Resin Injection
Type A: Barrier Protection – an internal negative waterproofing system
Damptec Systems Ltd was contracted to tank a lift pit in Rugeley, Staffordshire. The lift pit was constructed out of brickwork with a painted floor. Water ingress was evident at the wall/floor junction.
We recommended a retrospectively-applied waterproofing repair system using resin injection.
Step 1
We applied Koster 2 in 1 on the negative side (internal). This is a PU injection resin for dry and water bearing cracks. It is applied by drilling angled holes along the crack (10-15 cm apart), inserting injection packers and then injecting the resin via a one component pump (see photo above).
The resin forms a foam when it comes into contact with water which pushes water out of the crack (see video). When no water is present the product forms an elastic solid body resin to permanently seal the crack.
The second phase of the waterproofing work was as follows:
- The cleaned concrete floor was primed with Polysil TG 500.
- We formed a fillet along the wall/floor and the vertical change of direction junctions using Koster Repair Mortar Plus.
- Finally we applied the Koster KD System
This 3-step system consists of 3 products:
- KÖSTER KD 1 Base: Fast curing mineral sealing slurry with excellent resistance to aggressive ground water and high-water pressure.
- KÖSTER KD 2 Blitz-powder: Highly reactive powder with extremely short setting time. With application of the dry powder, active water leaks are sealed within seconds.
- KÖSTER KD 3 Sealer: Extremely low viscosity silicifying liquid. The active ingredients penetrate deeply into the substrate and react to form an insoluble compound. The pores are plugged and permanently sealed through the mineralization process.
