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A platform for research: civil engineering, architecture and urbanism
Special cement for tunnel guniting
The invention relates to the technical field of guniting cement, and discloses special cement for tunnel guniting, which comprises the following components in percentage by mass: 80-85% of cement clinker, 6-11% of slag, 2-4% of limestone, 5-8% of anhydrite and 6-9% of accelerator. The accelerator comprises aluminum sulfate, organic alcohol amine, silica fume and silicic acid in a mass ratio of (6-7): (0.5-0.8): (1-2): (0.6-1.2): (0.1-0.4). Meanwhile, the invention discloses a concrete composite layer and a construction method of the concrete composite layer. By adding silicic acid, the pH value of the system can be adjusted, dissolution and hydration of silicate in the cement clinker can be promoted, Ca < 2 + > is separated out, the concentration of Ca < 2 + > in the system is increased, generation of ettringite is promoted, and the early strength is enhanced; the cement with the components is further applied to a concrete composite layer, and the effects of excellent anti-permeability and high strength can be achieved after construction.
本发明涉及喷浆水泥技术领域，公开了一种隧道喷浆专用水泥，按质量百分数计，包括：水泥熟料80％～85％、矿渣6％～11％、石灰石2％～4％硬石膏5％～8％、速凝剂6％～9％；所述速凝剂，包括硫酸铝、有机醇胺、微硅粉、以及硅酸，其质量比依次为6～7:0.5～0.8:1～2:0.6～1.2:0.1～0.4。同时公开了其应用于混凝土复合层以及混凝土复合层的施工方法。本申请通过加入硅酸能够调节体系的pH值，进而能够促进水泥熟料中的硅酸盐溶解和水化，分离出Ca2+，进而增加体系中Ca2+的浓度，进而促使钙矾石的生成，强化早期强度；进一步将该组分的水泥应用于混凝土复合层，施工后能够达到抗渗性优良、强度较高的效果。
Special cement for tunnel guniting
The invention relates to the technical field of guniting cement, and discloses special cement for tunnel guniting, which comprises the following components in percentage by mass: 80-85% of cement clinker, 6-11% of slag, 2-4% of limestone, 5-8% of anhydrite and 6-9% of accelerator. The accelerator comprises aluminum sulfate, organic alcohol amine, silica fume and silicic acid in a mass ratio of (6-7): (0.5-0.8): (1-2): (0.6-1.2): (0.1-0.4). Meanwhile, the invention discloses a concrete composite layer and a construction method of the concrete composite layer. By adding silicic acid, the pH value of the system can be adjusted, dissolution and hydration of silicate in the cement clinker can be promoted, Ca < 2 + > is separated out, the concentration of Ca < 2 + > in the system is increased, generation of ettringite is promoted, and the early strength is enhanced; the cement with the components is further applied to a concrete composite layer, and the effects of excellent anti-permeability and high strength can be achieved after construction.
本发明涉及喷浆水泥技术领域，公开了一种隧道喷浆专用水泥，按质量百分数计，包括：水泥熟料80％～85％、矿渣6％～11％、石灰石2％～4％硬石膏5％～8％、速凝剂6％～9％；所述速凝剂，包括硫酸铝、有机醇胺、微硅粉、以及硅酸，其质量比依次为6～7:0.5～0.8:1～2:0.6～1.2:0.1～0.4。同时公开了其应用于混凝土复合层以及混凝土复合层的施工方法。本申请通过加入硅酸能够调节体系的pH值，进而能够促进水泥熟料中的硅酸盐溶解和水化，分离出Ca2+，进而增加体系中Ca2+的浓度，进而促使钙矾石的生成，强化早期强度；进一步将该组分的水泥应用于混凝土复合层，施工后能够达到抗渗性优良、强度较高的效果。
Special cement for tunnel guniting
一种隧道喷浆专用水泥
WANG XUAN (author) / LUO JUNMING (author) / WU YONGGANG (author)
2023-12-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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