Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tailing sand with core-shell structure for concrete and preparation method of tailing sand
The invention provides tailing sand with a core-shell structure for concrete and a preparation method thereof, and the tailing sand is prepared from the following raw materials in parts by weight: 5 parts of tailing mud, 0.3-2 parts of a water-soluble long straight chain type ultra-high molecular polymer, 0.2-1 part of a macromolecular emulsion, 0.02-0.5 part of macromolecular water-absorbent resin, 0.01-0.1 part of a cross-linking agent and 0.25-2 parts of Portland cement, and 0.25 to 0.5 part of rapid hardening cement. Compared with river sand and machine-made sand, the tailing sand with the core-shell structure for the concrete has the advantages that the grain shape is excellent (spherical), the workability of the concrete is improved under the rolling effect, and the mixing amount of water and additives is reduced.
本发明提供了一种混凝土用具有核壳结构的尾矿砂及其制备方法，该尾矿砂由包括如下重量份的原料制成：尾矿泥5份，水溶性长直链型超高分子聚合物0.3‑2份，高分子乳液0.2‑1份，高分子吸水树脂0.02‑0.5份，交联剂0.01‑0.1份，硅酸盐水泥0.25‑2份，快硬性水泥0.25‑0.5份。本发明所述的混凝土用具有核壳结构的尾矿砂相比河砂与机制砂粒形优异（为球形），滚动效应下提高混凝土工作性，降低水与外加剂掺量。
Tailing sand with core-shell structure for concrete and preparation method of tailing sand
The invention provides tailing sand with a core-shell structure for concrete and a preparation method thereof, and the tailing sand is prepared from the following raw materials in parts by weight: 5 parts of tailing mud, 0.3-2 parts of a water-soluble long straight chain type ultra-high molecular polymer, 0.2-1 part of a macromolecular emulsion, 0.02-0.5 part of macromolecular water-absorbent resin, 0.01-0.1 part of a cross-linking agent and 0.25-2 parts of Portland cement, and 0.25 to 0.5 part of rapid hardening cement. Compared with river sand and machine-made sand, the tailing sand with the core-shell structure for the concrete has the advantages that the grain shape is excellent (spherical), the workability of the concrete is improved under the rolling effect, and the mixing amount of water and additives is reduced.
本发明提供了一种混凝土用具有核壳结构的尾矿砂及其制备方法，该尾矿砂由包括如下重量份的原料制成：尾矿泥5份，水溶性长直链型超高分子聚合物0.3‑2份，高分子乳液0.2‑1份，高分子吸水树脂0.02‑0.5份，交联剂0.01‑0.1份，硅酸盐水泥0.25‑2份，快硬性水泥0.25‑0.5份。本发明所述的混凝土用具有核壳结构的尾矿砂相比河砂与机制砂粒形优异（为球形），滚动效应下提高混凝土工作性，降低水与外加剂掺量。
Tailing sand with core-shell structure for concrete and preparation method of tailing sand
一种混凝土用具有核壳结构的尾矿砂及其制备方法
WANG XUEMIN (Autor:in) / DU YUANBO (Autor:in) / LIU WEI (Autor:in) / YANG XUECHAO (Autor:in) / FAN WEI (Autor:in) / WU ZHIGANG (Autor:in)
28.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Preparation method of tailing sand and artificial sand composite concrete
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2022