Date:2018-12-20 10:46:02

Grinding Mill Checks Against Fly Ash

Grinding Mill Checks Against Fly Ash

Grinding Mill checks the quality of fly ash and construction engineering

Fly ash is the most commonly used admixture for hydraulic concrete. The dam concrete uses a large number of pulverized coal friends and has high quality requirements. Quality control runs through the selection of sources and the entire process of organization supply. The dam concrete is characterized by large volume, and most of the strength requirements are not high (except for a few parts), but the performance requirements such as crack resistance, impermeability, erosion resistance, freeze-thaw resistance, etc. are high, and actually high-performance concrete. Fly ash is a commonly used admixture for mixing hydraulic high performance concrete.

Fly ash is a powder collected from the flue gas of pulverized coal fired boiler. It is an artificial volcanic ash material with small particles and mostly spherical (commonly known as microbeads). In the concrete, the particle shape effect produces the water-reducing potential energy, the micro-aggregate effect produces the dense potential energy, and the volcanic ash effect produces the activation potential energy; thereby reducing the water demand, improving the durability and impermeability, reducing the shrinkage, and reducing the internal Temperature rise, increase tensile strength, resist sulfate attack, reduce bleeding and inhibit alkali-aggregate reaction. Therefore, the addition of fly ash in concrete is not only to save cement, but more importantly to improve and improve the performance of concrete. Fly ash is an important component of dam concrete. At present, many customers call to consult on matters related to fly ash. The mechanical technology mainly provides fly ash processing equipment, and all kinds of ore with certain hardness such as limestone, marble and coal are passed through Raymond mill and high-pressure suspension roller mill. High-pressure micro-powder mill, grinding mill, ultrafine mill, etc. are processed to a certain fineness for use in fly ash processing. We have many years of experience in the production of mills, equipment all over the world, and have been well received by customers.

The granite artificial aggregate used in the concrete engineering class has a water consumption of 110kg/m3 for the four-stage concrete. Such high water consumption will inevitably bring a series of adverse consequences to the concrete. Comprehensive measures must be taken to reduce water consumption, while Class I fly ash is one of the important measures to reduce water consumption. The amount of Class I fly ash used in concrete engineering is large. It is estimated that the amount of ash used will exceed 1 million tons, and it is concentrated in 1999-2001. For example, the ash used in 1999 is 280,000-300,000 tons, and the estimated ash is 32,000 tons. . Therefore, it is necessary to make a choice of ash source, correctly handle the relationship between quality and quantity, and ensure that qualified fly ash is supplied to the concrete project in large quantities, continuously and stably. For processing sand and gravel aggregates, we can use our jaw crusher, impact crusher, impact crusher (sand making machine), cone crusher and other sandstone aggregate production technology. In addition, the fineness modulus, stone powder content, gravel gradation, needle-like content, super-small diameter and other parameters of the gravel aggregate produced by Dawn Heavy Industry Mobile Crushing Station can meet the Shizhong Expressway Bridge. The materials used in tunnels, pavements and other engineering projects require the production of finished aggregates and aggregates. It can be seen that the application of artificial aggregates in highway engineering is completely feasible and promising.

Our technical department is dedicated to the research of crushing and grinding mill for mines. It specializes in the system engineering of crushing and screening equipment such as crushers and vibrating screens, equipment selection, equipment production, equipment utilization, etc., in national key projects such as high-speed railways and highways. The research on high-grade sand and gravel aggregate production equipment has an absolute advantage.

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