What are the construction plans for steel bar rust removal and what are the methods for steel bar ru

1. Manual rust removal.

It is more difficult to remove rust by hand, and for thicker rust spots, you can use a hammer to loosen them, and then use a shovel to remove them. This method is easy to operate, but the rust removal efficiency is low, and it is difficult to achieve the specified cleanliness and roughness.

2. Mechanical rust removal.

Mechanical rust removal can completely remove rust, can carry out hair treatment on the coating, and the efficiency is better than manual rust removal, but the disadvantage is that the surface roughness is small, and the high-quality surface treatment quality cannot be achieved.

3. Chemical rust removal.

Chemical rust removal is the use of steel bar rust remover, this steel bar rust remover is more economical and labor-saving, is a more popular rust removal method, suitable for various forms and degrees of rust of steel bar rust removal.

Rebar rust removerRebar derusting fluid product description.

Product Category: Rebar Rust Remover.

In-situ rust removal: Load the stock solution into the sprayer and spray the surface of the steel bar directly (Note: when the rust on the surface of the steel bar is light as floating rust, spray the stock solution directly; When the surface of the steel bar is heavy rust or slag dropping, it should be beaten first and then sprayed with steel bar rust remover, and it is best to spray steel bar rust remover after grinding

Soak and remove rust: The steel bar rust remover can be diluted 2 to 3 (preferably the original solution), and then the steel bar and shelf pipe can be immersed in the steel bar rust remover, and the rust can be cleaned and dried.

In-situ rust removal of bound steel bars: Load the steel bar rust remover (the original solution is used, cannot be mixed with water) into the sprayer and spray it directly on the surface of the steel bar, so as to moisten the rust stains of the steel bar. The surface is dry for 2-4 hours, and the dry is 24 hours, and the original color of the steel bar is exposed after drying.

Effective rust prevention for 3-6 months, protect the steel bar from floating rust and spot rust, eliminate the harm of steel corrosion, save the cost of rust removal and reinforcement, short construction period and low cost, safe, environmental protection and fast. (Note: When the rust on the surface of the steel bar is light and floating rust, spray the stock solution directly; When the surface of the steel bar is heavily rusted or slag dropped, it should be beaten or vibrated first and then sprayed with steel bar rust remover).

3. Rust removal of severely corroded binding steel bars: pre-rust removal of steel bars (knocking or vibration) - spraying steel bar rust remover - > high-pressure water gun washing. Note that before spraying steel bar rust remover, it is best to rinse it with a high-pressure water gun first, and then spray steel bar rust remover.

Method 1: Use steel bar rust remover to remove rust.

Steel bar rust remover product composition mainly contains organic acid, citric acid and other composite components, does not contain hydrochloric acid and oxalic acid and other strong acids and alkalis, when using, not only does not need to mix with water, the use of stock solution, simple operation, no corrosion on the surface of the steel bar, does not change the performance of the steel bar, and does not affect the grip and wrap force of the steel bar and concrete, so it is an ideal choice for steel bar rust removal.

Method 2: Use a steel bar rust remover to remove rust.

Rebar derusting machine is a machine and equipment specialized in rebar derusting. The steel bar derusting machine produced by Zhengzhou Sanchao Derusting Technology has a variety of steel bar derusting machine models such as automatic steel bar derusting machine and manual steel bar derusting machine, which has high rust removal efficiency and is suitable for steel bar derusting of a large number of rebar raw materials and steel dealers on the construction site.

Method 3: Steel bar sandblasting and rust removal construction.

Steel bar sandblasting and rust removal is to use high-speed air flow to blast sand on the workpiece, and use the striking force of sand and gravel to remove rust stains. Sandblasting and rust removal originated from the anti-corrosion industry before coating rust removal (the conventional rust removal method is angle grinder rust removal and sandblasting machine rust removal), sandblasting rust removal four people a team, a skilled team can process 200 square meters per day, converted into 25 steel bars for 12-15 tons. Therefore, the use of this method is not only convenient and fast, but also can solve the problem of steel bar rust removal without doing it yourself.

Method 1: Use steel bar rust remover to remove rust.

Steel bar rust remover product composition mainly contains organic acid, citric acid and other composite components, does not contain hydrochloric acid and oxalic acid and other strong acids and alkalis, when using, not only does not need to mix with water, the use of stock solution, simple operation, no corrosion on the surface of the steel bar, does not change the performance of the steel bar, and does not affect the grip and wrap force of the steel bar and concrete, so it is an ideal choice for steel bar rust removal.

Method 2: Use a steel bar rust remover to remove rust.

Rebar derusting machine is a machine and equipment specialized in rebar derusting. The steel bar derusting machine produced by Zhengzhou Sanchao Derusting Technology has a variety of steel bar derusting machine models such as automatic steel bar derusting machine and manual steel bar derusting machine, which has high rust removal efficiency and is suitable for steel bar derusting of a large number of rebar raw materials and steel dealers on the construction site.

