Semi-encrypted silica fume for cinema concrete

Semi-encrypted silica fume for cinema concrete: This is a type of Microsilica added to the concrete used in the construction of cinemas. It is used on one side to increase the fire and frost resistance of the building.Concrete mixed with fly ash or micro silicon powder, the main purpose is to save cement and improve the use of cement for cement concrete ratio test people know that a certain strength of cement concrete needs a certain amount of cement, if the cement with less, it can not give full play to the characteristics of the cement, the concrete is not easy (uniformity, fluidity). It is necessary to achieve a certain amount of ash amount of concrete in order to produce ease of use, in order to play the maximum effect (analogy when pure clay or pure sandy soil planting plants, plant growth is not good, if the clay soil mixed with sand or in the sand mixed with clay, the effect is better than the pure). What would happen if other ash was used instead of cement? (Of course, the diameter of the particles of other ash should be not much different from the diameter of the particles of cement.) By doing tests, a certain proportion of fly ash (or Silica Fume) mixed in the concrete while reducing the same cement can also achieve the effect of the original unadulterated. Do not think that fly ash and cement have the same effect, fly ash is only mixed into when the amount of cement is not strength control dosage (but the ease and uniformity of control dosage) to have an effect. When too much fly ash, extruded with strength control of the amount of cement, the effect is to help the reverse, so, in the concrete mixed with fly ash can not endlessly increase the amount of cement to replace, that is counterproductive.