Marble stone block rate, yield rate, yield rate

Marble stone block rate, yield rate, yield rate

　　 Marble material performance refers to the possibility of processing certain specifications, a certain amount of blocks and slabs from the ore deposit. Industry requires the higher the material properties of stone, the better. Productivity must be measured by two indicators: block rate and yield rate.

　　 The marble block rate is also called the rate of stone block. It refers to the percentage of the volume of stone blocks obtained from the total volume of the original rock in the same range. Expressed as a percentage. Blocks refer to stone blanks with a certain block shape and qualified quality that are mined in the mine without inclusions and cracks, and processed and trimmed into a rectangular stone.

　　Marble block rate = obtained block volume (m3) / total volume of raw rock mined (m3) x 100%

　　The block rate is divided into a theoretical block rate and trial mining block rate. The actual block rate obtained in mine production is the actual block rate.

　　① Marble theoretical block rate: also known as volumetric block rate. According to a specific superimposed drawing drawn from a representative joint crack sketch, a method of cutting blocks is designed according to a certain specification, and the block rate is obtained.

　　②Marble test mining block rate: It is the block rate obtained by trial mining in a point that can represent the development of joints, cracks, layers, and color lines in the mining area among the measurement points of the block diagram. The volume of test mining is generally not less than 50-100 cubic meters.

　　 The marble yield rate is expressed in (m2/m3):

　　 marble yield rate = sawn board area (square meter) / sawn block volume (cubic meter)

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