they use tremie construction & they use admixture(superplasticizer) but my question is what is the benefit of adding water to the hole before concreting starts
there is water in the bottom of the hole due to high water table as high as 1 meter but on top of that they add additional water which they reason that it increase the strength of the concrete by removing the entrained air as it is displaced by the concrete
I am currently supervising a multi story building that requires a shoring piles with 1meter diameter, 18 meters depth and 0.8 m distance b/n piles the contractors are pouring the concrete while there is water as high as 3 meters and without use of vibration they use admixture superplasticizer(...