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concrete mix is becoming very sticky , w/c ratio is 0.19 to
0.21,any solution to reduce the stickiness.  gurdeep singh  Dear
Gurdeep ,I can suggest 3 things.  1)Find the strongest
superplastizer as possible (compatible to your materials),if it
possible 40%water reducer.  2)Use silica fume >10%.The round
spheres of silica fume will reduce the stickiness greatly.
3)Use HIGH energy mixer (which is very important).  by the way
,what is the maximum size of your aggregates? Also pay attention
to cap your cylinders with high strength molten sulfur mortar.
Best regards  spiros licoudis  thanks spiros  We are working as
suggested ,  MSA is 20 mm,but we found that the aggregate got
crushed at stress of 70 to 90 mpa .  we find difficult to reach
the target of 120mpa .  We are using cubes instead of cylinders.
gurdeep singh   Your mix is sticky because of all the fines.
Adding superplasticizer or silica will only increase the
stickiness. Same with the high energ