Method 3: Steel bar sandblasting and rust removal construction.

Steel bar sandblasting and rust removal is to use high-speed air flow to blast sand on the workpiece, and use the striking force of sand and gravel to remove rust stains. Sandblasting and rust removal originated from the anti-corrosion industry before coating rust removal (the conventional rust removal method is angle grinder rust removal and sandblasting machine rust removal), sandblasting rust removal four people a team, a skilled team can process 200 square meters per day, converted into 25 steel bars for 12-15 tons. Therefore, the use of this method is not only convenient and fast, but also can solve the problem of steel bar rust removal without doing it yourself.

There are many methods of steel bar rust removal at present, manual grinding rust removal method, chemical steel bar rust removal agent method, physical steel bar rust removal machine rust removal method, etc., what method to use, it depends on your steel bar rust situation, the state of the steel bar, whether it is raw material or tied, according to different situations to choose different rust removal methods, so that the rust removal effect is better, and the rust removal construction is more efficient. For example:

The manual grinding method is more suitable for the situation that the rust of the steel bar is very light, the surface of the steel bar is only a layer of floating rust, and the number of steel bars is very small.

The chemical steel bar rust remover method is a popular steel bar rust removal method, which is more applicable to both the steel bar raw material and the bound steel bar, and the construction operation is also very simple and the efficiency is also very high.

The physical steel bar derusting machine derusting method is only applicable to the rust removal of rebar raw materials, but the efficiency is fast, if the number of raw steel bars is large, you can use the physical steel bar derusting machine derusting method.

There are many ways to deal with steel rust, to reach a certain degree of rust, the surface of the steel bar is eroded called rust flake flower, which is the need to remove rust, if not rust, the steel bar matrix causes serious damage, then the steel bar is scrapped, the economic loss is huge, there are many rust removal equipment in the market at present, many equipment is currently widely used, the cost is very large, the effect is obvious, there will be rust return, and the "rust remover" recognized by the market in rust removal avoids the phenomenon of rust return after rusting, the main features.

1. High safety performance, no phosphorus, no volatile, no odor, non-toxic, non-flammable and explosive.

2. It has wide applicability, and can replace sulfuric acid, hydrochloric acid, nitric acid, and some strong acidic and state-controlled products that pollute the air environment.

3. The performance is efficient, the rust can be removed thoroughly, the substrate is not damaged, the rust is washed without water after the rust is removed, the follow-up process of post-treatment is not affected, and there is no rust return phenomenon after the weld is derusted.

4. The speed of rust removal can be completed in 10-50 minutes within the range of room temperature, and the time for severe erosion is longer, and the work of removing the oxide scale can be done.

5. Environmental protection and high efficiency, the pH value of the working liquid is neutral, the waste liquid is also weakly acidic, no acidification reaction will occur, there are no heavy metal ions, and the waste liquid can be directly discharged after simple treatment, which can avoid the cost and labor cost of customer wastewater treatment.

Earth rust removal is a steel bar environmental protection rust remover: a kind of organic acids (plant acid, citric acid and edible phosphoric acid), complexing agents, permeation agents, corrosion inhibitors, surfactants, water and thickeners and other raw materials to prepare a high-efficiency rust remover, steel bar rust remover has the characteristics of high efficiency, fast, low quality, convenient construction. Compared with the traditional pickling rust remover, there are many advantages, environmental protection, pollution-free, non-toxic and harmless, no corrosion of steel bars, only reaction to rust, does not affect the performance of steel bars, and can also improve the adhesion of steel bars to concrete, no washing.

How is it relatively simple to remove rust from steel bars, and how to remove rust from steel bars.

At present, the commonly used methods for removing rust from steel bars are: 1. Artificial wire brush grinding. 2. Sandblasting and rust removal. 3. High-pressure water gun to remove rust. 4. Rust removal. 5. Electric shock to remove rust. 6. Chemical rust removal.

There were few rust removal before, but in recent years, the requirements have been stricter before rust removal began, but it is common to polish and remove rust for artificial wire brushes. With the rapid development of the economy and the pace of life, especially after the labor wage has become high, manual grinding has become less and less due to factors such as high cost, low efficiency and poor manual management. Chemical rust removal is becoming more and more popular in the market because of its high efficiency, good effect and low cost!

However, the steel bar rust removal sold on the market is mixed, especially the manufacturers in Shandong and Guangdong openly add hydrochloric acid, which makes the entire industry cover a great potential danger. In order to enable the construction site to use real steel rust removers and be responsible for the quality of building closure, the relevant information is listed below for reference when purchasing.

A real steel bar rust remover should meet the following requirements:

1. It does not contain strong acids, especially hydrochloric acid and sulfuric acid, which are prohibited in building codes.

