Waterproofing Pool
Waterproofing Pool
(OP)
I am designing a rowing pool. The American architect who has done these pools in the past says we should use an integral crystalling wayerproofer in the concrete and no external waterproofing membrane. But the manufacturer's liteature for the crystalline waterproofing says it can waterproof only cracks only up to 0.4 mm wide. I think we should design the pool in accordance with the ACI guide for water retaining structures, but can we be comfortable with not using a waterproofing membrane? I have used integral crytalline waterproofing in baseemnt walls, but I am not sure that I have ever done a pool without a waterproofing membrane. Anyone on this forum done a pool with integral crystalline waterproofing and no membrane, and if so, how did it turn out? (The architect also recommedns a surface siloxane paint, but I can't see how that is going to do much good against a head of water).






RE: Waterproofing Pool
RE: Waterproofing Pool
RE: Waterproofing Pool
Hard to say if the crystalline waterproofing did any real good, but it didn't hurt.
BA
RE: Waterproofing Pool
RE: Waterproofing Pool
JedClampett; the manufacturers say that it is good for cracks <0.40 mm which is not so tiny.
Hokie66: I am well aware of autogenous healing but I would not rely on it happening. I like something more assured of happening .. if it leaks I am not going to look good if I say I relied on autogenous healing.
RE: Waterproofing Pool
Is this pool in ground or suspended?
RE: Waterproofing Pool
I have not seen them used much in critical situations (by choice), but have seen their effect eroded with time in applications. They certainly don't hurt; however, I'm not ready to believe the mfr claims either.
They are commonly used in masonry production and architectural pre-casting; which is specifically where I've seen the erosion with time.
RE: Waterproofing Pool
Thank you for sharing your experience. Much appreciated. My application is in reinforced concrete pool.
Follow up questions, for those with experience with pools:
a) do you put vertical construction joints at any particular centres along the pool wall?
b) what is the minimum horizontal reinforcement you use in the walls to ciontrol cracking/leakage? I assume it would be something much more than 0.002Ag. I was thinking of perhaps 0.0060 Ag which for a 300 thick wall works out to 900 mm2 per m perface or 15M @ 220 centres per face.
RE: Waterproofing Pool