Concrete micro-crack grouting repairing device based on industrial calcium-based solid waste and carbon dioxide tail gas and working method

Abstract

The invention relates to a concrete micro-crack grouting repairing device based on industrial calcium-based solid waste and carbon dioxide tail gas and a working method, and belongs to the field of concrete repairing. Comprising a repairing agent preparation device, a repairing agent conveying device and a grouting repairing device. A water filling nozzle is arranged above the liquid storage tank, the liquid storage tank is filled with a mixed solution of a calcium-based industrial solid material and deionized water which are proportionally prepared, and the carbon dioxide gas tank is connected to the liquid storage tank through a pipeline; the repairing agent conveying device comprises a water pump and a conveying hose, the grouting repairing device comprises a liquid injection gun, the water pump conveys a solution in the liquid storage tank to the liquid injection gun through the conveying hose, and a heating plate is arranged on the liquid injection gun. According to the invention, carbon dioxide can be sealed, and the prepared calcium bicarbonate solution is used as a concrete microcrack repairing agent, has high fluidity, can generate calcium carbonate crystals with a cementing effect in concrete microcracks, fills gaps, builds a net-shaped structure, and gradually forms an integral structure with original concrete to complete crack repairing.

Description

technical field [0001] The invention relates to a concrete micro-crack grouting repairing device and a working method based on industrial calcium-based solid waste and carbon dioxide tail gas, and belongs to the technical field of concrete repairing. Background technique [0002] Concrete is the main construction material for building structures and plays a decisive role in the quality and service life of buildings. Due to its own brittleness and the influence of the service environment, concrete will produce different degrees of micro-cracks and local damage. If the cracks are not repaired in time, they will expand into macro-cracks, and external water and erosive media will gradually infiltrate from the surface defects of the material. , which will eventually lead to accelerated deterioration of concrete, resulting in immeasurable losses. Therefore, taking effective measures to repair micro-cracks in concrete structures is of great significance for improving the overall q...

AI Technical Summary

Problems solved by technology

Long-term effects are not ideal due to shrinkage and aging effects

Chemical grouting materials have problems such as high viscosity, high brittleness after curing, poor durability, and environmental pollution, and it is difficult to judge whether the grouting is integrated with the structure

In addition, although concrete has a certain self-healing ability for micro-cracks, the crack width range of self-healing ability is 0.1-0.2mm, which is far from meeting the repairing requirements of concrete cracks in actual engineering.

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