established.

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Section: Rheological Testmentioning

confidence: 99%

Experimental study on the rheological behavior of superfine cement–sodium silicate slurry under seawater intrusion

Shao,

Zhu,

Gong

et al. 2024

Physics of Fluids

View full text Add to dashboard Cite

show abstract

“…It acts as an effective accelerator to prevent the cement slurry from dilution and displace during injection 15 . Its exceptional anti‐washout performance, quick‐setting capability, and high early‐stage strength make the cement‐sodium silicate double slurry an ideal choice for geological reinforcement and dynamic water plugging in underground projects 16–18 . However, calcium silicate produced by the double slurry is unstable and easily degraded due to water loss 19 .…”

Section: Introductionmentioning

confidence: 99%

“…15 Its exceptional anti-washout performance, quick-setting capability, and high early-stage strength make the cement-sodium silicate double slurry an ideal choice for geological reinforcement and dynamic water plugging in underground projects. [16][17][18] However, calcium silicate produced by the double slurry is unstable and easily degraded due to water loss. 19 In this aspect, organic grouting materials show better adaptability due to their tunable mechanical properties and chemical inertness after hardening.…”

mentioning

confidence: 99%

Fabrication of high‐performance acrylate grouting materials from tailor made magnesium acrylate solutions

Wei,

Zhu,

et al. 2024

J of Applied Polymer Sci

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Acrylate grouting (AG) material is a low‐viscosity aqueous solution capable of forming an elastic water‐plugging gel after being injected into seepage cracks. This study highlights the fabrication and performance of AG materials, specifically emphasizing the use of magnesium acrylate (MgDA) as the principal precursor for the polymer gel network. Additionally, 2‐(dimethylamino)ethyl methacrylate (DMAEMA) serves as a bifunction crosslinker and accelerator, while sodium persulfate and potassium ferricyanide act as initiator and retarder, respectively. AG materials are made of these four key ingredients mixed in an aqueous solution, and then polymerized into a highly elastic water‐plugging gel. Our systematic investigation indicated that the MgDA and DMAEMA concentrations significantly influence the performance of the AG material. The optimized AG material formulation containing 24% MgDA and 1.4% DMAEMA, exhibited an elongation at break of 1040%, a water absorption of 67% and a compressive strength of 363 kPa in grouted sand. The gel time could be adjusted from under 20 s to more than 20 min, offering versatility to meet various application requirements. Beyond its good bonding performance and superior extrusion resistance, the AG materials displayed excellent water‐plugging effect. Impressively, even after extending the closed water test to 360 days, the gel displayed no significant change in color or signs of degradation, and the treated crack remained in a deep dry state with no evidence of leakage, confirming the AG material's superior durability. With its advantageous permeability and excellent water‐plugging effect, the AG material is well‐suited for applications in micro‐crack sealing, seepage prevention and stratum reinforcement grouting.

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Properties of cement grout doped with xanthan gum and welan gum at high hydration temperatures

Li,

Wang,

Liu

et al. 2024

Construction and Building Materials

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Rheological characteristics of cement-sodium silicate grout in its fluid–solid phase transition process

Cited by 10 publications

References 33 publications

Experimental study on the rheological behavior of superfine cement–sodium silicate slurry under seawater intrusion

Experimental study on the rheological behavior of superfine cement–sodium silicate slurry under seawater intrusion

Fabrication of high‐performance acrylate grouting materials from tailor made magnesium acrylate solutions

Properties of cement grout doped with xanthan gum and welan gum at high hydration temperatures

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