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The Natural Philosopher

wrote:
The Natural Philosopher wrote:
Bruce wrote:
wrote:

either it sets like rock or it doesnt

On the contrary, in a slightly moist atmosphere, each cement particle
can hydrate (in other words, go off) without joining up to other
particles to form lumps.
********.
I have left bags in 'slightly moist atmospheres' for the odd year, and I
an assure you they set into a lump.

I have been involved in investigating
several projects where such degradation of cement caused major
problems, including complete collapse of a major structure.

I don't think fence posts are 'major structures'.

lol. I'm not sure he's yet noticed that bedding fence posts doesnt
need any cement at all. Your explanations are spot on Mr
Philosopher

rest snipped

I've dealt with enough genuinely qualified 'experts' to not be
susprised if Bruce really were who he says. Its remarkable what
blcks passes for expertise, how much such people too often
assume, and how comically wrong they get things, too often over
and over.

NT
Also, if he has been investigating failed concrete structures, he has
probably totally ignored the 'human factor'

Contractors are far more likely to pad out the mix with any old crap
they can grind up and feed into a mixer, or simply not throw as much in.
And swear blind it was all in date, not clumped and otherwise somebody
else's problem.