It is known that silica powder plays an important role in railway, bridge, expressway, airport runway, tunnel and urban high-rise building.Because the use of microsilica powder concrete with early strength and wear resistance characteristics, the practical application effect is very ideal.

Micro silicon powder concrete used in water resources and hydropower engineering, can improve the abrasion resistance of engineering at home and abroad the traditional abrasion resistant materials multi-purpose polymer materials such as epoxy mortar, this kind of material abrasion resistance is good, but due to its linear expansion coefficient of several times the ordinary concrete base, and basement concrete temperature adaptation is not good, easy to fall off, craze in natural climate conditions and the construction of complex, toxic and expensive, not widespread popularization and application.The use of micro-silica powder concrete, erosion resistance increased by about one time, resistance to 48m/s flow rate of erosion resistance increased by more than three times.

Micro-silica powder concrete used in water conservancy projects can improve the anti-crack performance of hydraulic concrete cracks, has become a widespread concern.The reason for the crack is that the hydration heat of the material itself heats up. For example, adding fly ash into the concrete can reduce the electric heating temperature, but the early strength is relatively low, which limits the amount of fly ash.

Micro-silica powder concrete can improve the anti-permeability and anti-salt corrosion performance, and protect the steel bar.

In underwater engineering, due to chloride ion infiltration into concrete, rapid corrosion of steel reinforcement, concrete delamination, short life, serious damage.Underwater concrete casting generally adopts the conduit method, because the cement slurry is dispersed, it can not bond well with the base, and reduce the strength of the contact part with water.These problems can be obviously improved by adding silica powder into underwater concrete.

Micro-silica powder concrete is used in rush repair of traffic highway pavement, which has strong wear resistance.

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