Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of phosphate tailing-based cementing material and application of phosphate tailing-based cementing material in stable road base
The invention provides a phosphate tailing-based cementing material which is characterized by comprising the following components in percentage by weight: 75-85% of phosphate tailings, 5-10% of white mud, 3-8% of slag, 2-5% of iron powder, 0.02-0.05% of a macromolecular grinding aid and 2-7% of an active activator. The grinding aid is a macromolecular grinding aid obtained by reacting triethanolamine, triisopropanolamine and maleic anhydride in the presence of toluenesulfonic acid serving as a catalyst and then adding methallyl alcohol polyoxyethylene ether for continuous reaction. The active exciting agent prepared according to a certain proportion can solve the problem that a large amount of hydration heat generated when MgO is hydrated at normal temperature enables water to be changed into water vapor, so that the structure cracks, difficult-to-melt hydration products magnesium oxychloride and magnesium hydroxide colloid are formed, crystal grains are gradually formed through continuous crystallization, and the quality of the magnesium oxychloride and magnesium hydroxide colloid is improved. Phosphorus tailing cementing materials can replace cement to be applied to a road stable layer to harden slurry, and the strength is improved.
本发明提供一种磷尾矿基胶凝材料，其特征在于，按重量百分比计，磷尾矿75%~85%，白泥5%~10%，矿渣3%~8%，铁粉2%~5%，高分子助磨剂0.02%~0.05%，活性激发剂2~7%。所述的助磨剂为三乙醇胺、三异丙醇胺与马来酸酐在甲苯磺酸为催化剂反应后，加入甲基烯丙醇聚氧乙烯醚继续反应得到的高分子助磨剂。按一定比例配制的活性激发剂可以解决MgO常温下水化时产生的大量水化热使水变成水蒸气，导致结构出现裂缝的现象，会形成难熔解的水化产物氧氯化镁和氢氧化镁胶体，通过持续结晶逐渐形成晶粒，有利于磷尾矿胶凝材料代替水泥运用到道路稳定层中使浆体硬化，提高强度。
Preparation method of phosphate tailing-based cementing material and application of phosphate tailing-based cementing material in stable road base
The invention provides a phosphate tailing-based cementing material which is characterized by comprising the following components in percentage by weight: 75-85% of phosphate tailings, 5-10% of white mud, 3-8% of slag, 2-5% of iron powder, 0.02-0.05% of a macromolecular grinding aid and 2-7% of an active activator. The grinding aid is a macromolecular grinding aid obtained by reacting triethanolamine, triisopropanolamine and maleic anhydride in the presence of toluenesulfonic acid serving as a catalyst and then adding methallyl alcohol polyoxyethylene ether for continuous reaction. The active exciting agent prepared according to a certain proportion can solve the problem that a large amount of hydration heat generated when MgO is hydrated at normal temperature enables water to be changed into water vapor, so that the structure cracks, difficult-to-melt hydration products magnesium oxychloride and magnesium hydroxide colloid are formed, crystal grains are gradually formed through continuous crystallization, and the quality of the magnesium oxychloride and magnesium hydroxide colloid is improved. Phosphorus tailing cementing materials can replace cement to be applied to a road stable layer to harden slurry, and the strength is improved.
本发明提供一种磷尾矿基胶凝材料，其特征在于，按重量百分比计，磷尾矿75%~85%，白泥5%~10%，矿渣3%~8%，铁粉2%~5%，高分子助磨剂0.02%~0.05%，活性激发剂2~7%。所述的助磨剂为三乙醇胺、三异丙醇胺与马来酸酐在甲苯磺酸为催化剂反应后，加入甲基烯丙醇聚氧乙烯醚继续反应得到的高分子助磨剂。按一定比例配制的活性激发剂可以解决MgO常温下水化时产生的大量水化热使水变成水蒸气，导致结构出现裂缝的现象，会形成难熔解的水化产物氧氯化镁和氢氧化镁胶体，通过持续结晶逐渐形成晶粒，有利于磷尾矿胶凝材料代替水泥运用到道路稳定层中使浆体硬化，提高强度。
Preparation method of phosphate tailing-based cementing material and application of phosphate tailing-based cementing material in stable road base
磷尾矿基胶凝材料制备方法其在道路稳定基层中应用
HUANG XUQUAN (Autor:in) / QI CHUNBIAO (Autor:in) / ZHAO XIAORONG (Autor:in) / XUE FEI (Autor:in) / LIU LIMING (Autor:in) / WANG ZAIQIAN (Autor:in) / WANG RUTING (Autor:in) / WU QINNAN (Autor:in) / SUN ZHENGHUA (Autor:in)
09.05.2023
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2024
Superfine tailing-based cementing material and preparation method thereof
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2023