concrete Stephen Webb 14 Apr 2014 15:28 EDT

Greetings all, customer has a 7 month old concrete slab that been having
an on going efflorescence issue. the slab was treated as follows
1. a product called glenium was added to concrete and a moisture barrier
used
2. a "quick cure" curing agent  was applied
3. the slab was covered with masonite during construction
4. then ground, and a densifier installed and honed to 800grit
5.  then  stain proof installed
6. then months later 40sk was tried to stop efflorescence
   the contractor has been monitoring the slab humidity (85-94%, air
60%) and has detected no change for several months. there is no moisture
coming in that we can detect. Any comments would be appreciated
Thanks
Stephen

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