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A platform for research: civil engineering, architecture and urbanism
Preparation and construction process of copper tailing slag road material
The invention discloses a copper tailing slag road material preparation and construction technology, and relates to the technical field of road engineering, the copper tailing slag road material comprises 92-97 wt% of copper tailing slag and 3-8 wt% of a low-carbon gel material; the total content of CaO, SiO2, Al2O3 and MgO compounds in the copper tailings is greater than or equal to 70%, the water content is less than or equal to 14%, the ignition loss is less than or equal to 20%, and the SO3 content is less than or equal to 3.0%; the low-carbon gel material is prepared from 80 to 85 weight percent of superfine slag powder and steel slag powder, 8 to 12 weight percent of gypsum powder, 6.5 to 10.5 weight percent of alkaline excitation material and 0.5 to 0.8 weight percent of additive. The preparation method of the copper tailing slag-based road material comprises the following steps: S1, preparing a low-carbon gel material; s2, preparing copper tailings; s3, preparing the road material. By designing the proportion of the copper tailing slag and the low-carbon gel material and screening out the better copper tailing slag and the low-carbon gel material matched with the copper tailing slag, the three-day unconfined compressive strength of the material can be comparable with the seven-day strength of traditional cement stabilized macadam, the later procedure construction can be advanced by 4 days compared with cement stabilized macadam, and the construction period is greatly shortened.
本申请公开了一种铜尾矿渣道路材料制备及施工工艺，涉及道路工程技术领域，包括铜尾矿渣92～97wt％以及低碳凝胶材料3～8wt％；所述铜尾矿渣中CaO、SiO2、Al2O3、MgO化合物总含量≥70％，含水率≤14％，烧失量≤20％，SO3含量≤3.0％；所述低碳凝胶材料包括矿渣微粉与钢渣粉80～85wt％，石膏粉8～12wt％、碱性激发材料6.5～10.5wt％以及外加剂0.5～0.8wt％。铜尾矿渣基道路材料的制备方法，包括以下步骤：S1、低碳凝胶材料制备；S2、铜尾矿渣制备；S3、道路材料制备。本申请通过设计铜尾矿渣与低碳凝胶材料的占比，并筛选出较优的铜尾矿渣以及与之适配的低碳凝胶材料，该材料3天无侧限抗压强度可媲美传统水泥稳定碎石7天强度，后工序施工相比水泥稳定碎石可提前4天，大大缩短其工期。
Preparation and construction process of copper tailing slag road material
The invention discloses a copper tailing slag road material preparation and construction technology, and relates to the technical field of road engineering, the copper tailing slag road material comprises 92-97 wt% of copper tailing slag and 3-8 wt% of a low-carbon gel material; the total content of CaO, SiO2, Al2O3 and MgO compounds in the copper tailings is greater than or equal to 70%, the water content is less than or equal to 14%, the ignition loss is less than or equal to 20%, and the SO3 content is less than or equal to 3.0%; the low-carbon gel material is prepared from 80 to 85 weight percent of superfine slag powder and steel slag powder, 8 to 12 weight percent of gypsum powder, 6.5 to 10.5 weight percent of alkaline excitation material and 0.5 to 0.8 weight percent of additive. The preparation method of the copper tailing slag-based road material comprises the following steps: S1, preparing a low-carbon gel material; s2, preparing copper tailings; s3, preparing the road material. By designing the proportion of the copper tailing slag and the low-carbon gel material and screening out the better copper tailing slag and the low-carbon gel material matched with the copper tailing slag, the three-day unconfined compressive strength of the material can be comparable with the seven-day strength of traditional cement stabilized macadam, the later procedure construction can be advanced by 4 days compared with cement stabilized macadam, and the construction period is greatly shortened.
本申请公开了一种铜尾矿渣道路材料制备及施工工艺，涉及道路工程技术领域，包括铜尾矿渣92～97wt％以及低碳凝胶材料3～8wt％；所述铜尾矿渣中CaO、SiO2、Al2O3、MgO化合物总含量≥70％，含水率≤14％，烧失量≤20％，SO3含量≤3.0％；所述低碳凝胶材料包括矿渣微粉与钢渣粉80～85wt％，石膏粉8～12wt％、碱性激发材料6.5～10.5wt％以及外加剂0.5～0.8wt％。铜尾矿渣基道路材料的制备方法，包括以下步骤：S1、低碳凝胶材料制备；S2、铜尾矿渣制备；S3、道路材料制备。本申请通过设计铜尾矿渣与低碳凝胶材料的占比，并筛选出较优的铜尾矿渣以及与之适配的低碳凝胶材料，该材料3天无侧限抗压强度可媲美传统水泥稳定碎石7天强度，后工序施工相比水泥稳定碎石可提前4天，大大缩短其工期。
Preparation and construction process of copper tailing slag road material
一种铜尾矿渣道路材料制备及施工工艺
ZHU LEI (author) / WANG LEI (author) / GONG RUICHEN (author) / WANG SHULING (author) / ZHANG DAHAI (author) / WANG WEI (author) / XIONG QIUYUE (author) / XIE WANGJIAN (author) / DING JIAN (author) / ZHONG YUQUN (author)
2024-09-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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