Investigation of the effect of the silicon oxide injection method on the activity of Portland cement

The influence of the method of introducing silicon oxide (aerosil) into Portland cement on the characteristics of model concretes has been studied. Two main methods of introducing aerosil through a suspension obtained using an ultrasonic homogenizer and charge treatment in a vortex layer apparatus (VLA) are considered. The resulting model concretes were studied for phase composition, microstructure, and compressive strength. The influence of the aerosil injection method on the activity of Portland cement was evaluated. The effect of VLA processing on the granulometric composition and morphology of Portland cement particles has been studied.