Chlorinated Water and its Effects on Concrete Reinforcement 2

[MJB315]

All-

I am designing a reinforced concrete retaining wall for a community pool. I am trying to understand the effects of chlorinated water on concrete and concrete reinforcement.

A few questions:
Is chlorine infiltration synonymous with chloride infiltration?
Does chlorinated water have a serious corrosive effect on uncoated reinforcement? Is it on par with exposure to deicing salts?
Is there a standard for swimming pool design?

I am sure this topic must have been covered before, so any links to past discussions would be helpful.

Thanks,

MJB

"We shape our buildings; thereafter they shape us." -WSC

 

[MJB315]

All-

While on the topic of pools-- any suggestions on / war stories about joint sealant products would be welcomed.

I am looking at WR Grace's "DECK-O-SEAL" product for my floor / wall joints since it is resistant to chlorined water. Any comments?

-MJB

"We shape our buildings; thereafter they shape us." -WSC

 

[JedClampett]

We design water and wastewater treatment plants. They use more chlorine than you can imagine and in high concentrations.
If you use a good mix with a low water cement ratio (<.45) and adequate cover, the chlorinated water shouldn't ever get to your bars, much less corrode them. Plus all pools have plaster or pebble tek coatings that are water resistant. I would not advise coating the reinforcing. it's way more trouble than it's worth.
When we design a chlorine contact basin we use our regular design procedures. As a matter of fact, we have places that are much more aggressive than chlorine environments.
De-icing salts are much more aggressive.

 

[hokie66]

Good advice from Jed. Concrete pools rarely have chloride attack problems. If they do, it is because the original construction procedures were inadequate. In addition to the mix design which he mentioned, consolidation and curing are essential.

 

[MJB315]

Thanks-- your input was helpful! (read: reassuring)

MJB

"We shape our buildings; thereafter they shape us." -WSC