What is the influence of micro-silicon powder on the performance of cement net slurry and mortar

Adding micro-silicon powder can slow down the early hydration reaction speed of cement, reduce the hydration product, loose the structure, and reduce the early strength of cement mortar. Adding an appropriate amount of silica ash can improve the late hydration reaction speed of cement, increase the hydration product, improve the compactness of cement mortar, promote the hydration reaction for a long time, so as to improve the late and long-term strength of cement mortar. The residential content of silica ash is 8%. Adding silicon ash will reduce the fluidity of cement slurry and increase the setting time of cement, but the stability of cement is qualified. Effect of pretreatment microsilicon powder on the properties of cement slurry and mortar

In order to make full use of the excellent performance of body ash, the mechanical force chemical dispersion method was pretreated for industrial brick powder at different pH values. The particle size and Zeta potential of the silicon powder dispersion were tested with a Malvin Nanolaser granmeter. The prepared silica ash is mixed into the cement to form the cement slurry and cement mortar samples. The performance of mortar specimen at air temperature, freezing and thawing cycle and high temperature were tested. Liu Gai, Bai Min, Zhao Peng-