水热处理废弃咖啡渣对混凝土性能的影响及其机理研究

doi:10.11896/cldb.24110107

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Abstract Aiming at the problems of high energy consumption and complex process of spent coffee grounds (SCG) recycling and pyrolysis, selected to prepare spent coffee grounds hydrothermal carbon (SCG-HTC) was prepared through low-temperature hydrothermal treatment of SCG, and was applied to concrete. The effect of SCG-HTC on the performance of concrete was revealed by studying the effect of hydrothermal treatment on the properties of SCG-HTC. The results showed that hydrothermal treatment can change the morphology of SCG particles, enrich the pore structure, and have no hindrance to cement hydration. Compared with the performance changes of SCG concrete, the working, mechanical and thermal insulation properties of SCG-HTC concrete are improved more obviously. Considering the working, mechanical and thermal insulation performance of SCG-HTC concrete, the suggested optimal content of SCG-HTC in concrete is 10vol%.

Key words： spent coffee grounds mechanical performance microstructure thermal insulation performance modification mechanism

Published: 25 December 2025 Online: 2025-12-17

CLC number:

TU502

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	Articles by authors
	SHAO Jie
	CHEN Zheng
	LIU Shujie
	LUO Shujian

Cite this article:

SHAO Jie,CHEN Zheng,LIU Shujie, et al. Study on Influence of Hydrothermally Treated Spent Coffee Grounds on Performance of Concrete and Its Mechanism[J]. Materials Reports, 2025, 39(24): 24110107-7.

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https://www.mater-rep.com/EN/10.11896/cldb.24110107 OR https://www.mater-rep.com/EN/Y2025/V39/I24/24110107

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