Recently, people are discussing intensely about the sticky steel glue reinforcement and carbon fiber cloth reinforcement. Many people think that sticky steel glue reinforcement is not reliable and easy to go wrong. But the sticky steel glue reinforcement still has a great market. So whether sticky steel glue reinforcement has a market or not in today's building reinforcement industry? For finding out the advantages and disadvantages of sticky steel glue reinforcement, firstly we have to understand its principle of reinforcement. The materials that Mankate’s technical staff provides are as follows.
Sticky steel glue, as the name implies, is a kind of structural adhesive for sticking the steel and reinforcing. Through bonding epoxy adhesive and concrete components so that steel plate and components can support the force together, it will enhance the bearing capacity of components. At present, what misunderstandings that we have to this reinforcement method with a long history? Firstly let’s look at the shortcomings of sticky steel glue reinforcement:
1. The useful life is only 30 years. After 30 years, the adhesive property will decrease.
2. Chemical glue is afraid of the fire. If there is a fire, it will be a devastating blow for the buildings reinforced by the sticky steel glue.
So editor from Mankate will answer the following questions according to the two points mentioned above. Firstly, it is about the useful life. The anti-aging performance of good sticky steel glue is very strong. In the humidity resistance and anti-aging performance test of Mankate’s sticky steel glue, the samples will age 90d under the environment of 50℃ and 95％RH. The results showed that the reduction rate of its shear strength was less than or equal to 12% when compared with the results of short-term test at room temperature. It completely meets the testing standard of A-grade glue. Secondly, it is about the sticky steel glue afraid of the fire. Now many buildings have been painted fire retardant coating and equipped with a large number of fire partition. There is almost no chance to contact the fire for a long time. So the effects of sticky steel glue reinforcement is not as bad as people say. Furthermore, does the useful life of a building really have 30 years? Nowadays, the domestic situation changes with each passing day. The rise of Shenzhen City is only 30 years. After 30 years, maintaining this building or removing it is still not clear. So many problems are unfounded.
