Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Shell-wrapped quartz sand tailing-based ceramsite, shell wrapping method and application
The invention discloses a shell-wrapped quartz sand tailing-based ceramsite, a shell wrapping method and application. The shell-wrapped quartz sand tailing-based ceramsite comprises an external shell layer and quartz sand tailing-based ceramsite wrapped by the shell layer, the mass of the shell layer accounts for 10%-30% of the mass of the quartz sand tailing-based ceramsite; the shell layer comprises the following components in percentage by mass: 5%-15% of aluminate cement, 5%-15% of Portland cement, 40%-65% of fly ash and 25%-50% of silica fume. The shell wrapping process comprises the following steps: uniformly mixing and stirring aluminate cement, Portland cement, fly ash and silica fume to obtain a dry mixed shell material; wrapping the surface of the quartz sand tailing-based ceramsite in the saturated surface dry state with the dry mixed shell material; after curing is completed, the coated quartz sand tailing-based ceramsite is obtained. The quartz sand tailing-based ceramsite is applied to concrete as a coarse aggregate, has an activity enhancement effect, and can improve the quality of an interface transition area, so that the mechanical property of the concrete is enhanced.
本发明公开了一种裹壳的石英砂尾矿基陶粒、裹壳方法和应用，裹壳的石英砂尾矿基陶粒包括外部的壳层和被壳层包裹的石英砂尾矿基陶粒；所述壳层质量占所述石英砂尾矿基陶粒的10％～30％；所述壳层以质量百分比计包括铝酸盐水泥5％～15％、硅酸盐水泥5％～15％、粉煤灰40％～65％、硅灰25％～50％。裹壳工艺为：将铝酸盐水泥、硅酸盐水泥、粉煤灰和硅灰混合搅拌均匀获得干混合壳料；将干混合壳料包裹至饱和面干状态的石英砂尾矿基陶粒的表面；养护完成得到裹壳的石英砂尾矿基陶粒。石英砂尾矿基陶粒作为一种粗骨料应用于混凝土中，具有活性增强效应，可提升界面过渡区的质量，从而增强混凝土的力学性能。
Shell-wrapped quartz sand tailing-based ceramsite, shell wrapping method and application
The invention discloses a shell-wrapped quartz sand tailing-based ceramsite, a shell wrapping method and application. The shell-wrapped quartz sand tailing-based ceramsite comprises an external shell layer and quartz sand tailing-based ceramsite wrapped by the shell layer, the mass of the shell layer accounts for 10%-30% of the mass of the quartz sand tailing-based ceramsite; the shell layer comprises the following components in percentage by mass: 5%-15% of aluminate cement, 5%-15% of Portland cement, 40%-65% of fly ash and 25%-50% of silica fume. The shell wrapping process comprises the following steps: uniformly mixing and stirring aluminate cement, Portland cement, fly ash and silica fume to obtain a dry mixed shell material; wrapping the surface of the quartz sand tailing-based ceramsite in the saturated surface dry state with the dry mixed shell material; after curing is completed, the coated quartz sand tailing-based ceramsite is obtained. The quartz sand tailing-based ceramsite is applied to concrete as a coarse aggregate, has an activity enhancement effect, and can improve the quality of an interface transition area, so that the mechanical property of the concrete is enhanced.
本发明公开了一种裹壳的石英砂尾矿基陶粒、裹壳方法和应用，裹壳的石英砂尾矿基陶粒包括外部的壳层和被壳层包裹的石英砂尾矿基陶粒；所述壳层质量占所述石英砂尾矿基陶粒的10％～30％；所述壳层以质量百分比计包括铝酸盐水泥5％～15％、硅酸盐水泥5％～15％、粉煤灰40％～65％、硅灰25％～50％。裹壳工艺为：将铝酸盐水泥、硅酸盐水泥、粉煤灰和硅灰混合搅拌均匀获得干混合壳料；将干混合壳料包裹至饱和面干状态的石英砂尾矿基陶粒的表面；养护完成得到裹壳的石英砂尾矿基陶粒。石英砂尾矿基陶粒作为一种粗骨料应用于混凝土中，具有活性增强效应，可提升界面过渡区的质量，从而增强混凝土的力学性能。
Shell-wrapped quartz sand tailing-based ceramsite, shell wrapping method and application
一种裹壳的石英砂尾矿基陶粒、裹壳方法和应用
WANG DONGYUN (Autor:in) / LU XUESONG (Autor:in) / DONG XU (Autor:in) / XING YUE (Autor:in)
19.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2022
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Tailing sand with core-shell structure for concrete and preparation method of tailing sand
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