The production of cement with fly ash is mainly used as a mixture of cement admixture, the quality must comply with relevant state regulations. Due to the different content of fly ash, the doping cement has different names and properties. Preparation of cement with fly ash, crack resistance, and good workability. As the fly ash than the area of small, and was glassy spherical, and thus less demand for cement, mortar or concrete fluidity, easy to water, dry shrinkage is also small, good resistance to sulfate corrosion, low heat of hydration, is Mass concrete and underground works of the ideal cement varieties. Fly ash Portland cement production process equipment is simple, reducing the cost of cement, an increase of cement production, expanding the cement raw materials, the use of industrial waste.
2) Fly ash block
China's traditional wall building materials red brick, with a large amount of soil, firing 100 million to destroy 100 acres of land, for a large population of such a country. Cultivated land resources, limited countries, the protection and conservation of every inch of land is of great significance. Therefore, to promote the development of building materials such as fly ash block, is conducive to promoting the reform of wall materials, limit or stop the production of red brick.
Secondly, fly ash hollow block and clay products than the light weight, high strength, good insulation properties, durability. In the construction process, compared with the brick, its advantages are: more than double the brickwork can improve work efficiency, and can greatly reduce labor intensity, the workers from the heavy manual labor liberation, and play to save time and reduce the project The role of cost. This is in line with the current wall materials lightweight, high strength, hollow, large development direction.
At present, the use of fly ash research and production of various blocks steamed fly ash silicate block, autoclaved fly ash aerated concrete block, fly ash concrete small hollow block, fly ash foam concrete Block, fly ash hollow block.
3) fly ash production ceramsite
Using fly ash as the main raw material, adding a certain amount of cement and water, the ball into the sintered lightweight aggregate for the sintered fly ash ceramsite. It is a good performance of artificial lightweight aggregate, the amount of powder can amount to 80%. Concrete can be prepared, the production of blocks.