epoxy injection for crack repair work

epoxy injection for crack repair work

Reinjection system

The reinjection system is a proven technology which hs been applied to construction of seoul and daegu metropolitan subways as well as of incheon onternational Airport. Its simple, practical design enables even non-export users to easily handle the system and inject resin deep doen into the crack.

Need for new technology

The tests on core injection status after crack repair works with existin injection systems show that the resin cannot reach the shear parts of the crack but remains just in the near-surface area. As the existing systems are not capable of injecting resin into small crack areas, a new technology of resin injection needed to boost the concrete structures.

Feature

The reinjection system as adopted only the advantages of high-pressure and low-pressure injection system to implement a dual injection scheme : the priamary high-pressure injection into major creack areas with forced power and the secondary low-pressure injection onto small crack and shear parts of the crack aided by the capillary phenomenon of the injector, that is, a slow secondary injection with spring force during the pot life.

It is also possible to check the injection woth the unaided eye. There are no losses of structures caused by hugh-pressure method, and because labor costs are cut back, construction costs can be kept down. Because any ordinary techinians with no experience but also in repairing cracks in existing structures.

[ Work Photo ]