Construction sand is a key raw material for building cement concrete and asphalt concrete skeletons, and it is a bulk building material product that consumes a lot of natural resources every year. my country has become a country with relatively high sand and gravel producers and consumers, with an annual output of up to 20 billion tons.
With the depletion of natural sand and gravel resources, the increasing demand for ecological environmental protection and infrastructure construction, machine-made sand has gradually become the main source of construction sand in my country.
Market fire, what is the charm of machine-made sand?
The development of machine-made sand not only affects environmental issues, but also comes from the increasing demand for sand from the increasing number of infrastructure projects. Before the implementation of the ban on river sand mining, the source of sand used in the market was mainly natural sand, and machine-made sand did not have an advantage in the market.
Advantages of machine-made sand
- 1. Compared with natural sand, machine-made sand has a larger specific surface area, and the concrete prepared with machine-made sand has higher strength. The machine-made sand particles have many edges and corners, and the surface is rough, which is conducive to bonding with cement and other cementing materials, and is conducive to the improvement of concrete strength. a defect.
- 2. The production of machine-made sand can be combined with the production process of crushed stone, which greatly reduces the production cost of machine-made sand. The production of machine-made sand can be adjusted and controlled by the advanced equipment and technology for producing machine-made sand, and the machine-made sand that meets the design requirements of concrete mix ratio can be manufactured. The gradation is reasonable, the porosity is low, the stability of the product is guaranteed, and the quality is easy to control. This is natural. Sand can't.
- 3. It is beneficial to the comprehensive utilization of mineral resources, which not only solves environmental problems but also improves the utilization rate of natural resources. The application of machine-made sand in concrete improves and alleviates a series of environmental problems caused by digging sand, reduces the production cost of commercial concrete and the price of construction sand, improves the quality of construction projects, and reduces the pressure of construction sand tension. Because the production of machine-made sand from nearby materials solves the long-distance transportation, saves national resources, reduces costs, and protects the environment.
- 4. The application of machine-made sand in concrete is the need for sustainable development. Looking forward to the future, machine-made sand is playing an increasingly important role in the construction market and has a better prospect. Concrete is the most important raw material in the construction industry, and sand used in concrete is one of the important constituent materials of concrete.
In recent years, under the guidance of the national ecological civilization construction policy, the sand and gravel aggregate industry has vigorously promoted transformation, upgrading and leap-forward development. Traditional and small enterprises have been closed in various places, outdated production capacity has been eliminated, and quarry resources have been integrated, re-planned, and scientifically developed. The layout, the industrial structure has been optimized, the industrial concentration has been continuously improved, and the scale, large-scale, group-based, green and ecologicalization of sand and gravel enterprises has become a trend.
Bellian machine-made sand complete processing system solves the problems of unreasonable grading of traditional machine-made sand, high powder and mud content, substandard grain shape, etc. It has little pollution and no dust in the production process, and meets the national environmental protection requirements. Stone, commercial concrete, cement products and other industries have brought huge benefits and development opportunities.
