What is the fineness of secondary fly ash

In the use of fly ash, it can be divided into first-class fly ash and second-class fly ash, etc. Many people know that the fineness of first-class fly ash is 325 mesh, then what is the fineness of second-class fly ash, and which equipment can be used to process second-class fly ash?

In fact, the fineness of secondary fly ash is also 325 mesh, the fineness of tertiary fly ash is also 325 mesh, the difference between them is not in the fineness but in the sieve rate. The first level of fly ash requires a sieve rate of not less than 88%, the second level of fly ash requires not less than 80%, in addition to the water demand ratio is also slightly different.

For the processing of secondary fly ash, we generally use Raymond mill, the equipment processing capacity, the fineness of the powder between 80-325 mesh, the sieve rate can reach more than 95%, so the processing of secondary fly ash is not any problem.

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