Analysis of Adhesive and Reinforcing Engineering for Construction Reinforcement

来源：安德美    发布时间：2016年12月09日 13:00:55

Abstract: This paper introduces the performance characteristics and working mechanism of building reinforcement adhesives and compares them with the traditional methods of reinforcement connection. At the same time, according to different types of damage will be reinforcement works and a more detailed division, so the adhesive in the various conditions of the fine performance of a more detailed description.
 Key words: adhesive; adhesive; reinforcement
 At present, the reinforced concrete structure in the world of various forms of structure plays a pivotal role. However, due to the extension of life or other natural disasters such as a variety of reasons such as reinforced concrete building components strength, lack of stiffness caused by cracking, breakage and other frequent occurrences. In China, many built after the founding of the building after decades of use has reached the peak of maintenance and reinforcement, how to ensure that buildings continue to normal and safe use of the construction industry is often encountered problems. On the other hand, in recent years, due to changes in the use of the original structure of the building, component transformation, reinforcement of the project also increased. After a long period of engineering and technical personnel to work, and gradually formed a more comprehensive practical reinforcement of the project in the actual reinforcement works to a wide range of applications and development. At the same time, with the rapid development of science and technology, the emergence of a variety of new building materials for reinforcement technology, methods of continuous innovation, upgrade provides favorable conditions.
 The use of building structural adhesives on the reinforcement, reinforcement of buildings to be strengthened, is the recent application of a wide range of reinforcement methods. This method is mainly used structural adhesive that adhesive material, reinforcing steel plate or profile, or other reinforcing materials firmly bonded to a variety of reinforced concrete components, so that reinforcement materials and the original components The formation of collaborative mode to meet the structure, the original design strength, stiffness, durability requirements. Application of structural adhesives on the various types of components to connect, reinforce or repair, compared to the traditional connection reinforcement method has many outstanding advantages:
 (1) It is connected with the synthetic resin adhesive to strengthen the component. It is more riveting than the general welding. The force of welding is uniform. The material will not produce stress concentration (such as thermal stress during welding). Good to ensure the integrity of the components and improve crack resistance, and the integrity of the relationship between the basic extent of the load bearing capacity and stability.
 (2) structural adhesives can be different nature of the material firmly connected, which diversify the building materials today, but also traditional methods can not match the advantages.
 (3) the use of adhesive construction, the process is simple, can greatly shorten the construction period, often 1-2 days or less can be used, especially in the various components of the reinforcement is even more so that some traditional methods can not be reinforced Components to repair reinforcement; for some important military projects, transport facilities is particularly important. And its anti-aging performance, can meet the various requirements; in the construction can also improve efficiency, reduce costs, energy conservation.
 Commonly used reinforcement adhesive in accordance with its basic properties are divided into A-class glue and B-class glue, the important structure, cantilevered members, subjected to dynamic effects of the structure, components, using A-class glue; general structural components can be B-grade glue. At the same time in accordance with the adhesive cable bonding material can be divided into different, carbon fiber composite impregnated / adhesive with adhesive safety performance indicators, sticky steel and the external viscosity of steel with an adhesive and anchoring adhesive.

The adhesive of building structure combines the results of advanced technology such as chemistry, mechanics, material, structure, photoelectricity and so on. It is applied to the reinforcement of steel structure of building structure, anchor bar anchorage and on-site pouring construction, showing its outstanding merit and importance. Domestic companies after years of unremitting efforts, have successfully mastered their technology, and applied to the actual construction, to solve some of the traditional methods used in building reinforcement difficult to solve the problem, creating a huge economic and social benefits. I believe that building materials such as adhesives and technology will have a bright future.