The density of primary fly ash is an important physical property, and its size is related to many factors such as particle shape and iron content. Usually, the density of first-class fly ash is in the range of 20~2.6g cm.
First of all, the density of fly ash is related to the shape of its particles. Fly ash is mainly composed of spherical particles, which are formed during the combustion of coal. These spherical particles are packed in such a way that the fly ash has a certain density. When the content of spherical particles is high, the density of fly ash also increases.
Secondly, the density of fly ash is also related to its iron content. The iron in fly ash is mainly in the form of iron oxide, which has a higher density. Therefore, when the iron content of fly ash is high, its density will also increase accordingly.
In addition, the density of fly ash is also affected by other factors, such as carbon content, particle size distribution, etc. Carbon is less dense, so when the carbon content in fly ash is high, its density decreases accordingly. The particle size distribution affects the way fly ash is packed and the porosity, which affects its density.
It is worth noting that the density standard of first-class fly ash is clearly specified in the national standard, usually 26g/cm³。This standard is based on the physical properties and application requirements of fly ash, and is used to measure the quality and performance of fly ash.
In practical applications, the density of first-class fly ash has an important impact on its performance. For example, when fly ash is added to concrete, the denser fly ash can provide a better filling effect, improving the compactness and strength of the concrete. At the same time, density is also one of the important indicators to measure the quality and performance of fly ash, which is of great significance for ensuring the quality and safety of the project.
Overall, the density of primary fly ash is a complex physical property that is affected by a variety of factors. In practical applications, it is necessary to evaluate and select the appropriate fly ash according to the specific situation and requirements. At the same time, it is recommended to consult experts in the relevant field or consult relevant literature for more detailed and accurate information for relevant professional knowledge and research.