Penetrability prediction of microfine cement grout in granular soil using Artificial Intelligence techniques

Mozumder, Ruhul Amin; Laskar, Aminul Islam; Hussain, Monowar

doi:10.1016/j.tust.2017.11.023

Cited by 55 publications

(13 citation statements)

References 25 publications

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“…However, it is difficult to inject ordinary Portland cement slurries into fine sand or microfractures [ 5 ]. In recent years, ultrafine cement (UC) slurry has been rapidly developed and is widely used to prevent the water seepage problem in underground engineering [ 6 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Multi-Response Optimization of Ultrafine Cement-Based Slurry Using the Taguchi-Grey Relational Analysis Method

Zhang

Qiao

et al. 2020

Materials

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The grouting technique is an important method in underground engineering that prevents water seepage and reinforces fractured rock mass. In this research, ultrafine cement-based grouting material, including ultrafine cement (UC), ultrafine fly ash (UFA), polycarboxylate superplasticizer (SP), colloidal nanosilica (CNS), sodium sulfate solution (SS) and water, was developed. The flow time, viscosity, bleeding, setting time and uniaxial compressive strength of the UC-based slurry were measured by orthogonal experiments, and the optimal mix proportion of the UC-based slurry was obtained based on the Taguchi-Grey relational analysis method. Microstructure analysis of the UC-based slurry was conducted using scanning electron microscopy (SEM) and mercury intrusion porosimetry (MIP) tests. The results showed that the Bingham model could provide a satisfactory description of the rheological properties of the UC-based slurry. The addition of CNS and SS could promote the hydration of the UC-based slurry and improve the microstructure of the hardened slurry, thereby increasing the strength of the hardened slurry. The optimum ratio for the UC-based slurry was water/solid (W/S) ratio of 1.0, and the contents of UFA, SP, CNS and SS by mass of UC were 40%, 0.2%, 4% and 4%, respectively.

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Section: Introductionmentioning

confidence: 99%

Multi-Response Optimization of Ultrafine Cement-Based Slurry Using the Taguchi-Grey Relational Analysis Method

Zhang

Qiao

et al. 2020

Materials

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“…According to previous studies on injectability of sand layers (Zhang [20], Mozumder et al [16], and Markou et al [21]), coarse sand and coarse-medium coarse sand have good injectability in which cement slurry can diffuse with the permeation mode. In this paper, coarse sand (particle size 1.25∼2.5 mm) and coarse-medium coarse sand (particle size 0.63∼2.5 mm) are used in test, whose basic physical parameters are shown in Table 2.…”

Section: Experimental Materialsmentioning

confidence: 99%

“…Water-cement ratio has evident influence on slurry properties. Mozumder et al [16] studied yield stress and plastic viscosity of microfine cement slurry at different water-cement ratios and came to the conclusion that yield stress and plastic viscosity are negative-correlated with water-cement ratio. Rahman et al [17] analyzed influence of water-cement ratio and hydration time on rheological parameters using self-manufactured setup, resulting that yield stress increases with water-cement ratio decreasing and hydration time increasing.…”

Section: Introductionmentioning

confidence: 99%

Research on Influence of Water‐Cement Ratio on Reinforcement Effect for Permeation Grouting in Sand Layer

Zhang

Chu

et al. 2020

Advances in Materials Science and Engineering

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In order to study permeation grouting reinforcement effect in the sand layer, a set of grouting test device is developed, which consists of a power device, a pressure-bearing slurry tank, and several test frames. Compressive strength, deformation modulus, and permeability coefficient are selected to be the evaluation index of grouting reinforcement effect. Grouting reinforcement effect under different water-cement ratio of cement slurry and curing time were measured. Eventually, under laboratory conditions, fitting formulas have been obtained which describe the quantitative relationship between reinforcement effect of permeation grouting and water-cement ratio and curing time. Results show that water-cement ratio of slurry has obvious effect on grouting reinforcement effect. Mechanical performance and impermeability of the grouted body are negative-correlated with water-cement ratio. There are two different destruction patterns for the grouted body in uniaxial compression process: global destruction pattern at low water-cement ratio and local destruction pattern at high water-cement ratio. If cement slurry at high water-cement ratio is permeated into the sand layer, water bleeding phenomena will appear and lead to inhomogeneous performance of the grouted body, with lower performance in the upper part and higher performance in the lower part of the grouted body.

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“…In 2018, ref. [13] used artificial intelligence models trained with laboratory tests of microcement grouting as a predictive tool. Again, the extrapolation of results to a real scale (sample size and stress state) is the weak point of this work.…”

Section: Introductionmentioning

confidence: 99%

Designing Cement-Based Grouting in a Rock Mass for Underground Impermeabilization

Escobal-Marcos¹,

Álvarez‐Fernández

Prendes-Gero

et al. 2021

Energies

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Fractured rock masses below the water table are a problem in underground excavations because of their low strength and high permeability. Nowadays, these negative connotations can be reduced with techniques such as injection of cement, microcement, or resins grouts. These materials increase the rock mass cohesion while reducing the flow of water through the discontinuities. This paper describes the work carried out to design a waterproofing screen for a three-storey underground basement located in a building near the Bilbao estuary (Northern Spain) and with problems of water seepage from the river. First, a survey of the rock mass is carried out. This survey shows the presence of highly fractured zones and the variability of the permeability as functions of the fractures. Subsequently, the effect on permeability caused by the injection of cement grouts and microcement is studied by means of two pilot injection boreholes and eight control boreholes. Finally, a behavioural model is proposed to explain the heterogeneity observed in the radius of influence of the injection. As a result, a waterproofing screen with three types of treatment is designed: An ordinary treatment with cement grouts, an intensive treatment with microcement grouts, and an isolation treatment with cement-bentonite grouts.

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Penetrability prediction of microfine cement grout in granular soil using Artificial Intelligence techniques

Cited by 55 publications

References 25 publications

Multi-Response Optimization of Ultrafine Cement-Based Slurry Using the Taguchi-Grey Relational Analysis Method

Multi-Response Optimization of Ultrafine Cement-Based Slurry Using the Taguchi-Grey Relational Analysis Method

Research on Influence of Water‐Cement Ratio on Reinforcement Effect for Permeation Grouting in Sand Layer

Designing Cement-Based Grouting in a Rock Mass for Underground Impermeabilization

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