The bearing capacity of the column is related to the safety of the building, and we often encounter such a problem: how to improve the bearing performance of the column? Although adhesive steel glue, as a common reinforcement material, can well improve the bearing capacity of the column, many friends are not very clear about the characteristics and construction methods of adhesive steel glue. Here, let us give you a comprehensive interpretation of the characteristics and construction methods of adhesive glue, so that you can better apply adhesive adhesive to the actual building reinforcement project.
First of all, it is necessary to understand the characteristics of viscose steel glue:
1.Features of adhesive steel glue.
A high-quality and durable adhesive should have the following characteristics:
High viscosity: Adhesive steel glue can adhere well to the concrete surface and is not easy to fall off.
Compressive resistance: The compressive resistance of adhesive steel adhesive is much higher than that of traditional reinforcing materials, which can fully improve the load performance of concrete structures.
Durability: The adhesive can still maintain its strong strength and stable performance under long-term bearing conditions.
Simple construction: the construction of adhesive steel glue is relatively simple, and the reinforcement project can be completed quickly.
2.Construction method of adhesive steel glue.
In order to apply the adhesive correctly, we need to follow the steps below for construction:
Substrate treatment: Please first treat the thick steel plate and concrete surface layer carefully, the thick steel plate needs to be derusted and polished, and the concrete needs to be rough, but it should not be cut into grooves under any circumstances. The edges and corners of the concrete surface of the original component must be rounded and polished, the rounding radius should not be less than 20mm, and the rounded concrete surface layer should be rounded with loose aggregates and dust.
Glue: according to the recommended ratio a:b=2:1, stir evenly with a special mixer.
Gluing: Please apply the prepared adhesive steel glue evenly on the surface of the steel plate in advance, and ensure that the gel is uniform and no bubbles are generated. At the same time, pay attention to the appropriate amount of gluing, excessive or insufficient may have an impact on the reinforcement results.
Patiently stick the steel plate: Stick the steel plate on the concrete surface without missing any corners and make it tightly jointed.
In order to gain a deeper understanding of the correct use of adhesive glue, we will take the reinforcement of the columns of an old building as an example. First of all, please remove the stains and impurities from the columns, as well as the rust spots on the steel plates. Then, according to the instructions of the manual, the two components of AB of the viscose steel glue are fully stirred and fused. Subsequently, the prepared adhesive is evenly applied to the steel plate, taking care to ensure that the coating is uniform and free of bubbles. Subsequently, the steel plate coated with adhesive steel glue is laminated to the column to be reinforced, making sure that the steel plate and the reinforced column are tightly adhered together.
When applying adhesive glue, you need to pay attention to the following:
Clean the surface thoroughly to ensure that there is no dust, oil and other impurities.
When applying glue, it is necessary to grasp the amount of glue, too much or too little will affect the reinforcement effect.
When pasting the steel plate, make sure that it is in close contact with the concrete and there are no gaps.
The importance of cleaning the surface of the column during the work of reinforcing the column with adhesive glue is to ensure that the surface is spotless in order to obtain very good adhesion. At the same time, controlling the amount of glue applied is also a key factor in achieving reinforcement performance.
Steel adhesives are widely used in many fields, including building reinforcement and bridge reinforcement, to improve bearing capacity. For example, in the process of building reinforcement, the pillars of the reinforced house are reinforced with steel to provide support and enhance the stability of the house construction. The use of adhesive can improve the bearing capacity of the column. A lot of practical data shows that the columns of bonded steel reinforced housing buildings are very good at resisting loads, and have high stability and durability, which is why adhesive steel adhesive can become a popular building reinforcement material.