Inorganic grouting material capable of stopping open water and reinforcing structure as well as preparation method and application thereof

Abstract

The invention discloses an inorganic grouting material capable of stopping open water and reinforcing a structure as well as a preparation method and application thereof. The inorganic grouting material comprises a component A and a component B, wherein the component A comprises 3-4 parts of a potassium silicate solution, 2-3 parts of a sodium silicate solution, 1-1.5 parts of a dispersing agent,0.1-0.2 part of a defoaming agent and 10-13 parts of water; and the component B comprises 0.1-0.2 part of a water reducing agent, 20-25 parts of superfine cement, 8-9 parts of mineral powder, 0.5-0.7part of silica fume, 2-3 parts of fly ash, 0.5-0.6 part of a flocculating agent, 0.5-0.6 part of an expanding agent, 0-1 part of a retarder and 10-13 parts of water. The grouting material is an inorganic grouting material mainly made of a cement-based material, so that the effect of solidification in an extremely short time can be achieved; the curing time can be adjusted, water can be cured and stopped in a short time, the grouting material cannot be scattered by water flow, the effect of reinforcing the structure can be achieved after hardening, a hardened body does not shrink and has service lifetime same as that of a concrete structure, and industrial development of building grouting waterproofing and leaking stoppage can be effectively promoted.

Description

technical field [0001] The invention belongs to leak-stopping materials for construction, and in particular relates to an inorganic grouting material capable of stopping open water and reinforcing structures, a preparation method and application thereof. Background technique [0002] Cracking of concrete is inevitable. Once the cracks are penetrating and there is an external water source, water will leak in from the cracks. Therefore, the cracks must be sealed with grouting in an environment with open water. Commonly used grouting materials include inorganic grouting materials, such as ultrafine cement or conventional cement plus water glass, organic grouting materials, such as foamed polyurethane (water-based polyurethane or oily polyurethane) or epoxy resin. The advantage of ultra-fine cement grout is that the hardened body has high strength, good bonding strength with the surrounding concrete, and the same material as the surrounding concrete structure, and has a long lif...

AI Technical Summary

Problems solved by technology

The advantage of ultra-fine cement grout is that the hardened body has high strength, good bonding strength with the surrounding concrete, and the same material as the surrounding concrete structure, and has a long life, but it is easy to shrink after hardening, and the setting time is uncontrollable. Larger open water is easily washed away

Although conventional cement plus water glass can adjust the hardening time, it can achieve the effect of quick setting in a short time, but the hardened body is easy to shrink, and its compactness will also be affected

The advantage of foamed polyurethane is that it foams when it encounters water, and it can stop water quickly, and the effect is obvious. However, the foam has no strength and cannot reinforce the structure. will shrink

The advantage of epoxy resin is that the hardened body has high strength and can strengthen the structure, but it is difficult to cure in open water environment. Even if it is cured, the bonding strength with the surrounding concrete will be weak, and the polymer material is not UV resistance, easy to aging failure

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