The difference between manufactured sand and natural sand and their applications

Artificial machine-made sand.

It is a kind of artificial sandstone that is processed by sand making equipment. River sand is naturally occurring and can be directly exploited. In addition, they are expensive in terms of materials, resources, environmental protection and production costs.

There is also a big difference in aspects. The following describes the comparison of artificial manufactured sand with natural river sand.

Machine-made sand: Machine-made sand is sand and gravel processed by sand making machines and other sand making equipment.

Nowadays, the technology of sand making equipment has also made great progress, which can meet the needs of users for large-scale production and construction.

Natural sand. Natural sand is formed by the long-term impact of seawater, natural sand can be used as construction sand, but its resources have been depleted and scarce, and substitutes are urgently needed. In this regard, manufactured sand is superior to natural sand.

Machine-made sand: There are many types of sand and gravel raw materials, rich resources, no need to worry about no raw materials in use, there are a variety of sand making equipment to choose from.

Natural sand: This is a natural resource that requires long-term seawater shocks to form. The formation period is long. Moreover, the natural sand has gradually dried up and cannot meet the market demand.

Machine-made sand: By adjusting the particle size of the material produced by the sand making equipment, it can meet the production needs of different users, and it has the function of environmental protection.

Natural sand: It is usually mined in rivers, however, large-scale mining of natural sand can cause some damage to the ecological environment such as rivers and beaches.

Machine-made sand: Machine-made sand is processed by various sand making equipment. In the process of sand making, sand making equipment needs to be purchased, but the purchase of equipment is a one-and-done transaction.

Natural sand: Natural sand is a natural resource that can be used directly for production after mining, which can reduce production costs. However, due to the reduction of its resources, the cost of extraction is relatively high.

From the comparison of the above advantages, we can accurately and clearly understand the difference and connection between the two kinds of sand, but compared with the overall situation, the machine-made sand with rich resources, strong production capacity and many types of equipment is more conducive to the long-term development of users, and its production cost and ** are also cheaper, which is more in line with the needs of modern construction sand.

Machine-made sand is made by sand making equipment such as sand making machine, although the technology of sand making equipment has made great progress to meet production needs and construction requirements, but natural sand is formed by long-term seawater impact, and natural sand is more suitable for construction sand needs in terms of material alone.

There are many types of sand and gravel raw materials for machine-made sand, and the resources are abundant, so there is no need to worry about the shortage of materials in the process of use, and natural sand is a natural resource, which needs to be formed after long-term seawater impact, which shows that the formation cycle of natural sand is long, and the existing inventory of natural sand may be mined and exhausted, so it does not have long-term, and in terms of longevity, machine-made sand is better than natural sand.

The particle size of machine-made sand can be adjusted to meet the production needs of different users by adjusting the sand making equipment, and many sand making equipment has environmental protection functions and can be used for tailings treatment; The mining of natural sand is generally carried out in the river, and the mining of natural sand in large quantities will cause certain damage to the ecological environment such as rivers and beaches. Therefore, from the perspective of environmental protection alone, machine-made sand is more environmentally friendly than natural sand.

Machine-made sand and gravel are processed by a variety of sand making equipment, and sand making equipment needs to be purchased in the sand making process, and labor costs and transportation costs are also required in production; Natural sand is a natural resource, which can be directly used for production after mining, and only labor and transportation costs are required in the production process, so the cost of production compared with the cost of machine-made sand will be a little higher than the cost of natural sand.

Natural sand has been soaring, and it has become an inevitable trend for machine-made sand to replace natural sand. What are the advantages? How is it different from natural sand?

Natural sand is mainly distributed in the vicinity of rivers, with the continuous expansion of the country's infrastructure, the amount of sand and gravel aggregates is gradually increasing, for the protection of the environment, the amount of natural sand mining is bound to be controlled. At present, manufactured sand, as an alternative to natural sand, has been widely used in the construction field. Machine-made sand used to replace natural sand usually refers to sand less than 5 mm, and the raw stone is processed by professional sand making equipment.

The difference between manufactured sand and natural sand.

1) The content of machine-made sand and gravel powder is relatively high, but some professional equipment can control the content of machine-made sand and gravel powder, so that it is used to configure concrete and natural sand. Machine-made sand mainly detects the content of stone powder, river sand detects the mud content, and other detection indicators are basically the same.

2) In addition, the machine-made sand particles are relatively irregular, but this tends to make them have a better degree of adhesion.

3) Secondly, the raw materials of machine-made sand are very sufficient, which can meet the demand for sand and gravel aggregates.

4) Thirdly, although the firmness of machine-made sand is slightly worse than that of natural sand, according to research, it can still reach the index of excellent products and can completely replace the use of natural sand in concrete.

The above benefits of machine-made sand compared with river sand are all for high-quality machine-made sand, but some sand making equipment is poor, and it is possible that the machine-made sand produced does not meet the requirements of concrete configuration. Therefore, when making sand processing and production, special attention should be paid to the purchase of equipment and the configuration of the production line.

