Improve the early strength of concrete and mortar

Meanwhile, microsilica Reaction with CH, CH constantly being consumed will speed up the rate of hydration of cement, concrete and mortar to improve early Strength. Is not mixed with silica fume concrete repair material 28d hydration SEM images of silicon mixed with 5% Stationary conacrete plant repair material 28d scanning electron  micrograph, has been the 28d, of which there are unhydrated Cement particles, there is produced a small amount of crystals  of calcium hydroxide, a small amount of ettringite crystals, and in Figure 7 Was found in the cement hydration is quite good, quite complete,  but denser cement paste, the gap is small, the By mixing 5% microsilica concrete repair material strength than without microsilica batch mixing plant materials Intensity is higher. Silica mixing mortar patching material  mixed with silica flexural strength than non-patch Flexural strength of the mortar material was nearly 30%, nearly  30% of the compressive strength should be higher.