Which Materials can be Used to Produce Machine-made Sand?
At present, there are many kinds of stone materials that can be used for sand making in the mining industry, at least 200 kinds. Basically, as long as the added value is not high, ores with a water content within a certain range can be used to make sand, including tailings from beneficiation. So, what kind of material can be made into machine-made sand?
1. River pebble, basalt, granite, limestone, bluestone, iron ore, etc.
These are ideal green building materials with a hard texture. They can be used as raw materials for sand and gravel production lines. Sand made of basalt is mixed with concrete, which reduces the weight of the concrete and provides thermal and acoustic insulation. It is a good aggregate for lightweight concrete in high-rise buildings. The stone powder produced by crushing lime and granite can also be reused. These are better alternatives to natural sand.
2. Sandstone, quartz sandstone, etc.
Sandstone is a sedimentary rock composed mainly of quartz and feldspar. It is one of the good raw materials for strength and granule shape. In addition, its advantages such as no weathering outdoors, no water melting, moisture resistance, sound absorption, etc. are one of the good building decoration materials.
3. Tailings, slag, construction waste, etc.
These exist as industrial wastes at first, but they are also "treasures" after reprocessing, such as construction waste concrete blocks, crushed stones, bricks are often used to crush sand and gravel aggregates, construction, roads and other industries, and use them as raw materials to produce machine-made sand. The investment cost of raw materials can be saved. It can be used as raw materials for sand making: construction waste, waste bricks, gravel, etc.