Analysis of natural granite marble

With the marble industry has grown in strength, the remaining marble marble processing enterprises waste (waste, scrap) is becoming more and more, especially after the marble produced by sawing powder, while taking the treatment and secondary sedimentation cycle, over time, waste, powder piles up the mountain for a long time not only tie up the land, but also serious environmental pollution, has become a long-term business development constraints a chronic problem.

    Although the marble industry of the use of marble waste of time not very long, but our employees have developed a variety of marble Limestone waste, residue, and the use of powder methods. Scrap the use of natural granite marble granite precast panels is a synthesis of advanced technology.

    Granite is a natural process we are available and the floor and wall decoration materials, with marble tombmarble. In the granite quarries and processing plants, a large number of granite marble every day due to lack of effective use of waste were discarded, resulting in waste of resources.

    First, the waste of natural granite marble granite panels of the ingredients pre-

    1, the granite marble waste

    For the use of granite wastes, the first of its grinding to a certain size of the particles. After crushing particle size distribution of particles carried by the following group with: 1.2mm in diameter from 25% to 30%, particle size of 2.5mm, from 25% to 30%, particle size 5mm to take 20% to 30% diameter of 10mm, from 25% to 50%. Group with at least 3 of not less than the diameter of the particles.
 
    2, hydraulic cementitious materials

    Hydraulic inorganic cementitious Travertine is used as a curing agent, preferably high strength, durability, granite can be effectively cured the hydration properties of slag particles can be prepared mixture of dense hydration. Specifically, if the production of prefabricated blocks of granite flooring, cementitious material used requires not only has the weather, acid and alkali, wear resistance and other properties, and the hardness should be consistent with crushed granite. Because of different hardness, with diamond abrasive grinding, because of differences in surface roughness, resulting in uneven reflected light, the gloss of grinding, particle surface area also caused parts of cementitious materials with uneven wear. To get similar tones with natural granite can add the appropriate amount of cementitious material in the coloring material. In short, the cementitious material used according to the following conditions: at room temperature curing, high strength and compressive strength of 70.0 ~ 10.0MPa, bending strength of 9.MPa; good freeze-thaw resistance; wear resistance; subjected to various chemical corrosion products, showing good durability, and long-term stability. Hydraulic cementitious materials and granite particles weight ratio of 1:2 to 3.

    Second, synthesis of natural granite marble precast granite plate waste production process

    A certain size within the vertical casting mold, according to the required size configuration two stainless steel shelves, separated by 3 layers, in the middle layer of the formation of pre-cast granite granite surface layer containing particles of the new waste stone mixture, in The remaining outer layers to form the bottom of casting not include new granite particles poured mixture, and then out of two partitions, dry room of forming, water conservation, stripping, the forming tool with a diamond center at the cutting block, and then grinding mode can also be used to set several box the same size of the mold, the mold in the two divisions were separated by 3 layers, so that one can produce more granite blocks of prefabricated panels.