Effect of Fluxes on the Performance of Lightweight Ceramsite Prepared by Engineering Muck
WAN Wenhao1, YANG Feihua2, WANG Fazhou1, ZHANG Rihong3, LIU Yunpeng1,*
1 State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China 2 Beijing Building Materials Academy of Sciences Research, Beijing 100000, China 3 Ningbo Zhongchun Hi-Tech Co., Ltd., Ningbo 315000, Zhejiang, China
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.
万文豪, 杨飞华, 王发洲, 张日红, 刘云鹏. 助熔成分对工程渣土烧制轻质陶粒性能的影响[J]. 材料导报, 2023, 37(7): 21120103-6.
WAN Wenhao, YANG Feihua, WANG Fazhou, ZHANG Rihong, LIU Yunpeng. Effect of Fluxes on the Performance of Lightweight Ceramsite Prepared by Engineering Muck. Materials Reports, 2023, 37(7): 21120103-6.
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