What kind of stone can be broken into machine-made sand

Sand and gravel are an important building aggregate in the construction industry. However, in recent years, natural sand mining has been limited and the demand for machine-made sand has soared. Many bosses want to switch to investing in the sand and gravel industry. So what raw materials are better for machine-made sand? 1. What is the * raw material for machine-made sand?
There are many types of machine-made sand raw materials, among which the harder stone materials are river pebble, granite, basalt, iron ore, etc.; the softer materials are weathered rock, limestone (bluestone), coal gangue, dolomite, shale soil , hemp ancient stone, gypsum, calcium carbonate, etc., are relatively good raw materials for sand making. Customers can choose the raw materials for machine-made sand production reasonably according to the supply demand and market price, so as to obtain a larger profit space.
2. What kind of machine-made sand is considered as good machine-made sand?
Whether the machine-made sand is uniform and non-stick: In the sand and gravel industry, the finished particles are required to be uniform and non-stick, so the sand making machine can be reasonably configured in the production line to improve the quality of the machine-made sand.
Whether the machine-made sand is clean and free of impurities: It is required that the content of machine-made sand and gravel powder is small and the content of mud is small. Therefore, a sand washing machine can be reasonably configured in the machine-made sand production line to remove dust and impurities from the machine-made sand.
Whether the machine-made sand meets the national standards: machine-made sand is generally used in infrastructure, so there are strict requirements for quality.