mixing station raw materials shall meet the following requirements stacking

(1) Select the size according to project the number of bulk cement storage tanks, the bulk cement by different manufacturers, varieties, concrete mix plant, lot of cans saved. (2) use of fly ash storage silo. (3) coarse aggregate in a hierarchical storage, coarse and fine aggregates shall be stored in the passing zone and area to be tested, with the wall separating wall height of not less than 2m, shall not be mixed positions in a variety of materials and the use of cement mortar surface, the positions of the slope of the ground set, not water. And set explicit signs, signs of the production and batch mixing plant comply with "safe and civilized railway construction project site sign" - Iron identify six requirements. (4) including hopper and wood, including all additional storage space must be light steel roof, steel roof bagging line height 7m. (5) sand and gravel storage yard aggregate washing areas should be set one-way drainage slope; feeding channel should be combined with mixing station batching equipment parameters for flat and slope settings. (6) should be required to carry aggregate material quality inspection status identification, identity includes material name, origin, size, quantity, feeding time, inspection status, the test report number, test batch and so on.