A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Magnesium slag cementing material and forming process method thereof
The invention discloses a technological method for improving the forming capacity and strength of a magnesium slag cementing material. Calcium salt in the magnesium slag reacts to generate calcium carbonate by adopting a method of adding baking soda (NaHCO3) into the magnesium slag; 2 gamma-C2S + 4H <+> = 4Ca < 2 + > (aq) + 2SiO4<4->(aq) + 4H <+> is the hydrolysis process of the main component dicalcium silicate of the magnesium slag, H <+> introduced by baking soda is used for reaction, and meanwhile, the magnesium slag contains a certain amount of CaO and Ca < 2 + >; CaCO3 is generated through two reactions, the forming capacity and strength of the magnesium slag material are improved, meanwhile, CaCO3 has high compactness, the porosity of the material can be reduced, and therefore the durability of the material is improved under the condition that steel is not added internally; production can be carried out without special materials and equipment; the method has the advantages of being controllable in cost, simple in process and excellent in performance, and the problem that the magnesium slag cementing material is low in strength is well solved.
一种提升镁渣胶凝材料成型能力及强度的工艺方法，采用在镁渣中加入小苏打(NaHCO3)的方法将镁渣中的钙盐反应生成为碳酸钙，其中2γ‑C2S+4H+＝4Ca2+(aq)+2SiO44‑(aq)+4H+为镁渣主要成分硅酸二钙的水解过程，通过小苏打引入的H+进行反应，同时镁渣中含有一定量的CaO与Ca2+；通过两个反应产生CaCO3，提升镁渣材料的成型能力和强度，同时CaCO3具有较高的致密性，可减小材料的孔隙率，从而在不内加钢材的情况下提高材料的耐久性；无需特殊材料及设备即可进行生产；具有成本可控、流程简易及性能优良的优点，很好的解决了镁渣胶凝材料强度低的问题。
Magnesium slag cementing material and forming process method thereof
The invention discloses a technological method for improving the forming capacity and strength of a magnesium slag cementing material. Calcium salt in the magnesium slag reacts to generate calcium carbonate by adopting a method of adding baking soda (NaHCO3) into the magnesium slag; 2 gamma-C2S + 4H <+> = 4Ca < 2 + > (aq) + 2SiO4<4->(aq) + 4H <+> is the hydrolysis process of the main component dicalcium silicate of the magnesium slag, H <+> introduced by baking soda is used for reaction, and meanwhile, the magnesium slag contains a certain amount of CaO and Ca < 2 + >; CaCO3 is generated through two reactions, the forming capacity and strength of the magnesium slag material are improved, meanwhile, CaCO3 has high compactness, the porosity of the material can be reduced, and therefore the durability of the material is improved under the condition that steel is not added internally; production can be carried out without special materials and equipment; the method has the advantages of being controllable in cost, simple in process and excellent in performance, and the problem that the magnesium slag cementing material is low in strength is well solved.
一种提升镁渣胶凝材料成型能力及强度的工艺方法，采用在镁渣中加入小苏打(NaHCO3)的方法将镁渣中的钙盐反应生成为碳酸钙，其中2γ‑C2S+4H+＝4Ca2+(aq)+2SiO44‑(aq)+4H+为镁渣主要成分硅酸二钙的水解过程，通过小苏打引入的H+进行反应，同时镁渣中含有一定量的CaO与Ca2+；通过两个反应产生CaCO3，提升镁渣材料的成型能力和强度，同时CaCO3具有较高的致密性，可减小材料的孔隙率，从而在不内加钢材的情况下提高材料的耐久性；无需特殊材料及设备即可进行生产；具有成本可控、流程简易及性能优良的优点，很好的解决了镁渣胶凝材料强度低的问题。
Magnesium slag cementing material and forming process method thereof
一种镁渣胶凝材料及其成型工艺方法
MA JIANXUN (author) / DAI YUHENG (author) / XU XIN (author) / ZHANG LINGLING (author) / GUO CHEN (author)
2020-11-06
Patent
Electronic Resource
Chinese
Optimized magnesium slag-based cementing material and preparation method thereof
| European Patent Office | 2021
Magnesium slag carbon sequestration cementing material and preparation method thereof
| European Patent Office | 2023
Water-resistant undisturbed phosphogypsum-magnesium-rich slag cementing material
| European Patent Office | 2022
Slag micropowder cementing material and preparation method thereof
| European Patent Office | 2022