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A platform for research: civil engineering, architecture and urbanism
Molybdenum tailing micro-powder admixture used in mortar or concrete and preparation method of molybdenum tailing micro-powder admixture
The invention discloses a molybdenum tailing micropowder admixture used in mortar or concrete and a preparation method thereof. The molybdenum tailing micropowder admixture comprises molybdenum tailings, triethanolamine accounting for 0.04-0.08% of the mass of the molybdenum tailings, sodium gluconate accounting for 0.1-0.2% of the mass of the molybdenum tailings and a polycarboxylic acid water reducer accounting for 0.05-0.15% of the mass of the molybdenum tailings. The preparation method comprises the following steps: firstly, fully mixing molybdenum tailings with water, then adding triethanolamine, sodium gluconate and a polycarboxylic acid water reducing agent, mixing and ball-milling for 20-30 minutes, and drying to obtain the molybdenum tailing micro-powder admixture. The molybdenum tailings are subjected to a technical method of physical wet grinding and chemical auxiliary grinding, the fineness and dispersity of particles are improved while the ball milling time is greatly shortened, the energy consumption is greatly reduced, and the activity of the molybdenum tailing micro powder serving as an admixture in mortar or concrete is improved due to the reserved chemical auxiliaries.
本发明公开了一种用于砂浆或混凝土中的钼尾矿微粉掺合料及其制备方法，包括钼尾矿、占钼尾矿质量0.04‑0.08％的三乙醇胺、占钼尾矿质量0.1‑0.2％的葡萄糖酸钠和占钼尾矿质量0.05‑0.15％的聚羧酸减水剂；先将钼尾矿和水充分混合，再加入三乙醇胺、葡萄糖酸钠和聚羧酸减水剂，混合球磨20‑30min，干燥后即得钼尾矿微粉掺合料。本发明通过对钼尾矿采用物理湿磨+化学助磨的技术方法，在极大降低球磨时间和能耗的同时提高了颗粒的细度和分散性，而且保留的化学助剂，提高了钼尾矿微粉作为掺合料在砂浆或混凝土中的活性。
Molybdenum tailing micro-powder admixture used in mortar or concrete and preparation method of molybdenum tailing micro-powder admixture
The invention discloses a molybdenum tailing micropowder admixture used in mortar or concrete and a preparation method thereof. The molybdenum tailing micropowder admixture comprises molybdenum tailings, triethanolamine accounting for 0.04-0.08% of the mass of the molybdenum tailings, sodium gluconate accounting for 0.1-0.2% of the mass of the molybdenum tailings and a polycarboxylic acid water reducer accounting for 0.05-0.15% of the mass of the molybdenum tailings. The preparation method comprises the following steps: firstly, fully mixing molybdenum tailings with water, then adding triethanolamine, sodium gluconate and a polycarboxylic acid water reducing agent, mixing and ball-milling for 20-30 minutes, and drying to obtain the molybdenum tailing micro-powder admixture. The molybdenum tailings are subjected to a technical method of physical wet grinding and chemical auxiliary grinding, the fineness and dispersity of particles are improved while the ball milling time is greatly shortened, the energy consumption is greatly reduced, and the activity of the molybdenum tailing micro powder serving as an admixture in mortar or concrete is improved due to the reserved chemical auxiliaries.
本发明公开了一种用于砂浆或混凝土中的钼尾矿微粉掺合料及其制备方法，包括钼尾矿、占钼尾矿质量0.04‑0.08％的三乙醇胺、占钼尾矿质量0.1‑0.2％的葡萄糖酸钠和占钼尾矿质量0.05‑0.15％的聚羧酸减水剂；先将钼尾矿和水充分混合，再加入三乙醇胺、葡萄糖酸钠和聚羧酸减水剂，混合球磨20‑30min，干燥后即得钼尾矿微粉掺合料。本发明通过对钼尾矿采用物理湿磨+化学助磨的技术方法，在极大降低球磨时间和能耗的同时提高了颗粒的细度和分散性，而且保留的化学助剂，提高了钼尾矿微粉作为掺合料在砂浆或混凝土中的活性。
Molybdenum tailing micro-powder admixture used in mortar or concrete and preparation method of molybdenum tailing micro-powder admixture
一种用于砂浆或混凝土中的钼尾矿微粉掺合料及其制备方法
CHEN RONGJIAN (author) / MA KUNLIN (author) / MENG QINGYIN (author) / MENG WEIQI (author) / YANG YING (author) / FAN JIAZHI (author) / PANG ZHENG (author) / SONG YIPING (author) / DU YANXIN (author)
2023-03-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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