A newspaper article in the Sydney Morning Herald has alerted to an imminent problem, and the answer could be at the bottom of the ocean.
Salt content may be a bigger problem than ever in the sand supply, which is a major contributor towards efflorescence.
Fortunately, by coincidence we've pre-empted this problem. Sitting in Boral's materials testing facility is long term testing of concrete samples mixed with water containing twice the salt content of the ocean and Efflock. After 12 months, efflorescence is still not evident, and retains hydrophobic effect.
Check out the newspaper article here.