Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tungsten tailing-based composite admixture for concrete and preparation method thereof
The invention provides a tungsten tailing-based composite admixture for concrete, which is prepared from the following raw materials in parts by weight: 10-15 parts of limestone chippings, 10-15 partsof fly ash, 10-15 parts of slag powder, 60-70 parts of tungsten tailings and 0.05 parts of an excitation modification material, wherein the excitation modification material is further prepared from the following components in percentage by mass: 25%-35% of triethanolamine, 20%-33% of triisopropanolamine and 34%-50% of diethanolisopropanolamine. The invention also provides a method for preparing the tungsten tailing-based composite admixture for concrete. The composite admixture disclosed by the invention can completely replace grade-II fly ash and partially replace grade-S95 mineral powder inconcrete, so that the workability of the concrete is improved, and the strength, durability and long-term stability of the concrete are improved.
本发明提供一种用于混凝土的钨尾矿基复合掺合料，按重量份计，它由以下原料制备而成：石灰石碎屑10‑15份、粉煤灰10‑15份、矿渣粉10‑15份、钨尾矿60‑70份、激发改性材料0.05份；其中，所述的激发改性材料，进一步按质量百分比计，由25%‑35%的三乙醇胺、20%‑33%的三异丙醇胺和34%‑50%的二乙醇单异丙醇胺组成。本发明还提供制备所述用于混凝土的钨尾矿基复合掺合料的方法。本发明的复合掺合料在混凝土中可完全替代Ⅱ级粉煤灰以及部分替代S95级矿粉，改善混凝土的和易性、提高混凝土的强度、耐久性和长期稳定性。
Tungsten tailing-based composite admixture for concrete and preparation method thereof
The invention provides a tungsten tailing-based composite admixture for concrete, which is prepared from the following raw materials in parts by weight: 10-15 parts of limestone chippings, 10-15 partsof fly ash, 10-15 parts of slag powder, 60-70 parts of tungsten tailings and 0.05 parts of an excitation modification material, wherein the excitation modification material is further prepared from the following components in percentage by mass: 25%-35% of triethanolamine, 20%-33% of triisopropanolamine and 34%-50% of diethanolisopropanolamine. The invention also provides a method for preparing the tungsten tailing-based composite admixture for concrete. The composite admixture disclosed by the invention can completely replace grade-II fly ash and partially replace grade-S95 mineral powder inconcrete, so that the workability of the concrete is improved, and the strength, durability and long-term stability of the concrete are improved.
本发明提供一种用于混凝土的钨尾矿基复合掺合料，按重量份计，它由以下原料制备而成：石灰石碎屑10‑15份、粉煤灰10‑15份、矿渣粉10‑15份、钨尾矿60‑70份、激发改性材料0.05份；其中，所述的激发改性材料，进一步按质量百分比计，由25%‑35%的三乙醇胺、20%‑33%的三异丙醇胺和34%‑50%的二乙醇单异丙醇胺组成。本发明还提供制备所述用于混凝土的钨尾矿基复合掺合料的方法。本发明的复合掺合料在混凝土中可完全替代Ⅱ级粉煤灰以及部分替代S95级矿粉，改善混凝土的和易性、提高混凝土的强度、耐久性和长期稳定性。
Tungsten tailing-based composite admixture for concrete and preparation method thereof
一种混凝土用钨尾矿基复合掺合料及其制备方法
HONG YISU (Autor:in) / HUANG GUOPING (Autor:in) / ZHANG JIANQIANG (Autor:in) / CHAI TIANHONG (Autor:in) / JIANG JIANSONG (Autor:in) / ZENG SHENGHUA (Autor:in)
19.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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