Types of the Construction Stone Production Line

The highway projects often use the massive stone production line, which is generally processed by the mining natural rocks. Sometime, the natural pebbles are used. The stone production line should select the hard rock whose calcarea is uniform and not easily weathered without cracks. For the rocks with anisotropy and cleavage, we should correctly grasp the anisotropy and the cleavage, which is very important for massive stone production line in the mining, processing and use of the highway projects. The stones with inordinance can be directly obtained through blasting. The size from a direction is generally 30cm to 40cm, in which the thickness of the medium part should not less than 15cm. The volume should not be less than 0.01m3 and the weight should be more than about 30kg.
The rubble is commonly used in the masonry of the subgrade slope, retaining walls, bridge slope protection and other projects. The ultimate compressive strength of the rubble used for the subject of the masonry work should not be less than 30MPa. The ultimate compressive strength used for subsidiary masonry works should not be less than 20MPa. The rubble is obtained by blasting the layered rock or relying on the manual mining, which is commonly used in masonry bridge foundation. The dimension stone is in square shape without sharp corners. There are two large parallel surfaces and the corners need no processing. The thickness is small than 20CM and the width is 1.5 to 2 times of the thickness. The length is 1.5 to 3 times of the thickness. The dimension stone is obtained by roughly trimming the neat stone. The shape is substantially a squarer and the thickness is not less than 20mm. The conical stone is often used for paving the road pavement of the grassroots. The rock whose ultimate compressive strength is not less than 30MPa is generally used.
The aggregate production line can be divided into coarse gravel, fine gravel and the stone chips. The particle size of the aggregates in the stone production line is generally in the range of 5mm to 100mm. The highway engineering has different specifications with gravel according to different uses.
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