In message , The Natural
Philosopher writes
Clint Sharp wrote:
ISTR we had this discussion elsewhere, and that only true of lime based
cement. Portland doesn't work like that.

Worth double checking.
Of course, you're right. It is only lime based cement that works that
way AFAIK. Portland's a nasty mix of all sorts of rubbish. If anyone
wants to look up the liquid CO2 thing, it's known as SCF or super
critical fluid treatment and it's not actually liquid CO2 (my mistake)
that's used.
But in any case its not a huge CO2 issue really. Its just more greeny
******** 'wood good, natural organic, concrete made in factories
inorganic unnatural bad.'
Very likely, there's a massive amount of bull**** talked about CO2 et al
by the greeny weenies.

Its jusdt religion really.
Of course.
--
Clint Sharp