Micro-Level Analysis of Marine Clay Stabilised with Polyurethane

Saleh, Samaila; Yunus, Nor Zurairahetty Mohd; Ahmad, Khursheed; Ali, Nazri; Marto, Aminaton

doi:10.1007/s12205-020-1797-0

Cited by 14 publications

(6 citation statements)

References 38 publications

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“…(2018) Calcium carbide residue 286 1900 Latifi and Meahen (2017) 90 9% Silica fumes 48.98 198.65 37 120 7 11 Expansive soil Singh et al. (2020) 40%–60% CaCl 2 49.5 311.8 Krishna and Ramesh (2012) Polyurethane 125 216 Saleh et al. (2020) Polyurethane 39.43 50.94 0.11 0.87 7.82 8.46 1:1 sand cyay mix Liu et al.…”

Section: Discussion and Future Scope Of Researchmentioning

confidence: 99%

“…(2012) 5% Polyurethane 0/difficult to make sample 131.87 4.32 36 30.12 34.56 Sand Liu et al (2019a) 30% Polyurethane 75 250 Marine clay Saleh et al. (2018) 5% Polyurethane 66 145 Marine clay Saleh et al. (2020) 3 6% Lignosulfonate 120 130 Sezer et al.…”

Section: Discussion and Future Scope Of Researchmentioning

confidence: 99%

“…This is due to a reduction in viscosity of PU, which makes it occupy more empty spaces of the void. Saleh et al (2020) studied PU-treated marine clay, and its microstructural analysis showed no pozzolanic reaction or no new compound was formed. The untreated particle had a fuzzy arrangement with cusp like crystal, and after treatment with 8% PU, the size of the particle decreases, which increase the density of soil and led to an increase in shear strength and reduction in axial strain.…”

Section: Ground Improvement Using Polyurethanementioning

confidence: 98%

“…This is due to a reduction in viscosity of PU, which makes it occupy more empty spaces of the void. Saleh et al. (2020) studied PU-treated marine clay, and its microstructural analysis showed no pozzolanic reaction or no new compound was formed.…”

Section: Ground Improvement Using Chemical Stabilisersmentioning

confidence: 98%

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Ground improvement using chemical methods: A review

Verma

Ray

Rai

et al. 2021

Heliyon

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Ground improvement will be critically important in the present and future geotechnical practice for designing the structures in weak soil. This paper presents a review of the recent development in ground improvement techniques, especially chemical stabilisers. Various available chemical stabilisers are identified and compared with other available methods. Though the use of chemicals provides an excellent alternative to the traditional methods, they still lack proper understanding regarding their use, handling, application, and long-term effect on the environment. Various chemical stabilisers and their applicability conditions are summarised in the present paper. Insight of biochemical, electrochemical, inorganic, and organic stabilisers is presented with future scope of these methods along with the potential areas where a lot of efforts is needed to industrialise these methods are also discussed briefly. A need for developing a more environmentally friendly and safe method was felt while reviewing these methods. Lack of a large amount of data is a major concern for lesser use of these methods industrially. A lot of laboratory and field experiments should be conducted in different conditions to ensure safe results from chemical stabilisers.

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Section: Discussion and Future Scope Of Researchmentioning

confidence: 99%

Section: Discussion and Future Scope Of Researchmentioning

confidence: 99%

Section: Ground Improvement Using Polyurethanementioning

confidence: 98%

Section: Ground Improvement Using Chemical Stabilisersmentioning

confidence: 98%

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Ground improvement using chemical methods: A review

Verma

Ray

Rai

et al. 2021

Heliyon

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“…Polyurethane grouting is widely applied in highways, housing construction, and underground engineering. Polyurethane grouting materials have been investigated experimentally and/or theoretically from many aspects, including material synthesis and modification [21][22][23], mechanical and macroscopic properties [24][25][26][27][28], the evolution mechanism of macro-mechanical properties and microstructure characteristics [29][30][31][32], and the diffusion mechanism and expansion characteristics of polymer grout [33][34][35][36][37]. However, existing studies have mainly focused on the engineering backgrounds of water conservation, structure lifting, and foundation treatment and reinforcement.…”

Section: Introductionmentioning

confidence: 99%

Polyurethane grouting materials with different compositions for the treatment of mud pumping in ballastless track subgrade beds: properties and application effect

Huang

et al. 2022

Rail. Eng. Science

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Mud pumping in subgrade beds under ballastless tracks will deteriorate the dynamic performance of infrastructure under railway lines, reduce the smoothness of the railway lines, and seriously affect the comfort and safety of the trains. Due to their good mechanical properties, two-component polyurethane materials can be used for grouting to treat the fouling problems caused by ballastless track mud pumping. To develop a polyurethane formula suitable for the treatment of ballastless track mud pumping, we first performed indoor experiments to investigate the mechanical properties and gelation time of polyurethane elastomers synthesized with different raw material composition ratios, to determine an optimal composition ratio of the raw materials. Then, we conducted a dynamic field test to verify the remediation effect of the polyurethane material fabricated according to the design ratio. The results showed that polyurethane grouting material with the selected design ratios improved the contact characteristics between the surface layer of the subgrade bed and the base plate in the area, coordinating the dynamic response between the track structure and the subgrade bed. Thus, the obtained polyurethane grouting material could be used to renovate mud pumping areas of ballastless tracks with a good treatment effect.

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