A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Sulfur-free alkali-free setting accelerator beneficial to durability of sprayed concrete and preparation method of sulfur-free alkali-free setting accelerator
The invention relates to the technical field of setting accelerator production, and relates to a sulfur-free alkali-free setting accelerator beneficial to durability of shotcrete and a preparation method thereof the sulfur-free alkali-free accelerator, wherein the sulfur-free alkali-free setting accelerator comprises the raw materials: aluminum nitrate nonahydrate, acidic silica sol, magnesium fluosilicate, cellulose ether and water. The sulfur-free alkali-free setting accelerator is obtained by the following method: dissolving a required amount of aluminum nitrate nonahydrate with a requiredamount of water, adding a required amount of acidic silica sol, magnesium fluosilicate and cellulose ether, and stirring to obtain the sulfur-free alkali-free setting setting accelerator beneficial tothe durability of sprayed concrete. The sulfur-free alkali-free setting accelerator beneficial to the durability of the sprayed concrete can improve the impermeability and the compressive strength ofthe concrete; and meanwhile, the main component contains nitrate radicals, so that the sulfur-free alkali-free setting accelerator has an anti-corrosion effect on the concrete, and the service life of the concrete is prolonged.
本发明涉及速凝剂生产技术领域，是一种有益于喷射混凝土耐久性的无硫无碱速凝剂及其制备方法，前者原料包括九水合硝酸铝、酸性硅溶胶、氟硅酸镁、纤维素醚和水。按下述方法得到：用所需量的水将所需量的九水合硝酸铝溶解后，加入所需量的酸性硅溶胶、氟硅酸镁和纤维素醚，搅拌后得到有益于喷射混凝土耐久性的无硫无碱速凝剂。本发明制备的有益于喷射混凝土耐久性的无硫无碱速凝剂能提高混凝土的抗渗性和抗压强度，同时，主成分含有硝酸根，对混凝土具有防腐蚀的作用，延长了混凝土的寿命。
Sulfur-free alkali-free setting accelerator beneficial to durability of sprayed concrete and preparation method of sulfur-free alkali-free setting accelerator
The invention relates to the technical field of setting accelerator production, and relates to a sulfur-free alkali-free setting accelerator beneficial to durability of shotcrete and a preparation method thereof the sulfur-free alkali-free accelerator, wherein the sulfur-free alkali-free setting accelerator comprises the raw materials: aluminum nitrate nonahydrate, acidic silica sol, magnesium fluosilicate, cellulose ether and water. The sulfur-free alkali-free setting accelerator is obtained by the following method: dissolving a required amount of aluminum nitrate nonahydrate with a requiredamount of water, adding a required amount of acidic silica sol, magnesium fluosilicate and cellulose ether, and stirring to obtain the sulfur-free alkali-free setting setting accelerator beneficial tothe durability of sprayed concrete. The sulfur-free alkali-free setting accelerator beneficial to the durability of the sprayed concrete can improve the impermeability and the compressive strength ofthe concrete; and meanwhile, the main component contains nitrate radicals, so that the sulfur-free alkali-free setting accelerator has an anti-corrosion effect on the concrete, and the service life of the concrete is prolonged.
本发明涉及速凝剂生产技术领域，是一种有益于喷射混凝土耐久性的无硫无碱速凝剂及其制备方法，前者原料包括九水合硝酸铝、酸性硅溶胶、氟硅酸镁、纤维素醚和水。按下述方法得到：用所需量的水将所需量的九水合硝酸铝溶解后，加入所需量的酸性硅溶胶、氟硅酸镁和纤维素醚，搅拌后得到有益于喷射混凝土耐久性的无硫无碱速凝剂。本发明制备的有益于喷射混凝土耐久性的无硫无碱速凝剂能提高混凝土的抗渗性和抗压强度，同时，主成分含有硝酸根，对混凝土具有防腐蚀的作用，延长了混凝土的寿命。
Sulfur-free alkali-free setting accelerator beneficial to durability of sprayed concrete and preparation method of sulfur-free alkali-free setting accelerator
有益于喷射混凝土耐久性的无硫无碱速凝剂及其制备方法
LI SHUGANG (author) / YANG TAISHAN (author) / LUO WEIBANG (author) / HE CHUANQING (author)
2020-06-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2025
| European Patent Office | 2016
Preparation method of alkali-free setting accelerator for concrete
| European Patent Office | 2020