2. The steel bar rust remover does not corrode the steel bar and does not change the mechanical properties of the steel bar.

3. After rust removal, the anti-rust effect is good and good, and the water hole state is not powdery dust.

4. After rust removal, it can effectively improve the gripping force of reinforced concrete.

5. The steel rust remover can not harm the performance of the concrete.

At present, most of the steel bar rust removers sold on the market add hydrochloric acid in order to pursue the rust removal effect, but hydrochloric acid is strictly prohibited from being used in building codes. How to identify whether the steel rust remover contains hydrochloric acid, the first is to take a sample to the local quality supervision station or chemical research institute to test the hydrochloric acid content (earth rust removal technology can provide technical support), and then by the senses to identify, the hydrochloric acid content is high pungent odor and the agent is yellow; Low content or use high-purity hydrochloric acid in the sun for a few minutes, the color of the agent quickly turns yellow. At present, the steel bar rust remover sold by bad manufacturers in Shandong, Hubei, Hunan and Jiangxi contains hydrochloric acid, which seriously damages the interests of the steel bar rust remover industry, and it is recommended that users consider it carefully.

However, the rust of steel bars is a headache, the world's annual construction sites due to rust and damage of steel products accounted for one-tenth of the year's steel production, in China, the annual rust of steel bars amounted to nearly 100 million tons. Therefore, how to protect the steel bar from corrosion is of great significance.

Is steel rust removal a technical job? In this issue, teach you how to save the most cost of rust removal, and what are the advantages of steel bar rust removal?

At present, there are many kinds of treatment methods and countermeasures in the market, and there are generally the following methods for steel rust removal at construction sites:

1. Manual rust removal.

Manual rust removal is the most common method of steel rust removal, using tools such as shovels, wire brushes, scrapers, etc. The advantage of this kind of steel rust removal method is to save costs, but there are many disadvantages, such as large labor, low efficiency, and incomplete rust removal, which is only suitable for steel with a small rust removal area and a light degree of rust.

Second, the machine derusting.

Machine rust removal generally uses steel bar derusting machine, sandblasting equipment and high-pressure waterjet equipment to remove rust.

Three kinds. Steel bar derusting machine is a more commonly used mechanical derusting method, which is simple to operate, relatively stable, has high derusting efficiency, and will not pollute the environment. However, the steel bar descaling machine is only suitable for rebar raw material derusting.

Sandblasting and rust removal can effectively remove impurities on the metal surface, such as oxide scale, old rust, etc., and the rust removal effect is good.

High-pressure waterjet equipment rust removal is a high-pressure water gun that can remove soft concrete and slurry, exposing the joint surface. The part of the construction joint is smeared with cement slurry on the surface to increase the adhesion of the old and new concrete. The method is characterized by high production efficiency, low cost and less environmental pollution.

Chemical rust removers.

At present, the most environmentally friendly rust remover is a high-efficiency rust remover prepared from a variety of organic acids (vegetable acid, citric acid and edible phosphoric acid), complexing agents, permeation agents, corrosion inhibitors, surfactants, water and thickeners.

The main characteristics include high safety performance, no phosphorus, no volatile, no odor, non-toxic, non-flammable, high efficiency, thorough rust removal, no damage to the mother, water-free rinsing after rust removal is completed, no impact on post-treatment, and it is also a weakly acidic medium, which will not cause acidification reaction.

The method of removing rust from steel bars is as follows:

1. The steel bar can be removed by the rust remover on the surface of the steel bar, and the rust remover can be sprayed directly on the closed irritated rust on the surface of the steel bar, and the general effective time is about 2 4 hours, but this method is only suitable for the use of lightly corroded steel bars.

2. The steel bar can be directly soaked in the rust remover, about half an hour or socks are taken out and rinsed, and then the steel bar can be dried to restore the original state of the steel bar.

3. The manual rust removal method is to remove the rust spots on the surface of the steel bar through scrapers, wire brushes and other tools, while the mechanical rust removal method is to drive the disc wire brush to rotate through electric equipment, so as to achieve the effect of brushing the rust spots on the surface of the steel bar.

First, the rust of steel bars affects the quality.

You can be clearly informed that the steel bar rust will have a certain impact on the quality of the steel bar itself, and the severely corroded steel bar can no longer be used, the general steel bar entering the site needs to be done after the rust treatment can be used, and the quality of the steel bar with slight rust is not any problem, but will improve the adhesion between the concrete.

Second, the impact of rusting steel bars on pouring.

Rust of steel bars will have a certain impact on the pouring effect, and the more experienced masters in construction projects are aware that after the steel bar is rusted more seriously, it is necessary to do a good job of rust removal, and it is also necessary to test whether the steel bar has tensile and bending resistance, and this steel bar can be used to pour when it meets the use standards.