助熔成分对工程渣土烧制轻质陶粒性能的影响

doi:10.11896/cldb.21120103

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Abstract Currently, lightweight aggregate(LWA) is mainly designed empirically based on the Riley scheme. Due to the complex composition of different solid waste, the proportioning design of ceramsite based on Riley triangle occasionally shows inapplicability. Therefore, it is necessary to study the influence of different flux on the performance of LWA.
In this study, the compositions of the raw materials with different fluxes were designed in similar locations in Riley triangle. Different fluxes had different effects on the sintering and swelling properties, physical properties, and crystal phase composition of LWA. The effects of four flux type and dosages on the swelling behavior, physical properties and crystal phase composition of the LWA were studied, while conclusively bridging them. The results showed that with MgO, CaO and Na₂CO₃ content of 1wt%, 1.5wt% and 2wt%, the apparent density of obtained LWA was 1.38 g/cm³, 1.06 g/cm³ and 0.96 g/cm³, and the strength was 9.8 MPa, 3.9 MPa and 4.9 MPa, respectively. Further research showed that the difference came from the effects of different flux components on crystal phase composition and liquid phase properties. This work can provide some reference for the proportioning design of ceramsite from solid waste.

Key words： LWA performance calcination regime industrial solid waste ceramsite flux

Published: 10 April 2023 Online: 2023-04-07

CLC number:

X705

Fund:National Key Research Development Program (2018YFE0106300),Open Fund of the State Key Laboratory of Solid Waste Resource Utilization and Energy-Saving Building Materials (20191h0592),and Ningbo Science and Technology Innovation 2025 Major Project (20191ZDYF020159).

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	Articles by authors
	WAN Wenhao
	YANG Feihua
	WANG Fazhou
	ZHANG Rihong
	LIU Yunpeng

Cite this article:

WAN Wenhao,YANG Feihua,WANG Fazhou, et al. Effect of Fluxes on the Performance of Lightweight Ceramsite Prepared by Engineering Muck[J]. Materials Reports, 2023, 37(7): 21120103-6.

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http://www.mater-rep.com/EN/10.11896/cldb.21120103 OR http://www.mater-rep.com/EN/Y2023/V37/I7/21120103

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