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February 28, 2026Japanese Geotechnical JournalOpen Access

Evaluation of rheological properties of bentonite suspension in deep-sea mining

Yu KAWAI Shun NOMURA Kazuo TANI Akihiko Suzuki Hiroshi Yabe Akihiro TOMITA T. Ihara

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Key Points

The main aim is to evaluate the rheological properties of a bentonite suspension used in mining transport.
Proposed a carrier material combining bentonite suspension with sand for transport.
Evaluated viscosity properties using a flow test suitable for granular media.
Utilized a bilinear model to relate shear stress and flow velocity in the carrier material.
Confirmed that the bilinear model effectively represents CM viscosity characteristics.
Identified relationships between viscosity parameters and mixtures of carrier material.

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Implication

This research evaluates the transport efficiency of a bentonite-sand carrier material, indicating its potential for deep-sea mining effectiveness.

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Cite This Study

KAWAI et al. (2026) studied this question.

synapsesocial.com/papers/69a67dd6f353c071a6f09d4c https://doi.org/10.3208/jgs.21.21

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