Natural sand is weathered and disintegrated by nature, washed and collided by water flow, transported and gathered, and what is left of itself is not easy to weathering and the highest strength, which can be said to have left the essence; The natural sand with heavy mud content is still natural sand after washing and screening; Machine-made sand is directly broken into particles below 5mm by large rocks, although its particle shape is not as good as natural sand, which will affect the index of its crushing value, but as long as it is within the specified range, it can be used, and the fresh crushing surface of machine-made sand can also enhance the adhesion of cementing materials in concrete.

Machine-made sand refers to the sand processed by the sand making machine and other ancillary equipment, and the finished product is more regular, which can be processed into sand of different rules and sizes according to different process requirements, which can better meet daily needs.

The machine-made sand production line is composed of a combination of equipment such as vibrating feeder, jaw crusher, sand making machine, vibrating screen and belt conveyor. According to different process requirements, various types of equipment are combined to meet the different process requirements of customers.

Comparison between the use of manufactured sand and natural sand:

1. Robustness and durability test. Manufactured sand has slightly less robust properties than river sand, and there is no problem with its use in ordinary concrete. However, in the concrete components that are often subjected to friction impact, in addition to the admixtures, the gray-sand ratio of the concrete, the crushing index of the sand and the stone powder content should also be controlled.

2. Effect of machine-made sand and gravel powder content on the properties of cement mixture. Through the cement test, mortar test, concrete test, the use of machine-made sand to prepare concrete and natural sand is not much different, generally speaking, under the premise of the same slump, the water consumption of machine-made sand should be slightly larger, but according to the construction conditions and structure and transportation and other factors. But the strength of the concrete is basically unchanged; When using machine-made sand to prepare and pump concrete and other special concrete, pay attention to the sand rate should not be too high, so as to prevent the reduction of concrete strength and durability and other engineering quality.

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Summary. Hello dear, happy to answer for you. Can machine-made sand replace medium coarse sand? Can replace the current fineness modulus of machine-made sand is generally between, belonging to medium coarse sand, can machine-made sand replace medium coarse sand?

Hello dear, happy to answer for you. Can machine-made sand replace medium coarse sand? It can replace the current fineness modulus of machine-made sand is generally between, belonging to medium coarse sand, machine-made sand is basically medium coarse sand, fineness modulus is between, its particle shape and gradation (that is, the matching ratio of large and small particles) can be adjusted according to the use and demand, and its hardness is determined by the hardness of raw materials. The grains of manufactured sand have poor roundness and are mostly angular.

Is it okay for machine-made sand to pour the filter layer?

Thank you, teacher! Machine-made sand, commonly known as artificial sand, is made of crushing and screening of mining machinery with smaller particle size (limestone, granite, basalt, river pebbles, pebbles, etc.), mine tailings, and industrial waste slag particles. The filter layer is made of 2-4 layers of sand, gravel or pebbles and other materials with different particle sizes, and the particles gradually increase along the direction of the water flow, and the particles of any layer are not allowed to pass through the pores of the adjacent coarser layer.

Summary. In general, the differences in sand species are as follows:

1. There are two types of sand, which are divided into natural sand and machine-made sand.

1.Natural sand: Rock particles formed by natural conditions (mainly rock weathering) with a particle size of less than 5mm are called natural sand.

2.Machine-made sand: made by mechanical crushing and screening after soil removal treatment, and the particle size is smaller than that of rock, mine tailings or industrial waste residue particles, but excluding soft and weathered particles.

Is there any difference between manufactured sand and desalination sand?

There is no difference between the specificity of machine-made sand and desalination sand! It's all sand! It's just that the production process is different!

The details are as follows:1Simple production steps for manufactured sand:

Block stone, coarse crushing, medium crushing, fine crushing, screening, dust removal, machine-made sand. 2.Desalinated sand is the sea sand that has been desalination (washed), but the salt content is much lower than that of sea sand.

Kiss but, according to the teacher's understanding, 1The reed sand in the sea is rich in negative valence chlorine brigade ions, which has strong corrosiveness. 2.The chloride salt produced will reduce the strength, stiffness and stability of the structure!

In general, the differences in sand types are as follows: 1. There are two types of sand, which are divided into natural sand and machine-made sand. 1.

Natural sand: Rock particles formed by natural conditions (mainly rock weathering) with a particle size of less than 5mm are called natural sand. 2.

Machine-made sand: after soil removal treatment, made by mechanical crushing and screening, the particle size is smaller than the rock and beam stone, mine tailings or industrial waste slag particles, but excluding soft and slag dust air dissipation particles.

Second, among them, according to its different sources, natural sand can be divided into river sand, sea sand and mountain sand. The details are as follows:1

The surface of mountain sand is rough, the particles are angular and angular, the sand content is high, the content of organic impurities is also more, and the quality is poor. 2.The surface of sea sand and river sand is smooth, but the salt content of sea sand is high, which has a certain impact on concrete and mortar, and river sand is relatively clean and widely used.