Can fly ash mill be used for asphalt pavement

Can fly ash mill be used for asphalt pavement? The decisive factor does not lie in the mill itself, but in the grinding material fly ash, as a coal-producing country in China, the annual emission of fly ash is worrying. In order to link the earth's pollution pressure, improve resource utilization, comprehensive utilization of fly ash began to be attached importance to the establishment of an economic and environmental protection investment projects, fly ash in concrete applications before we have been introduced many times, similar to the concrete material asphalt material is equally applicable?

What is the scope of application of fly ash after grinding by the mill?

1. Add to the concrete instead of cement, fine aggregate to do the role of filling.

2. Replace clay to make low temperature synthetic cement, no clinker cement.

3. Ground fly ash can be used to produce a variety of construction products, such as thermal insulation bricks, wall materials, fly ash turnings and so on.

4. Apply to transform heavy clay, raw soil, acidic soil and saline soil, as agricultural fertilizer and soil conditioner.

5. Recycling industrial raw materials, as environmental protection materials, used in paper making, etc.

Fly ash is the main solid waste from coal-fired power plants, is captured from the flue gas in the fine ash, itself has a certain fineness, but not uniform, most of the fly ash needs to be ground by the Raymond mill to be, but in the concrete and the direct application of the fine aggregate, asphalt concrete also requires a large number of coarse aggregates, fine aggregates, additives and asphalt liquid mixed into, but whether the original fly ash or ground ultra-fine fly ash is not suitable for asphalt pavement. Not suitable for asphalt pavement, for the following reasons:

1. Asphalt pavement of express highway, first class highway, main road and other high grade requirements for sand and gravel raw material specifications are extremely high.

2. Fly ash is soft, abrasion resistance, impact resistance is relatively weak, applied to building design can also be fast highway and other transportation facilities slightly improper.

3. Asphalt pavement raw material ratio requirements are strict, especially like fine aggregate graded filler.

Fly ash, although the application of asphalt pavement is not suitable, but in the expressway, urban highway facilities also play a great role in the construction, asphalt pavement is only the most surface layer of the highway, and highway facilities by the bedding, grass-roots level, surface layer, etc., in the grass-roots level, surface layer of sand and gravel concrete materials in the amount of larger, are required to a large number of supply of fly ash, so fast highways, arterial roads, although the asphalt layer does not need to add coal fly ash raw materials, but in other pavement grass-roots level, are in need of a lot of supply. But in other pavement grass-roots level are used in large quantities.

Fly ash mill in various fields of application are due to the different nature of the fly ash and the decision, industrial production, in addition to fly ash need to use industrial milling equipment, in addition to steel slag, water slag and other solid industrial wastes can be turned into a treasure after Raymond machine grinding, transformed into a variety of industries need to compete for the development of industrial raw materials. Welcome to click on the website customer service to understand the details of the equipment, 24 hours online, free consultation.