超高韧性矿渣-甘蔗渣灰基地聚物复合材料的流变特性研究

doi:10.11896/cldb.24080183

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Abstract Engineered geopolymer composites (EGC) are regarded as ideal materials for the repair and modification of various infrastructures due to their excellent mechanical and erosion-resistant properties. However, the instability of workability significantly limits their promotion and application in the engineering field. Therefore, in this paper, from the composition of EGC raw materials, the effects of key compositional parameters, such as sugarcane bagasse ash, fibers, water-to-cement ratio, and alkali equivalents, on its rheological properties and fluidity were investigated with a view to achieving the evaluation of the construction performance of EGC based on the raw material proportioning parameters. The applicability of the Bingham and Modified Bingham models in fitting the rheological curves of EGC was also analyzed. The results indicate that the Modified Bingham model is more suitable for describing the rheological properties of EGC slurry. Increasing the sugarcane bagasse ash content enhances the plastic viscosity, yield stress, and flowability of the slurry. An increase in fiber content raises both the plastic viscosity and yield stress while reducing flowability. An increase in the water-to-binder ratio decreases the plastic viscosity and increases flowability. An increase in alkali equivalent increases the plastic viscosity, decreases the yield stress, and results in a trend where flowability first increases and then decreases. The relationship between the rheological parameters and flowability of EGC slurry is expressed as D=30.30-0.07τ₀-3.32μ. Additionally, a flowability prediction model for EGC based on raw material composition parameters is established.

Key words： engineered geopolymer composites(EGC) rheology fluidity multifactor model

Published: 25 January 2026 Online: 2026-01-27

CLC number:

TU526

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	Articles by authors
	LI Jing
	JIAO Zhisen
	ZHANG Ling
	HUANG Ying
	CHEN Zheng

Cite this article:

LI Jing,JIAO Zhisen,ZHANG Ling, et al. Rheological Characteristics Study of Ultra-tough Slag-Sugarcane Bagasse Ash Based Geopolymer Composite Materials[J]. Materials Reports, 2026, 40(2): 24080183-7.

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https://www.mater-rep.com/EN/10.11896/cldb.24080183 OR https://www.mater-rep.com/EN/Y2026/V40/I2/24080183

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