“Sand” can be divided into natural sand and machine-made sand.
2.
It is characterized by good particle shape of the finished products, and different equipment can be selected to generate manufactured sand of various specifications according to different material requirements during operation.
Generally speaking, on the premise of the same slump, the water consumption of machine-made sand should be slightly larger, but it should be considered according to the construction conditions, structures, transportation and other factors.
2.
Sometimes we see the writing of “river sand” in an article, literature and circle of friends.
“Sand” refers to fine-grained sand, which is mostly used in writing and literature.
Sand can be processed manually and mechanically, but sand cannot.
“sand” can be blown up by strong wind because it is very fine.
For example: sandstorm, sandstorm, desert, beach, etc.
“Sand” usually refers to the fine pieces of stone, which is usually a kind of building material.
However, sand and sand have different meanings.
However, when used in concrete members often subjected to friction impact, in addition to admixture, the cement sand ratio of concrete, the crushing index of sand and the content of stone powder should also be controlled.
But the strength of concrete is basically unchanged; When preparing special concrete such as pumping concrete with machine-made sand, pay attention to that the sand rate should not be too high to prevent reducing the engineering quality such as concrete strength and durability.
“Sand” is used when it is related to engineering, minerals and manufacturing.
Is this a typo? Or is there another way? So what’s the difference between the two? Let’s follow Xiaosai to learn about it! 1、 “Sand” and “sand” “sand” usually refers to very fine stone particles, which are related to nature, weather and meteorology.
Generally, sand refers to naturally formed stone particles, such as river sand and beach.
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“Sand” refers to “the finely broken stone”, which generally refers to substances as fine as sand.
Sand and sand are similar in meaning.
Influence of machine-made sand and stone powder content on the performance of cement mixture: through cement test, mortar test and concrete test, there is no great difference between preparing concrete with machine-made sand and natural sand introduction.
We all know natural sand, so what is machine-made sand? What is machine-made sand? Manufactured sand refers to the finished products processed through multiple processes by sand making machine or other special sand making equipment.
If it is related to sound or the sound is not loud, use “sand”, hoarse, sandy throat, rustling, rustling, etc.
1.
Sand refers to the stone particles formed by ore crushing.
It generally refers to substances as fine as sand, such as sugar, casserole, etc.
In construction, it is called fine aggregate, which can be divided into coarse sand, medium sand and fine sand according to different diameters.
Machine made sand: (artificial sand) is formed by crushing stones.
2.
Literally speaking, the two are different.
The project supervision unit shall carry out construction project supervision and related service activities in a fair, independent, honest and scientific manner—— Code for construction project supervision (GB / t50319-2013) “sand” often appears in our daily life, such as deserts, beaches, sandstorms, etc., while the word “sand” appears relatively infrequently.
2.
Natural sand: rock particles with particle size less than 5mm formed by natural conditions (mainly rock weathering) are called natural sand.
For example: cement mortar, emery, cinnabar, sandpaper, grinding wheel, river sand, mountain sand and sea sand.
Sometimes in daily use, the two characters are used interchangeably, such as river sand (river sand), sand dredger (sand dredger), sand (sand), etc; In some cases, the two words cannot be used with each other.
Such as: “beach”, “desert”, “hourglass”, “flying sand and stone” and so on; “Sand” (no matter what particle size) for concrete mixing in civil engineering.
On the premise of meeting the performance index of sand, select an economic and feasible scheme, which should not only meet the construction quality requirements, but also effectively control the production cost.
In this way, in areas lacking natural sand resources, it is not only feasible to use impact high-efficiency fine crusher or impact crusher combined with professional screening equipment to produce high-quality machine-made sand, but also carry out concrete construction, And can bring significant economic benefits.
Natural sand is washed by water and river, so it feels delicate.
Generally, fine granular loose stones obtained from water or those related to water are expressed by “sand”, such as “sediment”, “beach”, “sand spring”, etc., but “desert” is different.
Firmness and durability test: the firmness of machine-made sand is slightly worse than that of river sand, but it still reaches the standard excellent product index, and there is no problem in the use of ordinary concrete.
In the process of engineering construction, as an important part of concrete structural materials, the quality of sand and gravel has a decisive impact on the quality and durability of the whole project.
They refer to stone particles with granular state and other substances with similar shape.
Characteristics of machine-made sand 1.
The differences between the two are as follows: (1) from the perspective of Chinese, “sand” means “scattered stone particles in water”.
“Sand” refers to sand with larger particle size, which is mostly used in more rigorous scientific research.
For example, cement mortar cannot be written as “cement mortar”; Sandstorm, you can’t write “sandstorm”.
3.
One is related to water and the other is related to stone.
Join the ranks of “supervision engineers” above the point.
