On 26/06/2017 16:58, Harry Bloomfield wrote:
Bill Wright explained on 26/06/2017 :
Incidentally the worst thing you can do use too much water. The
stiffer the mix the stronger the concrete.

Bill

Which is why engineers do a slump test on newly delivered ready mix,
before accepting it.

I have found it surprising how much difference only a little extra water
makes.

--
Michael Chare

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