SealBoss 1500 Water Stop Foam
SealBoss 1500 Water Stop Foam
(OP)
Cooling tower concrete basin (base 56’x38’ with 4’ tall wall) has multiple leaks like these shown on the attached photos. The contractor is proposing SealBoss 1500 Water Stop Foam http://www.sealboss.com/1500water-stop-foam.pdf
I would appreciate any feedback if you used this product before.
iv
I would appreciate any feedback if you used this product before.
iv






RE: SealBoss 1500 Water Stop Foam
RE: SealBoss 1500 Water Stop Foam
My experience is similar to mjr6550. There's a whole bunch of these magic materials (Sika, DeNeef, etc. make them) that are swelling hydrophilic or hydrophobic grout. They come in with great promises and have tons of reason when they don't work. Hydrophilic take a day or two to activate when they dry up, which can be annoying. Hydrophobic keeps it shape until it's smashed, then it keeps that shape.
RE: SealBoss 1500 Water Stop Foam
Yes these cracks are just unsightly, not hazardous or damaging but the client wants to seal these cracks.
The exact cause of the leakage cannot be determined at this time because of the multiple factors in play:
- the water to cement ratio was exceeded
- the maximum slump was exceeded
- water is also seeping from the horizontal cold joint at the base of the wall and this is most likely caused by the construction contractor not properly vibrating the concrete during pouring and therefore the concrete did not consolidate around the waterstop
- contraction/control joints were not placed in the designs
If we seal the cracks with proposed SealBoss foam will new cracks be formed?
Are contraction/control joints necessary? Can they be installed “on-line” ONLY and how?
iv