Sealing
Pipe Penetration
Water Leaks
Multi Family Apartment Complex
Multi Family Apartment Pipe Penetration Leak Stop
A certified SealBoss installer was asked to stop water intrusion and resulting water leaks from a courtyard at a new apartment complex into the underground parking structure below.
The water leakage had been causing unwanted staining and erosion of the concrete floor and was soaking into the fire stop material. It was determined that the persistent water intrusion was caused by rain and the installed irrigation system to water the plants in the courtyard.
The contractor used three different methods to inject SealBoss 1510 Water Stop Foam into and around the pipe penetrations to seal of the areas of where the leaks were significant.
The first method used was a horizontal blanket injection to fill the void between the geofoam and the poured concrete to create a seal around each pipe penetration. This was accomplished by strategically placing injection packers and drilling all the way through the concrete deck into the geofoam.
Next the area was drained and an injection packer was installed for injection of the hydrophobic foam.
After a couple of days the leaks had moved and began leaking around the pipe sleeves.
With the larger penetration sleeves being made of metal, the contractor drilled at a 45 degree angle until he hit the pipe sleeve. SealBoss 1510 leak sealing foam was then injected until positive refusal around the sleeve was seen.
To help assist with containing the reacting material, SealBoss CanSeal Foam was used to as an “instant” backing. The SB CanSeal Foam was also used to fill the voids between the concrete and the ribbed steel sheeting.
SealBoss ® CanSeal Utility Foam is a specially formulated closed cell sealing foam — engineered to fully expand inside the applicator ‘gun barrel’. When the foam exits the tip of the gun it is already fully expanded, enabling you apply exactly as much foam as you need without the messy and undesired “mushrooming” experience you may have with most of the other ‘over the counter’ foam products.
Small Pipe and Pipe Penetration Leak Sealing Kits
For the smaller pipe penetrations with a poly sleeve, a Grout Injection Needle was used to inject the foam into the tighter areas. Using open cell backer rod to stuff into the sleeve to contain the reacting resin as the needle was pulled out, SealBoss 1510 Water Stop Foam was able to expand upwards sealing the poly sleeve and stopping the leak.
The contractor was able to stop the leaks and the building owner was notified to reassess the irrigation system for the courtyard above.
Call Your SealBoss ® Pipe Penetration Leak Sealing Specialist
If you have any questions on chemical injection grouting or any related applications, please contact our team of qualified SealBoss grouting repair representatives to schedule an on site consultation & full systems training. Call us at 714-662-4445.
