Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mine underground filling mortar
The invention belongs to the technical field of building materials, and particularly relates to mine underground filling mortar which comprises a cementing material, water and fine aggregate in a massratio of 1: (2.0-2.6): (4-10). The cementing material comprises the following components in parts by weight: 14-27 parts of iron tailing powder, 45-62 parts of superfine slag powder, 12-24 parts of quick lime and 3-12 parts of desulfurized fly ash. The fine aggregate is all-iron tailing sand, and the particle size of the all-iron tailing sand is 0.15-2.36 mm. The activity and potential hydraulicity of the iron tailing powder and the superfine slag powder are utilized; relatively high coagulability and hardness are realized; quick lime is used for providing an alkaline environment for slag hydrolysis, so that an acid film layer and an irregular chemical chain structure on the surface of the slag can be destroyed, and ideal cementitious materials are prepared; and meanwhile, the iron tailing sand with relatively hard performance is solidified to prepare the mortar, and the mortar has good fluidity within a certain period of time, so that pipeline transportation in engineering application can be realized.
本发明属于建筑材料技术领域，具体为一种矿山井下充填砂浆，包括胶凝材料、水和细骨料，各组分质量比为1：2.0‑2.6：4‑10；胶凝材料包括铁尾矿粉、矿渣微粉、生石灰和脱硫灰，各组分重量份为：铁尾矿粉14‑27份，矿渣微粉45‑62份，生石灰12‑24份，脱硫灰3‑12份；细骨料为全铁尾矿砂，全铁尾矿砂的粒径为0.15mm‑2.36mm。本发明利用铁尾矿粉和矿渣微粉自身的活性和“潜在水硬性”，实现较强的凝结性和硬度，并且利用生石灰提供矿渣水解的碱性环境能够破坏矿渣表面的酸性薄膜层和不规则的化学锁链结构，从而制备理想的胶凝材料，同时固结自身具有较硬性能的铁尾矿砂制备砂浆，此砂浆在一定的时间内具有良好的流动性，可实现工程运用中的管道输送。
Mine underground filling mortar
The invention belongs to the technical field of building materials, and particularly relates to mine underground filling mortar which comprises a cementing material, water and fine aggregate in a massratio of 1: (2.0-2.6): (4-10). The cementing material comprises the following components in parts by weight: 14-27 parts of iron tailing powder, 45-62 parts of superfine slag powder, 12-24 parts of quick lime and 3-12 parts of desulfurized fly ash. The fine aggregate is all-iron tailing sand, and the particle size of the all-iron tailing sand is 0.15-2.36 mm. The activity and potential hydraulicity of the iron tailing powder and the superfine slag powder are utilized; relatively high coagulability and hardness are realized; quick lime is used for providing an alkaline environment for slag hydrolysis, so that an acid film layer and an irregular chemical chain structure on the surface of the slag can be destroyed, and ideal cementitious materials are prepared; and meanwhile, the iron tailing sand with relatively hard performance is solidified to prepare the mortar, and the mortar has good fluidity within a certain period of time, so that pipeline transportation in engineering application can be realized.
本发明属于建筑材料技术领域，具体为一种矿山井下充填砂浆，包括胶凝材料、水和细骨料，各组分质量比为1：2.0‑2.6：4‑10；胶凝材料包括铁尾矿粉、矿渣微粉、生石灰和脱硫灰，各组分重量份为：铁尾矿粉14‑27份，矿渣微粉45‑62份，生石灰12‑24份，脱硫灰3‑12份；细骨料为全铁尾矿砂，全铁尾矿砂的粒径为0.15mm‑2.36mm。本发明利用铁尾矿粉和矿渣微粉自身的活性和“潜在水硬性”，实现较强的凝结性和硬度，并且利用生石灰提供矿渣水解的碱性环境能够破坏矿渣表面的酸性薄膜层和不规则的化学锁链结构，从而制备理想的胶凝材料，同时固结自身具有较硬性能的铁尾矿砂制备砂浆，此砂浆在一定的时间内具有良好的流动性，可实现工程运用中的管道输送。
Mine underground filling mortar
一种矿山井下充填砂浆
ZHAO LUQING (Autor:in) / YU FENG (Autor:in) / CHEN TAIYAO (Autor:in) / FANG YUAN (Autor:in) / WU PING (Autor:in) / XU SHINAN (Autor:in) / YANG LEI (Autor:in)
26.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Method for fast preparing mine tailing underground filling material
| Europäisches Patentamt | 2015