Steel Plate Waterstops?
Steel Plate Waterstops?
(OP)
I read in ACI 350R (Environmental Engineering Concrete Structures), Section 4.3.3.1, that 1/4" steel plate waterstops have been used sucessfully in conctruction joints. Has anyone had positive experiences using steel plates for waterstops? Any negative experiences with them? I am thinking that with a steel plate there would be less of a chance of the waterstop getting bent over during the conctete pour.
Any input is appeciated.
Thanks
FYI, I'm designing a sewage lift station that is 30 feet deep in saturated soil. Obviously, the wet well cannot leak but in this case it is very important that the dry well remains dry also. I will have 3 horizontal construction joints. One at the slab level and 2 higher in the walls.
Any input is appeciated.
Thanks
FYI, I'm designing a sewage lift station that is 30 feet deep in saturated soil. Obviously, the wet well cannot leak but in this case it is very important that the dry well remains dry also. I will have 3 horizontal construction joints. One at the slab level and 2 higher in the walls.






RE: Steel Plate Waterstops?
IMHO, the best "all-around" solution is to use bentonite based materials, such as this:
http://www
Bentonite based products are flexible, conform to virtually any shape, and best of all, are installed between concrete placements - when inspection and verification of proper installation can be made without having to work while fresh concrete is setting.
www.SlideRuleEra.net![[idea] idea](https://www.tipmaster.com/images/idea.gif)
RE: Steel Plate Waterstops?
I suspect they're not being used anymore because they have to be welded togetner, they're more expensive and they don't seal as well as PVC or rubber. We thought about using stainless steel waterstops in some ozone contactors about 10 years ago but found ozone resistant waterstops that were less of a nuisance to install.
I'm surprised that no one makes a stiffened PVC waterstop to avoid the folding over issue.
RE: Steel Plate Waterstops?
RE: Steel Plate Waterstops?
RE: Steel Plate Waterstops?
Are todays waterstops still prone to bending over?
RE: Steel Plate Waterstops?
Corrosion was not considered a problem as the reinforcement in the wall is subject to the same conditions and is not particularly considered at risk (for non-aggresive groundwater).
I haven't specified steel waterstop since moving on from that job. I usually specify a swelling type these days.
I have seen copper waterstop used for a swimming pool built in the 50's.