River sand is called soft gold, but with the development of the construction industry, railways and highways, the natural sand has been nearly exhausted. Therefore, a variety of policies have been issued to protect resources, but will the price of sand and gravel rise under the mining ban policy? What about the quality?
Sand and gravel account for about 80% of the concrete, According to the source of raw materials, it can be divided into river sand (including lake sand), sea sand, mountain sand and other natural sand and machine-made sand. According to the specifications, it can be divided into gravel, coarse sand, medium sand, fine sand, etc.
With the protection of resources, natural sand and river sand are exhausted, and the supply of sand and stone materials is insufficient, leading to high prices of sand and stone, which is not easy to buy. Therefore, there is the birth of machine-made sand.
The illegal exploitation of river sand has caused great damage to the ecological environment, and with the development of society, river sand cannot meet the market demand. Under this huge supply gap, machine-made sand is widely considered as a substitute for river sand in the industry, with obvious advantages. The so-called machine-made sand is a rock particle with the particle size less than 4.75mm that is mechanically broken and screened after soil removal.
There are sufficient raw materials for machine-made sand. As long as there are stones, machine-made sand can be produced. Urban construction wastes and mine tailings can also be developed into machine-made sand raw materials. Compared with river sand, using high-quality machine-made sand can better control the construction quality. Stable and low price is the greater advantage of machine-made sand.
As a manufacturer of machine-made sand equipment with production strength, the data of SMMVIK Machinery shows that the use of high-quality machine-made sand can reduce the cement consumption per cubic meter of concrete by more than 50 kg.
At present, many cement industries have planned to transform the production of sand and gravel. The machine-made sand equipment manufactured by our company has good quality, long service life and perfect grain size. If you are interested in our equipment, you are welcome to consult. We look forward to your arrival.
