Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rapid repair mortar and preparation method thereof
The invention discloses rapid repair mortar and a preparation method thereof, and the rapid repair mortar comprises the following raw materials in parts by weight: 300-500 parts of coated modified magnesium oxide, 100-150 parts of phosphate, 0-50 parts of a thickening time control agent, 300-600 parts of quartz sand, 60-100 parts of a ground admixture and 5-20 parts of a rheological agent. All the powder materials are uniformly mixed, a proper amount of mixing water is added, and the mixture is uniformly stirred. The magnesium oxide particles are subjected to surface coating modification, and the reaction activity of magnesium oxide can be reduced at a relatively low calcination temperature, so that the operable time of the magnesium phosphate cement-based repair material is prolonged, and meanwhile, an in-situ polymer modified layer is formed on the surfaces of the magnesium oxide particles; the bonding performance of the magnesium phosphate gel with other powder and aggregate is enhanced. In addition, resource utilization can be carried out on harmful solid waste such as red mud and nickel slag, the aluminum phase and the iron phase can react with phosphate to generate new mineral phases, and the mechanical performance and durability of the magnesium phosphate material are improved.
本发明公开了一种快速修复砂浆及其制备方法，按重量份数计，快速修复砂浆原料包括包覆改性氧化镁300～500份，磷酸盐100～150份，调凝剂0～50份，石英砂300～600份，磨细掺合料60～100份，流变剂5～20份。将各粉料混合均匀，加入适量拌和水搅拌均匀即可使用。本发明通过对氧化镁颗粒进行表面包覆改性，在较低的煅烧温度下就可以降低氧化镁的反应活性，从而延长了磷酸镁水泥基修复材料的可操作时间，同时在氧化镁颗粒表面形成原位聚合物改性层，增强了磷酸镁凝胶与其他粉体和骨料的粘结性能。此外，本发明可对赤泥、镍渣等有害固废进行资源化利用，铝相和铁相都可以与磷酸盐反应生成新的矿物相，提高磷酸镁材料的力学及耐久性能。
Rapid repair mortar and preparation method thereof
The invention discloses rapid repair mortar and a preparation method thereof, and the rapid repair mortar comprises the following raw materials in parts by weight: 300-500 parts of coated modified magnesium oxide, 100-150 parts of phosphate, 0-50 parts of a thickening time control agent, 300-600 parts of quartz sand, 60-100 parts of a ground admixture and 5-20 parts of a rheological agent. All the powder materials are uniformly mixed, a proper amount of mixing water is added, and the mixture is uniformly stirred. The magnesium oxide particles are subjected to surface coating modification, and the reaction activity of magnesium oxide can be reduced at a relatively low calcination temperature, so that the operable time of the magnesium phosphate cement-based repair material is prolonged, and meanwhile, an in-situ polymer modified layer is formed on the surfaces of the magnesium oxide particles; the bonding performance of the magnesium phosphate gel with other powder and aggregate is enhanced. In addition, resource utilization can be carried out on harmful solid waste such as red mud and nickel slag, the aluminum phase and the iron phase can react with phosphate to generate new mineral phases, and the mechanical performance and durability of the magnesium phosphate material are improved.
本发明公开了一种快速修复砂浆及其制备方法，按重量份数计，快速修复砂浆原料包括包覆改性氧化镁300～500份，磷酸盐100～150份，调凝剂0～50份，石英砂300～600份，磨细掺合料60～100份，流变剂5～20份。将各粉料混合均匀，加入适量拌和水搅拌均匀即可使用。本发明通过对氧化镁颗粒进行表面包覆改性，在较低的煅烧温度下就可以降低氧化镁的反应活性，从而延长了磷酸镁水泥基修复材料的可操作时间，同时在氧化镁颗粒表面形成原位聚合物改性层，增强了磷酸镁凝胶与其他粉体和骨料的粘结性能。此外，本发明可对赤泥、镍渣等有害固废进行资源化利用，铝相和铁相都可以与磷酸盐反应生成新的矿物相，提高磷酸镁材料的力学及耐久性能。
Rapid repair mortar and preparation method thereof
一种快速修复砂浆及其制备方法
XIA QIANG (Autor:in) / LIU XINGRONG (Autor:in) / DU ZHIQIN (Autor:in) / CHEN JIAN (Autor:in) / WEN JINBAO (Autor:in) / TANG XIUSHENG (Autor:in) / ZHU YERAN (Autor:in) / WANG SONG (Autor:in) / JI HAI (Autor:in) / LIU YE (Autor:in)
31.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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