Concrete rough surface processing agent and its preparation method and application

Abstract

The invention discloses a concrete matte surface treating agent and the preparation method and application thereof, the agent is prepared by neutral or alkaline solution, bond earth and water, the natural or alkaline solution is prepared by the neutralization reaction between the lemon acid solution and the carbonate solution and the pH value is 7-8.5. The preparing method comprises the followingsteps: preparing neutral or alkaline solution; adding bond earth and water into the solution and mixing to uniform; inputting the mixture into a distillation container for reacting, distilling and the powder preparation is prepared after crushing and sieving. And the application comprises the following procedures: preparing the mixed serum; preparing the powder preparation with water by weight and mixing; before the primary agglomerating of the surface of the concrete to be processed coating the mixed serum thereon; and finally flushing with the pressure water when the concrete has agglomerated for seven days. The treating agent of the invention has the advantages of simple producing process, low cost, convenient using of the prepared product, compendious and convenient application at thematte surface of the concrete, good treating effect and effectively settling the corresponding question existing in the matte surface treatment.

Description

technical field [0001] The invention relates to the technical field of concrete rough surface treatment, in particular to a concrete rough surface treatment agent and its preparation method and application. Background technique [0002] At present, in the field of concrete construction, especially in the processing of large-volume concrete pouring joints, the following processing methods are traditionally mainly used: manual chiseling, pneumatic pick roughening, wind sand gun and high-pressure water blasting, etc. However, the above-mentioned methods generally have some common shortcomings, not only the construction labor conditions are poor, the labor intensity is high, but also the construction efficiency is low, the progress is slow, and the amount of concrete loss caused is also large. The most important thing is that the effect of the treatment is not ideal. . In particular, the treatment method for facade concrete surface treatment is more simple, that is, the method ...

AI Technical Summary

Problems solved by technology

It mainly includes the following disadvantages: 1. Due to the poor adsorption of the retarder to the surface of the formwork or concrete, it is difficult to achieve uniform brushing or spraying in practical applications, resulting in a "painted face" on the concrete surface. Secondary treatment; 2. Uneven or excessive spraying and spraying of retarders will have a certain negative impact on the later strength of concrete; 3. Its washing time is difficult to meet the needs of actual construction; 4. Most retarders The ingredients themselves contain citric acid, so the product itself is acidic and has a strong corrosive effect on the human body, steel bars, and concrete

[0004] In a word, the treatment methods for the rough surface of concrete adopted in the prior art are all mechanical treatments, which are likely to cause loosening and cracks of the deep concrete, thus reducing the integrity of the concrete, which is contrary to the original intention of the rough surface treatment

[0005] Now more popular treatment methods in foreign countries include high-pressure water flushing (water pressure > 35MPa), mechanical wire brushing, etc. Although the efficacy is high, the process is too complicated, the cost is high, and the supporting equipment is complete, which is not suitable for my country's national conditions.