Sand aggregate is a general term for sand, egg (gravel) stone, gravel, stone, stone and other materials in water conservancy projects. Sand aggregate is the main building material for structures such as concrete and masonry in water conservancy projects. Aggregates with a particle size greater than 5 mm are called coarse aggregates, which are often referred to as stones. Aggregates with a particle size of less than 5 mm are called fine aggregates, also known as sand. Sand and gravel is the main building material for structures such as concrete and stone masonry in water conservancy projects.
1. Raw material supply PK
Natural sand has a long life span, and the sand and gravel that has existed in the market has been mined almost, so there may be a shortage of supply or out of stock at any time and place;
The machine sand has sufficient raw materials. As long as there are stones, it can produce machine-made sand. Urban construction waste and mine tailings can also be developed into machine-made sand materials. Compared with natural sand, the amount of mechanism sand is quite abundant, so there is no need to worry about using it. The problem of shortage of materials in the process.
2. Mining cost PK
Although natural sandstone is a gift from nature, its mining cost is very high, especially when the surface sandstone is gradually depleted. In order to obtain natural sandstone, deep excavation is required, which will not only increase production. Investment costs, but also cause great damage to the surrounding environment.
Rock materials can be used everywhere as mechanical sand materials. Even some waste resources, tailings, etc. can be made into artificial sand by using sand making machines, etc., which not only solves the problem of environmental pollution, but also improves natural resources. The utilization rate, in addition, the input cost of such raw materials is not much, so it fully meets the requirements of circular economy and scientific development concept.
3. Investment prospects PK
Although the initial cost of investing in natural sand will be slightly less, the natural sandstone resources currently in the market are rapidly decreasing, and some river sand resources are almost exhausted. In order to protect riverbank dams and protect ecological balance, local governments have stipulated that some rivers are strictly prohibited and limited in mining. Therefore, the development of infrastructure industry depends on natural sandstone. This is definitely not enough, so the investment prospects for natural sandstone are still Very limited;
For the mechanism sand produced by the sand making equipment, firstly, the high quality mechanical sand can be used to better control the building quality. Secondly, the stable and low price is the main advantage of the mechanism sand, and the price of the mechanism sand is not enough everywhere. The same, but they are much cheaper than natural river sand. Compared with natural river sand, the mechanism sand is at least 20 yuan cheaper per ton. In addition, the profit of the mechanism sand is quite considerable. It is calculated on the scale of 2,000 tons/day and based on the current market price. The estimated gross profit per month is more than 1 million yuan. So in general, whether it is from the size of the profit space or from the sandstone phase, the investment prospects of the mechanism sand are relatively bright.
