RE:RE:RE:Salt??But why use zeolite over sand? If you can get sand cheaper than zeolite why spend the extra for something that does the same job? Unless there are some magic properties of zeolite that we do not know about in its interaction with ice, then sand is the way to go. As it stands now, zeolite is fancy dirt, it doesn't melt ice like salt, it is a traction agent same as sand used to coat ice. Concentrate on the areas zeolite would do well like growing mediums and filtration systems, steer clear of wasting time and money on being overpriced fancy dirt as traction alternative.
Only thing I can immediately think of would be to mix zeolite and salt. Salt would melt the ice and zeolite possibly soak up the meltwater? Still not getting rid of salt entirely but would this be feasible? Not sure if this would just create iceballs or something like that but could be an alternative to lower the amount of salt used. In the end it comes down to price, and judging by Montreal's affinity for dumping raw sewage into the river systems, they won't give 2 deuces about eco-friendly alternatives.