Need concrete resistant to H2SO4
Need concrete resistant to H2SO4
(OP)
I need to patch some wells and pipe with something that is resistant to 60ppm(I think) H2SO4 at a wastewater treatment plant. We are going to coat the wells and pipes with epoxy coating for this use. But the wells are in such bad shape, we will have to do some patching to get a monolithic surface.
Any suggestions? Manufacturers? Anyone work in wastewater?
Any suggestions? Manufacturers? Anyone work in wastewater?





RE: Need concrete resistant to H2SO4
Someone made a presentation to our company a while back about a concrete that was corrosion resistant, but it sounded suspicious and I haven't heard from them since.
RE: Need concrete resistant to H2SO4
There are some polymer coatings for concrete that are resistant to both. One company (I can't remember the name but I'll check my notes) that produces a spray applied plastic soup that hardens into a nice protective shell.
RE: Need concrete resistant to H2SO4
Fosroc or any other manufacturer of repair mortars should be able to suggest a repair system suitable for sewerage wet wells.
RE: Need concrete resistant to H2SO4
www.corrocoat.com
RE: Need concrete resistant to H2SO4
I want to make the concrete repairs also acid resistant because eventually the coating will fail. And yes, surface prep is the key. Unfortunately, these wells are so eaten up, I am not sure I will even have a well left after it is cleaned up. The patches are going to be pretty thick in places. I am thinking about building a box within a box. Anybody ever done that with good results?
I have never heard of glass flake coating. I will follow the link.
RE: Need concrete resistant to H2SO4
Tell Bill Hello from Dick C from Mpls
Richard A. Cornelius, P.E.
WWW.amlinereast.com
RE: Need concrete resistant to H2SO4
http://www.sauereisen.com/c_prod/c_resist.asp
RE: Need concrete resistant to H2SO4
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Xypex Admix C-5000 is added to the concrete mix at the time of batching.
- Highly resistant to sulphates and chlorides.
- Concrete protection from aggressive chemicals
with a pH range of 3-11 in constant contact
www.xypex.com.au
RE: Need concrete resistant to H2SO4
That is now pretty much standard practice in Oz when refurbing sewage wet wells. The interior is lined with HDPE. The concrete itself does not have to be particularly resistant to sulphide attack.
Xypex and other admixtures are helpful to some extent, depending on structural detailing, loading and other complicating factors, including cost.
RE: Need concrete resistant to H2SO4
You may also want to check out Aluminaliner by Quadex. It is a calcium aluminate admix.
http://www.quadexonline.com/
Their website focuses on rehab of structures, but you can also use it to build new ones.
w5ehx
RE: Need concrete resistant to H2SO4
We also did a repair on a manhole years ago with the permaform people noted in the thread. worked real well for the application.
RE: Need concrete resistant to H2SO4
Another solution after repair by using Sulphur Concrete Polymer lining uo tp 2 mm thick. I knew recently a Polish company producing this system(www.marbetwil.com.pl)
RE: Need concrete resistant to H2SO4
RE: Need concrete resistant to H2SO4
RE: Need concrete resistant to H2SO4
ceramic john
your manholes with h2so4 problems are becomeing a nightmare to cities ageing
swer systems ceramic cement spray coatings can handle these inviorments they
were origanlly redevelopmed by the department of energy for nuclear waste
containment. a good resource for this would be the ceramic concrete association
international (newly formed) but you can contact them through yahoo groups
ceramic cement best of luck ceramic john