Wuxi 20m bridge inspection car rental, Huai'an 22m bridge inspection car rental

Wuxi 20m bridge inspection car rental, Huai'an 22m bridge inspection car rental Tel
: 180-6251-5888 Since the 1970s, China has begun to study the reinforcement and reconstruction technology of old bridges
At that time, there were few units engaged in this work, the reinforcement and reconstruction technology and method adopted were relatively single, and the development was not fast
However, since the 1990s, there have been more units engaged in this work, and the research topics and projects have also increased greatly
The inspection car rental of Wuxi 20m bridge will make a brief introduction to several technical studies commonly used in the current reinforcement work Concrete structure reinforcement technology is one of the commonly used technologies in bridge reinforcement
Among them, the research on the performance and mix proportion of reinforcement materials is its primary research topic
Its contents include: using modified epoxy resin to carry out the mix proportion test of different curing agents under anhydrous and aqueous conditions and at no temperature, and carry out the mechanical property tests such as compression, tension, bending and shear resistance, so that the reinforcement materials used in anhydrous environment can reach or exceed the mechanical property index of C50 concrete, and the reinforcement materials used underwater can reach the mechanical property index of C30 concrete 　　1
Properties of adhesive in epoxy resin system The bonding material for concrete repair and reinforcement studied is mainly epoxy resin system
The adhesive made of epoxy resin has the following excellent properties: (1) some processing technology
Epoxy resin is a low molecular weight epoxy resin
Due to its small molecular weight, it is easy to mix with curing agent and other additives and easy to operate (2) high adhesive force
The molecular structure of epoxy resin contains high polarity, ether group and active ring
And ether groups make epoxy molecules produce electromagnetic attraction with adjacent sections, and the ring can react with free bonds on the surface of the medium to form chemical bonds
In addition, the epoxy resin has low shrinkage and low internal stress during curing, which also helps to improve the adhesive force (3) low shrinkage
Epoxy resin and curing agent react through direct addition or ring opening polymerization, so there is no water or other volatile products
Compared with other thermosetting resins, the shrinkage during curing is low, generally less than 2% (4) good durability and stability
The cured epoxy resin system has excellent chemical stability, alkali resistance and corrosion resistance
It does not need regular anti-corrosion treatment, but also forms a protective layer for the concrete members to prevent the concrete members from corrosion (5) low water absorption
The water absorption of epoxy resin is very low, which is less than 5% at room temperature, so it can be used as moisture-proof material (the strength is reduced by only 10% after one month of high temperature and humidity)
It is suitable for the repair and reinforcement of bridge concrete structures in coastal areas Huai'an 22 meter bridge inspection car rental can move the location, which can safely, quickly and easily allow the inspection staff and construction staff to enter the homework location for activity inspection or maintenance homework
The bridge inspection vehicle does not affect the traffic when working, and can drive forward slowly without retracting the boom