Ann: Second Lab Trial Produces Geopolymer Concrete, page-5

sweetsound, in australia, yes they are shutting but there are enormous reserves of flyash that are very cheap and their CO2 footprint is miniscule as the CO2 was already emitted in producing the coal. So it is a win, win, win and win. miniscule CO2 input, very cheap, getting rid of a waste product that is considered a contaminant for ground rejuvernation and diluting a cost of producing green concrete by reducing the % of kaolin used. That would make our 50,000 tonnes of production of kaolin at Pittong equivalent to 100,000 tonnes if it were all used for green concrete as a way of illustration.
flyash elswhere in the world is increasing as so many countries are building more coal fired power stations so needing more coal. irrespective of whether one thinks it is good or bad for the environment, coal is going to be around for a long time to come