Non-shrink high viscosity chemical grout

Abstract

The present invention relates to a non-shrink high viscosity chemical grout composition, more particularly to a non-shrink high viscosity chemical grout composition comprising, on the basis of solid content, a) 100 parts by weight of a room temperature curable organic liquid phase resin; b) 10 to 200 parts by weight of glass beads; and c) 10 to 500 parts by weight of glass powder. In addition, the present invention relates to a method for repairing and reinforcing a construction using the non-shrink high viscosity chemical grout composition. The non-shrink high viscosity chemical grout composition of the present invention has superior acid resistance, alkali resistance, injection property, fluidity, crack resistance, impact resistance, adhesion property and storage property, and the method for repairing and reinforcing a construction of the present invention has affinity with subsidiary materials, can completely restore function and shape of a construction in short time due to rapid curing and simple construction, compensates properties of construction such as tensile strength, allows strong adhesion to a construction, and prolongs lifetime of a construction.

Description

technical field [0001] The invention relates to non-shrinkage high-viscosity chemical grouting, especially non-shrinkage high-viscosity chemical grouting with excellent acid resistance, alkali resistance, injectability, fluidity, impact resistance, crack resistance, adhesion and storage resistance. Also, the present invention relates to methods of repairing and reinforcing buildings using the non-shrinkage high viscosity chemical grout. Background technique [0002] Grouting material is an injection material that is injected into the cracks or cavities of the foundation to obtain the effect of soil reinforcement or water leakage prevention. [0003] The injection material is filled using gravity or a pump, and is used to enhance the supporting force of a shaft portion or a base portion of a building or repair cracks of a building. [0004] According to its construction use, grouting can be divided into water retention grouting, foundation improvement grouting, filling grout...

AI Technical Summary

Problems solved by technology

However, since the sodium silicate added as a filler has a high adsorption force to the resin, the chemical grouting with epoxy resin as the main component has the problem that the sodium silicate filler is not uniformly dispersed and thus cannot function as a filler, and the grouting The strength of the crack is reduced, and the adhesion between the cracks is reduced so that the crack occurs again

[0011] Also, when conventional grouts containing epoxy and sodium silicate are injected into cracks, the grout may not be easily injected due to the presence of air bubbles in the cracks

In particular, in the case of narrow pipe or crack widths, the injection of grout is severely blocked by air bubbles

and the grout is either adsorbed to the parent building or cured and shrinks so it cannot completely fill in the cracks

[0012] In addition, traditional repair and reinforcement methods for buildings are complicated, and it takes a long time before the building is restored to normal after repair, the damaged appearance cannot be fully restored, and cracks often regenerate

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