Patching material for preventing and treating corrosion and disease of tunnel lining concrete salt

A technology for repairing materials and concrete, which is applied in sustainable waste treatment, solid waste management, climate sustainability, etc. It can solve problems such as corrosion and deterioration, prolong service life, improve sulfate corrosion resistance, and have good economic effects Effect

CN102167555AInactive Publication Date: 2011-08-31CENT SOUTH UNIV
4 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2011-08-31
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a patching material for preventing and treating the corrosion and the disease of a tunnel lining concrete salt. The patching material consists of ordinary portland cement, a silica alumina mineral component, an expansion component, a rubber mass polymer component, polyacrylonitrile fiber and a condensation adjusting component, wherein the mass ratio of the components is 60:30:8:2-3:0.3:2-4. The patching material can be used for effectively patching, preventing and treating the corrosion and the disease of the tunnel lining structural salt, obviously improving the endurance quality of the existing disease tunnel structure, and prolonging the service life of the tunnel structure, and has the characteristics of being high in cost performance, simple to operate and good in adaptability.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a cement-based repair material for preventing and curing the salt erosion disease of tunnel lining concrete, which prolongs the service life of the existing tunnel lining concrete structure under the condition of salt erosion. Background technique

[0002] Tunnel is a kind of cavity-shaped structure buried under (rock) soil layer. The outside is affected by the surrounding rock (soil) and water and ion medium in the rock layer; the internal structure is adjacent to the air and is affected by the relatively closed atmospheric environment; At the same time, in the operating state, it is also affected by the operation of pedestrians and vehicles.

[0003] The special structural type of the tunnel is obviously different from the general concrete structure, which is mainly reflected in the fact that both the inside and outside of the lining concrete structure are affected by the environmental medium, and the damage and deterioration...

Examples

Embodiment

[0032] Table 1 Examples of mixing ratios of different samples used in the sulfate attack resistance test

[0033]

[0034] In Table 1: 1) the repair material of embodiment A is ordinary Portland cement, silica-alumina mineral component, expansion component, rubber-based polymer component, polyacrylonitrile fiber, and the mass ratio of coagulation adjustment component is: 60 :30:8:1:0.3:4;

[0035] 2) The repair material in Example B is ordinary Portland cement, silica-alumina mineral components, expansion components, rubber-based polymer components, polyacrylonitrile fibers, and the mass ratio of coagulation adjustment components is: 60:30:8 :2:0.3:4;

[0036] 3) The repair material in Example C is ordinary Portland cement, silica-alumina mineral components, expansion components, rubber-based polymer components, polyacrylonitrile fibers, and the mass ratio of coagulation adjustment components is: 60:30:8 :3:0.3:4;

[0037] 4) The repair material in Example D is ordinary ...