Repairing material of cement concrete structure and preparation method for same

Abstract

The invention relates to a repairing material of a cement concrete structure and a preparation method for the same, wherein the repairing material comprises the following components: alkaline residue composite calcinates, lithium hydroxide, sodium fluorosilicate, polycarboxylic water reducer, lithium carbonate, calcium aluminate, borax, sodium chlorate, calcium sulphate, rosin powder, magnesium oxide and silica; and the ratio of the mass of each component to a total mass is as follows: the alkaline residue composite calcinates: 50-70 parts, the lithium hydroxide: 0.2-0.6 part, the sodium fluorosilicate: 0.1-0.6 part, the polycarboxylic water reducer: 0.1-0.5 part, the lithium carbonate: 2-7 parts, the calcium aluminate: 8-18 parts, the borax: 0.03-0.5 part, the sodium chlorate: 0.1-1 part, the calcium sulphate: 5-15 part, the rosin powder: 0.03-0.1 part, the magnesium oxide: 0.1-0.5 part, and the silica: 5-12 parts. According to the embodiment of the invention, alkaline residue is effectively utilized, thus lightening environmental pollution; and moreover, the cost of raw materials is decreased and the cost performance of product is improved while the quality of product is improved.

Description

technical field [0001] The invention relates to the construction field, in particular to a repair material for cement concrete structures and a preparation method thereof. Background technique [0002] With the gradual expansion of the modernization process, cement concrete buildings can be seen almost everywhere. As the name implies, cement concrete buildings are buildings built with cement concrete as the main raw material, such as: cement pipes, cement pavements, cement statues, cement floors, cement walls, etc. As we all know, cement concrete structures will be damaged due to different external forces during use (corresponding external forces can include long-term sun and rain, rolling with different intensities and frequencies, man-made damage, etc.); Among the cement concrete buildings, the cement pavement is an important transportation facility for carrying vehicles, and its frequency of damage, degree of damage, and difficulty of repair after damage are much higher ...

AI Technical Summary

Problems solved by technology

[0004] First, due to the limitations of existing repair materials, these damages need to be repaired for a long time before they can be completely repaired, otherwise cracks will appear in the repaired parts of the damage, which will directly affect its load-bearing strength and durability; however, this repair The final health maintenance process can not be completed in one or two hours, it often takes several days or even longer, which will not only increase labor costs, but also seriously affect the traffic conditions on the road surface

[0005] Second, when choosing repair materials, it is necessary to consider the compatibility between the damaged cement concrete and the repair materials. If the compatibility between the two is not good, fractures will easily occur between the damaged parts and the repair materials. Multiple repairs in a short period of time; however, among the existing repair materials, the repair materials with good compatibility are very expensive, which will inevitably greatly increase the repair cost

At present, the annual discharge of alkali slag in my country is as high as 1.263 million tons. Most of these alkali slags are treated by surface accumulation. A large amount of alkali slag accumulates together to form a "white sea", causing serious pollution to the surrounding water.

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