We have a test report for quality of concrete vacuum dewatering systemby this system, we remove excess water which is poison for concrete. Due to this, it has following advantages:concrete gets early initial strength with reduced shrinkage and reduced permeability. It gives abrasion resistant flooring.28 days strength is gained in 7 days which results in faster speed of construction.It is most economic and suitable for heavy duty floors as cement saving is approx. 15%.It has reduced shuttering time.With this system you get rapid concreting, giving time and labour economy.