Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Solid waste-based underground filling material and preparation method thereof
The invention provides a solid waste-based underground filling material and a preparation method thereof. The preparation method comprises the following steps: A) performing impurity removal and screening pretreatment on CFB fly ash to obtain pretreated CFB fly ash A; b) activating the gasified slag to obtain activated gasified slag; carrying out decarburization treatment on the activated gasified slag to obtain activated gasified slag micro powder B; c) mixing the pretreated CFB fly ash A obtained in the step A), the active gasified slag micro powder B obtained in the step B), a composite exciting agent, a composite water reducing agent and a composite thickening agent to obtain active gelling powder C; d) mixing the coarse gasified slag and the fine gasified slag to obtain a gasified slag mixed slag aggregate D; and E) mixing the active gelling powder C, the gasified slag mixed slag aggregate D and water to obtain the solid waste-based underground filling material. Wherein the step A) and the step B) are not limited in sequence, and the step C) and the step D) are not limited in sequence. Waste utilization can be achieved, and the performance requirement of the underground filling material can be met.
本发明提供了一种固废基井下充填材料及其制备方法。本发明制备方法包括：A)对CFB飞灰进行除杂和筛选预处理，得到预处理CFB飞灰A；B)对气化渣进行活化处理，得到活化气化渣；再对所述活化气化渣进行脱碳处理，得到活性气化渣微粉B；C)将步骤A)所得预处理CFB飞灰A、步骤B)所得活性气化渣微粉B、复合激发剂、复合减水剂和复合增稠剂混合，得到活性胶凝粉体C；D)将气化渣粗渣和气化渣细渣混合，得到气化渣混合渣骨料D；E)将所述活性胶凝粉体C、气化渣混合渣骨料D和水混合，得到固废基井下充填材料；其中，步骤A)和B)没有顺序限制，步骤C)和D)没有顺序限制。本发明可实现废物利用且满足井下充填材料性能要求。
Solid waste-based underground filling material and preparation method thereof
The invention provides a solid waste-based underground filling material and a preparation method thereof. The preparation method comprises the following steps: A) performing impurity removal and screening pretreatment on CFB fly ash to obtain pretreated CFB fly ash A; b) activating the gasified slag to obtain activated gasified slag; carrying out decarburization treatment on the activated gasified slag to obtain activated gasified slag micro powder B; c) mixing the pretreated CFB fly ash A obtained in the step A), the active gasified slag micro powder B obtained in the step B), a composite exciting agent, a composite water reducing agent and a composite thickening agent to obtain active gelling powder C; d) mixing the coarse gasified slag and the fine gasified slag to obtain a gasified slag mixed slag aggregate D; and E) mixing the active gelling powder C, the gasified slag mixed slag aggregate D and water to obtain the solid waste-based underground filling material. Wherein the step A) and the step B) are not limited in sequence, and the step C) and the step D) are not limited in sequence. Waste utilization can be achieved, and the performance requirement of the underground filling material can be met.
本发明提供了一种固废基井下充填材料及其制备方法。本发明制备方法包括：A)对CFB飞灰进行除杂和筛选预处理，得到预处理CFB飞灰A；B)对气化渣进行活化处理，得到活化气化渣；再对所述活化气化渣进行脱碳处理，得到活性气化渣微粉B；C)将步骤A)所得预处理CFB飞灰A、步骤B)所得活性气化渣微粉B、复合激发剂、复合减水剂和复合增稠剂混合，得到活性胶凝粉体C；D)将气化渣粗渣和气化渣细渣混合，得到气化渣混合渣骨料D；E)将所述活性胶凝粉体C、气化渣混合渣骨料D和水混合，得到固废基井下充填材料；其中，步骤A)和B)没有顺序限制，步骤C)和D)没有顺序限制。本发明可实现废物利用且满足井下充填材料性能要求。
Solid waste-based underground filling material and preparation method thereof
一种固废基井下充填材料及其制备方法
WANG CHAO (Autor:in) / YU WENCHAO (Autor:in) / SONG RUILING (Autor:in) / ZHANG HENG (Autor:in)
09.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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