Through a series of studies on the detection and removal methods of residual value of flocculant in mechanism sand,as well as the impact of residual value of flocculant on concrete performance.It proposes a concentration control method for mechanism sand flocculant.This method can enable sand making enterprises to use flocculants reasonably and effectively,achieve scientific use and precise control.Meanwhile,a series of studies have proposed the use of ozone centrifugal stirring separation method to remove flocculants in mechanism sand(i.e.,the"secondary sorting"of mechanism sand).So as to eliminate the influence of residual value of flocculant in mechanism sand on concrete performance,further standardize and improve the market quality of concrete aggregate production.
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