Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Physical-chemical combined activation recycling method for regenerated micro powder
The invention discloses a physical-chemical combined activation recycling method for regenerated micro-powder, which comprises the following steps: uniformly mixing regenerated micro-powder, a chemical additive and water, putting the mixture into a zirconium oxide ball mill, and carrying out wet milling on the micro-powder to prepare micro-powder slurry; and adding the treated slurry, cement and water into a neat slurry stirrer according to the ratio to prepare the cement-micro powder test block with high activity. The regenerated micro powder is subjected to low-carbon treatment, high ball milling efficiency and high dispersity in a liquid environment are utilized, meanwhile, a complex is formed by hydroxyl, amido and phosphate groups in a chemical additive and micro powder metal ions (Ca < 2 + >) in the liquid, and dissolution of the micro powder metal ions is improved, and activity is improved. According to the invention, the chemical admixture is utilized to significantly improve the dissolution and activity of Ca < 2 + > in the regenerated micro powder under the low-carbon combined action, and the activity is up to 75%; and the slurry treated by the combined action can be directly formed without drying, so that the process flow is simple, and the national low-carbon development target is met.
本发明公开了一种再生微粉物理‑化学联合活化再生利用的方法，将再生微粉、化学外加剂和水混合均匀，将混合料放入氧化锆球磨机对微粉进行湿磨制备出微粉浆料；处理后的浆体按照配比与水泥和水共同加入至净浆搅拌机，制备具备高活性的水泥‑微粉试块。本发明对再生微粉进行低碳处理，利用液体环境下高球磨效率和高分散性，同时利用化学外加剂中羟基、胺基和磷酸基团在液体中与微粉金属离子（Ca2+）形成配合物，提高微粉金属离子的溶解增大活性。本发明利用化学外加剂经低碳联合作用后可显著提高再生微粉Ca2+溶解好和活性，活性高达75%；且经联合作用处理完后浆体可直接成型，不需要烘干，工艺流程简单，符合国家低碳发展目标。
Physical-chemical combined activation recycling method for regenerated micro powder
The invention discloses a physical-chemical combined activation recycling method for regenerated micro-powder, which comprises the following steps: uniformly mixing regenerated micro-powder, a chemical additive and water, putting the mixture into a zirconium oxide ball mill, and carrying out wet milling on the micro-powder to prepare micro-powder slurry; and adding the treated slurry, cement and water into a neat slurry stirrer according to the ratio to prepare the cement-micro powder test block with high activity. The regenerated micro powder is subjected to low-carbon treatment, high ball milling efficiency and high dispersity in a liquid environment are utilized, meanwhile, a complex is formed by hydroxyl, amido and phosphate groups in a chemical additive and micro powder metal ions (Ca < 2 + >) in the liquid, and dissolution of the micro powder metal ions is improved, and activity is improved. According to the invention, the chemical admixture is utilized to significantly improve the dissolution and activity of Ca < 2 + > in the regenerated micro powder under the low-carbon combined action, and the activity is up to 75%; and the slurry treated by the combined action can be directly formed without drying, so that the process flow is simple, and the national low-carbon development target is met.
本发明公开了一种再生微粉物理‑化学联合活化再生利用的方法，将再生微粉、化学外加剂和水混合均匀，将混合料放入氧化锆球磨机对微粉进行湿磨制备出微粉浆料；处理后的浆体按照配比与水泥和水共同加入至净浆搅拌机，制备具备高活性的水泥‑微粉试块。本发明对再生微粉进行低碳处理，利用液体环境下高球磨效率和高分散性，同时利用化学外加剂中羟基、胺基和磷酸基团在液体中与微粉金属离子（Ca2+）形成配合物，提高微粉金属离子的溶解增大活性。本发明利用化学外加剂经低碳联合作用后可显著提高再生微粉Ca2+溶解好和活性，活性高达75%；且经联合作用处理完后浆体可直接成型，不需要烘干，工艺流程简单，符合国家低碳发展目标。
Physical-chemical combined activation recycling method for regenerated micro powder
一种再生微粉物理-化学联合活化再生利用的方法
GAO PENG (Autor:in) / TAO SHUQING (Autor:in) / XIAO ZHIMEI (Autor:in) / ZHAN BINGGEN (Autor:in) / YU QIJUN (Autor:in)
08.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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